./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 c36dfa3b 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-c36dfa3 [2021-11-04 09:54:19,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:54:19,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:54:19,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:54:19,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:54:19,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:54:19,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:54:19,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:54:19,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:54:19,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:54:19,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:54:19,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:54:19,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:54:19,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:54:19,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:54:19,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:54:19,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:54:19,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:54:19,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:54:19,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:54:19,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:54:19,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:54:19,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:54:19,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:54:19,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:54:19,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:54:19,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:54:19,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:54:19,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:54:19,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:54:19,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:54:19,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:54:19,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:54:19,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:54:19,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:54:19,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:54:19,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:54:19,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:54:19,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:54:19,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:54:19,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:54:19,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:54:19,580 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:54:19,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:54:19,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:54:19,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:54:19,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:54:19,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:54:19,581 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:54:19,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:54:19,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:54:19,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:54:19,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:54:19,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:54:19,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:54:19,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:54:19,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:54:19,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:54:19,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:54:19,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:54:19,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:54:19,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:54:19,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:54:19,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:54:19,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:54:19,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:54:19,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:54:19,585 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:54:19,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:54:19,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:54:19,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:54:19,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2780fc0b078cd95366c58e63c05c4168e73cfd193d5f7dd189d6eaa3d38deb42 [2021-11-04 09:54:19,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:54:19,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:54:19,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:54:19,810 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:54:19,811 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:54:19,812 INFO L432 ainManager$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 [2021-11-04 09:54:19,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b698ead42/378ae0cee33e454f9452b977f0d9922c/FLAG7e469b979 [2021-11-04 09:54:20,557 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:54:20,558 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 [2021-11-04 09:54:20,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b698ead42/378ae0cee33e454f9452b977f0d9922c/FLAG7e469b979 [2021-11-04 09:54:20,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b698ead42/378ae0cee33e454f9452b977f0d9922c [2021-11-04 09:54:20,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:54:20,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:54:20,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:54:20,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:54:20,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:54:20,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:54:20" (1/1) ... [2021-11-04 09:54:20,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05afe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:20, skipping insertion in model container [2021-11-04 09:54:20,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:54:20" (1/1) ... [2021-11-04 09:54:20,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:54:21,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:54:23,622 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] [2021-11-04 09:54:23,624 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] [2021-11-04 09:54:23,625 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] [2021-11-04 09:54:23,625 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] [2021-11-04 09:54:23,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:54:23,698 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:54:24,082 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] [2021-11-04 09:54:24,082 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] [2021-11-04 09:54:24,083 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] [2021-11-04 09:54:24,083 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] [2021-11-04 09:54:24,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:54:24,258 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:54:24,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24 WrapperNode [2021-11-04 09:54:24,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:54:24,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:54:24,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:54:24,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:54:24,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:24,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:25,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:54:25,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:54:25,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:54:25,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:54:25,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:25,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:26,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:26,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:27,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:27,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:27,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:27,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:54:27,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:54:27,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:54:27,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:54:27,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (1/1) ... [2021-11-04 09:54:27,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:54:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:54:27,938 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) [2021-11-04 09:54:27,969 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 [2021-11-04 09:54:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:54:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:54:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-04 09:54:27,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-04 09:54:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:54:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:54:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:54:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_set_device_state [2021-11-04 09:54:27,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_set_device_state [2021-11-04 09:54:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:54:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:54:27,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:54:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:54:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:54:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:54:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:54:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:54:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_init_registers [2021-11-04 09:54:27,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_init_registers [2021-11-04 09:54:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:54:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_enable_radio [2021-11-04 09:54:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_enable_radio [2021-11-04 09:54:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:54:38,999 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:54:38,999 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 09:54:38,999 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-04 09:54:38,999 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-04 09:54:39,000 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-04 09:54:39,000 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:54:39,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:54:39,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:54:39,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:54:39,037 INFO L299 CfgBuilder]: Removed 10683 assume(true) statements. [2021-11-04 09:54:39,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:54:39 BoogieIcfgContainer [2021-11-04 09:54:39,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:54:39,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:54:39,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:54:39,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:54:39,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:54:20" (1/3) ... [2021-11-04 09:54:39,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e2e119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:54:39, skipping insertion in model container [2021-11-04 09:54:39,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:54:24" (2/3) ... [2021-11-04 09:54:39,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e2e119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:54:39, skipping insertion in model container [2021-11-04 09:54:39,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:54:39" (3/3) ... [2021-11-04 09:54:39,049 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-04 09:54:39,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:54:39,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 156 error locations. [2021-11-04 09:54:39,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:54:39,104 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 [2021-11-04 09:54:39,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 156 error locations. [2021-11-04 09:54:39,202 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) [2021-11-04 09:54:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-04 09:54:39,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:54:39,223 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] [2021-11-04 09:54:39,223 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)] === [2021-11-04 09:54:39,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:54:39,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1921148247, now seen corresponding path program 1 times [2021-11-04 09:54:39,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:54:39,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782297033] [2021-11-04 09:54:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:54:39,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:54:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:54:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:54:39,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:54:39,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782297033] [2021-11-04 09:54:39,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782297033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:54:39,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:54:39,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:54:39,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591500337] [2021-11-04 09:54:39,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:54:39,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:54:39,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:54:39,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:54:39,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:54:39,911 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) [2021-11-04 09:54:43,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:45,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:47,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:48,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:50,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:54,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:57,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:02,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:04,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:06,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:10,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:13,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:16,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:24,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:34,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:55:46,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:02,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:06,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:09,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:12,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:16,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:22,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:31,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:56:31,001 INFO L93 Difference]: Finished difference Result 29326 states and 40936 transitions. [2021-11-04 09:56:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:56:31,006 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 [2021-11-04 09:56:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:56:31,082 INFO L225 Difference]: With dead ends: 29326 [2021-11-04 09:56:31,082 INFO L226 Difference]: Without dead ends: 19050 [2021-11-04 09:56:31,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:56:31,111 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 12058 mSDsluCounter, 14486 mSDsCounter, 0 mSdLazyCounter, 28580 mSolverCounterSat, 7 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96605.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12059 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 28602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.49ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28580 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109775.00ms IncrementalHoareTripleChecker+Time [2021-11-04 09:56:31,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12059 Valid, 472 Invalid, 28602 Unknown, 0 Unchecked, 78.49ms Time], IncrementalHoareTripleChecker [7 Valid, 28580 Invalid, 15 Unknown, 0 Unchecked, 109775.00ms Time] [2021-11-04 09:56:31,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19050 states. [2021-11-04 09:56:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19050 to 18638. [2021-11-04 09:56:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18638 states, 18460 states have (on average 1.3890574214517877) internal successors, (25642), 18615 states have internal predecessors, (25642), 15 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-04 09:56:31,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18638 states to 18638 states and 25672 transitions. [2021-11-04 09:56:31,539 INFO L78 Accepts]: Start accepts. Automaton has 18638 states and 25672 transitions. Word has length 204 [2021-11-04 09:56:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:56:31,542 INFO L470 AbstractCegarLoop]: Abstraction has 18638 states and 25672 transitions. [2021-11-04 09:56:31,542 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) [2021-11-04 09:56:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 18638 states and 25672 transitions. [2021-11-04 09:56:31,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-04 09:56:31,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:56:31,550 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] [2021-11-04 09:56:31,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:56:31,551 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)] === [2021-11-04 09:56:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:56:31,553 INFO L85 PathProgramCache]: Analyzing trace with hash -643378217, now seen corresponding path program 1 times [2021-11-04 09:56:31,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:56:31,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550381964] [2021-11-04 09:56:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:56:31,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:56:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:56:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:56:31,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:56:31,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550381964] [2021-11-04 09:56:31,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550381964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:56:31,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:56:31,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:56:31,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228190275] [2021-11-04 09:56:31,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:56:31,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:56:31,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:56:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:56:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:56:31,902 INFO L87 Difference]: Start difference. First operand 18638 states and 25672 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) [2021-11-04 09:56:35,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:41,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:45,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:48,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:50,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:53,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:56,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:57,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:56:59,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:00,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:01,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:03,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:14,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:15,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:18,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:20,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:23,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:25,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:32,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:38,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:41,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:51,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:52,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:57:55,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:17,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:20,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:24,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:28,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:37,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:58:50,321 INFO L93 Difference]: Finished difference Result 38713 states and 53262 transitions. [2021-11-04 09:58:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:58:50,322 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 [2021-11-04 09:58:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:58:50,366 INFO L225 Difference]: With dead ends: 38713 [2021-11-04 09:58:50,366 INFO L226 Difference]: Without dead ends: 20575 [2021-11-04 09:58:50,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:58:50,391 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 7089 mSDsluCounter, 13928 mSDsCounter, 0 mSdLazyCounter, 28165 mSolverCounterSat, 15 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115017.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7090 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 28195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.93ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 28165 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137100.28ms IncrementalHoareTripleChecker+Time [2021-11-04 09:58:50,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7090 Valid, 37 Invalid, 28195 Unknown, 0 Unchecked, 71.93ms Time], IncrementalHoareTripleChecker [15 Valid, 28165 Invalid, 15 Unknown, 0 Unchecked, 137100.28ms Time] [2021-11-04 09:58:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20575 states. [2021-11-04 09:58:50,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20575 to 20302. [2021-11-04 09:58:50,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20302 states, 20118 states have (on average 1.3879113231931604) internal successors, (27922), 20273 states have internal predecessors, (27922), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-04 09:58:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20302 states to 20302 states and 27958 transitions. [2021-11-04 09:58:50,745 INFO L78 Accepts]: Start accepts. Automaton has 20302 states and 27958 transitions. Word has length 221 [2021-11-04 09:58:50,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:58:50,747 INFO L470 AbstractCegarLoop]: Abstraction has 20302 states and 27958 transitions. [2021-11-04 09:58:50,747 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) [2021-11-04 09:58:50,747 INFO L276 IsEmpty]: Start isEmpty. Operand 20302 states and 27958 transitions. [2021-11-04 09:58:50,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-04 09:58:50,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:58:50,750 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] [2021-11-04 09:58:50,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:58:50,750 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)] === [2021-11-04 09:58:50,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:58:50,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1231122208, now seen corresponding path program 1 times [2021-11-04 09:58:50,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:58:50,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937572587] [2021-11-04 09:58:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:58:50,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:58:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:58:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:58:51,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:58:51,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937572587] [2021-11-04 09:58:51,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937572587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:58:51,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:58:51,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:58:51,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749506301] [2021-11-04 09:58:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:58:51,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:58:51,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:58:51,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:58:51,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:58:51,096 INFO L87 Difference]: Start difference. First operand 20302 states and 27958 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) [2021-11-04 09:58:54,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:58:57,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:02,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:04,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:07,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:08,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:16,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:20,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:25,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:30,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:32,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:36,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:38,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:47,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:53,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:59:56,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:09,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:11,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:14,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:16,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:35,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:37,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:42,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:00:44,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:01,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:31,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:34,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:37,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:40,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:43,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:52,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:06,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:27,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:02:27,486 INFO L93 Difference]: Finished difference Result 45430 states and 62530 transitions. [2021-11-04 10:02:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:02:27,487 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 [2021-11-04 10:02:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:02:27,537 INFO L225 Difference]: With dead ends: 45430 [2021-11-04 10:02:27,537 INFO L226 Difference]: Without dead ends: 25628 [2021-11-04 10:02:27,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:02:27,564 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 6614 mSDsluCounter, 13928 mSDsCounter, 0 mSdLazyCounter, 34454 mSolverCounterSat, 15 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166518.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6615 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 34486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 95.53ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34454 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 215048.69ms IncrementalHoareTripleChecker+Time [2021-11-04 10:02:27,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6615 Valid, 42 Invalid, 34486 Unknown, 0 Unchecked, 95.53ms Time], IncrementalHoareTripleChecker [15 Valid, 34454 Invalid, 17 Unknown, 0 Unchecked, 215048.69ms Time] [2021-11-04 10:02:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25628 states. [2021-11-04 10:02:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25628 to 25221. [2021-11-04 10:02:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25221 states, 25029 states have (on average 1.3860322026449319) internal successors, (34691), 25184 states have internal predecessors, (34691), 23 states have call successors, (23), 13 states have call predecessors, (23), 13 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-04 10:02:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25221 states to 25221 states and 34737 transitions. [2021-11-04 10:02:27,973 INFO L78 Accepts]: Start accepts. Automaton has 25221 states and 34737 transitions. Word has length 222 [2021-11-04 10:02:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:02:27,974 INFO L470 AbstractCegarLoop]: Abstraction has 25221 states and 34737 transitions. [2021-11-04 10:02:27,974 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) [2021-11-04 10:02:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 25221 states and 34737 transitions. [2021-11-04 10:02:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-04 10:02:27,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:02:27,978 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] [2021-11-04 10:02:27,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:02:27,978 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)] === [2021-11-04 10:02:27,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:02:27,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1729715430, now seen corresponding path program 1 times [2021-11-04 10:02:27,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:02:27,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274420608] [2021-11-04 10:02:27,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:02:27,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:02:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:02:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:02:28,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:02:28,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274420608] [2021-11-04 10:02:28,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274420608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:02:28,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:02:28,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:02:28,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815782238] [2021-11-04 10:02:28,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:02:28,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:02:28,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:02:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:02:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:02:28,219 INFO L87 Difference]: Start difference. First operand 25221 states and 34737 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) [2021-11-04 10:02:32,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:34,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:37,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:45,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:47,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:50,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:02:57,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:07,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:11,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:15,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:24,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:31,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:33,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:36,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:49,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:51,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:54,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:57,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:22,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:27,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:29,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:51,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:55,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:26,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:06:29,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:06:38,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:06:41,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:08,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:30,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:11,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:08:11,885 INFO L93 Difference]: Finished difference Result 58489 states and 80518 transitions. [2021-11-04 10:08:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:08:11,886 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 [2021-11-04 10:08:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:08:11,987 INFO L225 Difference]: With dead ends: 58489 [2021-11-04 10:08:11,987 INFO L226 Difference]: Without dead ends: 38900 [2021-11-04 10:08:12,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:08:12,038 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 8335 mSDsluCounter, 14056 mSDsCounter, 0 mSdLazyCounter, 36445 mSolverCounterSat, 6 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 245903.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8336 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 36472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 118.35ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36445 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 341978.99ms IncrementalHoareTripleChecker+Time [2021-11-04 10:08:12,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8336 Valid, 46 Invalid, 36472 Unknown, 0 Unchecked, 118.35ms Time], IncrementalHoareTripleChecker [6 Valid, 36445 Invalid, 21 Unknown, 0 Unchecked, 341978.99ms Time] [2021-11-04 10:08:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38900 states. [2021-11-04 10:08:12,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38900 to 38440. [2021-11-04 10:08:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38440 states, 38222 states have (on average 1.3858510805295379) internal successors, (52970), 38377 states have internal predecessors, (52970), 40 states have call successors, (40), 22 states have call predecessors, (40), 22 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 10:08:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38440 states to 38440 states and 53050 transitions. [2021-11-04 10:08:12,808 INFO L78 Accepts]: Start accepts. Automaton has 38440 states and 53050 transitions. Word has length 234 [2021-11-04 10:08:12,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:08:12,809 INFO L470 AbstractCegarLoop]: Abstraction has 38440 states and 53050 transitions. [2021-11-04 10:08:12,809 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) [2021-11-04 10:08:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 38440 states and 53050 transitions. [2021-11-04 10:08:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-04 10:08:12,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:08:12,812 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] [2021-11-04 10:08:12,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:08:12,812 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)] === [2021-11-04 10:08:12,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:08:12,813 INFO L85 PathProgramCache]: Analyzing trace with hash -449851752, now seen corresponding path program 1 times [2021-11-04 10:08:12,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:08:12,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463808992] [2021-11-04 10:08:12,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:08:12,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:08:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:08:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:08:13,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:08:13,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463808992] [2021-11-04 10:08:13,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463808992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:08:13,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:08:13,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:08:13,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698601557] [2021-11-04 10:08:13,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:08:13,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:08:13,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:08:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:08:13,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:08:13,057 INFO L87 Difference]: Start difference. First operand 38440 states and 53050 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) [2021-11-04 10:08:17,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:19,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:22,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:43,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:45,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15