./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:20:51,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:20:51,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:20:51,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:20:51,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:20:51,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:20:51,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:20:51,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:20:51,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:20:51,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:20:51,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:20:51,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:20:51,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:20:51,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:20:51,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:20:51,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:20:51,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:20:51,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:20:51,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:20:51,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:20:51,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:20:51,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:20:51,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:20:51,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:20:51,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:20:51,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:20:51,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:20:51,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:20:51,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:20:51,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:20:51,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:20:51,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:20:51,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:20:51,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:20:51,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:20:51,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:20:51,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:20:51,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:20:51,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:20:51,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:20:51,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:20:51,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:20:51,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:20:51,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:20:51,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:20:51,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:20:51,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:20:51,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:20:51,957 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:20:51,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:20:51,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:20:51,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:20:51,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:20:51,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:20:51,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:20:51,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:20:51,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:20:51,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:20:51,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:20:51,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:20:51,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:20:51,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:20:51,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:20:51,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:20:51,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:20:51,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:20:51,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:20:51,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:20:51,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:20:51,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:20:51,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:20:51,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2021-11-07 19:20:52,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:20:52,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:20:52,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:20:52,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:20:52,191 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:20:52,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-07 19:20:52,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14af08f84/e32fa7cf6fff40d2b47cd4f45f553e8d/FLAG02ddac83b [2021-11-07 19:20:53,040 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:20:53,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-07 19:20:53,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14af08f84/e32fa7cf6fff40d2b47cd4f45f553e8d/FLAG02ddac83b [2021-11-07 19:20:53,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14af08f84/e32fa7cf6fff40d2b47cd4f45f553e8d [2021-11-07 19:20:53,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:20:53,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:20:53,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:20:53,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:20:53,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:20:53,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:20:53" (1/1) ... [2021-11-07 19:20:53,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbf794e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:53, skipping insertion in model container [2021-11-07 19:20:53,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:20:53" (1/1) ... [2021-11-07 19:20:53,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:20:53,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:20:56,605 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-07 19:20:56,612 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-07 19:20:56,613 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-07 19:20:56,614 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-07 19:20:56,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:20:56,691 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:20:57,076 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-07 19:20:57,077 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-07 19:20:57,077 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-07 19:20:57,078 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-07 19:20:57,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:20:57,278 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:20:57,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57 WrapperNode [2021-11-07 19:20:57,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:20:57,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:20:57,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:20:57,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:20:57,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:20:57,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:01,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:21:01,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:21:01,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:21:01,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:21:01,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:01,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:02,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:02,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:03,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:04,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:04,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:05,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:21:05,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:21:05,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:21:05,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:21:05,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (1/1) ... [2021-11-07 19:21:05,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:21:05,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:21:05,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 19:21:05,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 19:21:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:21:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:21:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:21:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:21:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:21:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:21:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:21:05,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:21:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:21:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:21:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:21:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:21:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:21:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:21:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-07 19:21:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:29:16,277 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 19:29:16,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 19:29:16,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-07 19:29:16,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-07 19:29:16,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-07 19:29:16,279 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 19:29:16,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 19:29:16,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 19:29:16,281 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:29:16,281 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 19:29:16,289 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 19:29:16,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:29:16,367 INFO L299 CfgBuilder]: Removed 17140 assume(true) statements. [2021-11-07 19:29:16,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:16 BoogieIcfgContainer [2021-11-07 19:29:16,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:29:16,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:29:16,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:29:16,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:29:16,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:20:53" (1/3) ... [2021-11-07 19:29:16,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a67a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:29:16, skipping insertion in model container [2021-11-07 19:29:16,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:20:57" (2/3) ... [2021-11-07 19:29:16,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a67a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:29:16, skipping insertion in model container [2021-11-07 19:29:16,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:16" (3/3) ... [2021-11-07 19:29:16,396 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-07 19:29:16,401 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:29:16,401 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2021-11-07 19:29:16,513 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:29:16,522 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 19:29:16,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-11-07 19:29:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 21945 states, 21897 states have (on average 1.4209709092569758) internal successors, (31115), 21944 states have internal predecessors, (31115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 19:29:16,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:29:16,809 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] [2021-11-07 19:29:16,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-07 19:29:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:29:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1894068687, now seen corresponding path program 1 times [2021-11-07 19:29:16,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:29:16,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985077276] [2021-11-07 19:29:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:29:16,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:29:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:29:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:29:18,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:29:18,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985077276] [2021-11-07 19:29:18,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985077276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:29:18,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:29:18,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:29:18,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284779085] [2021-11-07 19:29:18,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:29:18,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:29:18,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:29:18,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:29:18,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:29:18,394 INFO L87 Difference]: Start difference. First operand has 21945 states, 21897 states have (on average 1.4209709092569758) internal successors, (31115), 21944 states have internal predecessors, (31115), 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) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:20,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:29:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:29:22,304 INFO L93 Difference]: Finished difference Result 64874 states and 92113 transitions. [2021-11-07 19:29:22,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:29:22,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2021-11-07 19:29:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:29:22,495 INFO L225 Difference]: With dead ends: 64874 [2021-11-07 19:29:22,496 INFO L226 Difference]: Without dead ends: 41681 [2021-11-07 19:29:22,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:29:22,567 INFO L933 BasicCegarLoop]: 31021 mSDtfsCounter, 30324 mSDsluCounter, 30960 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2617.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30324 SdHoareTripleChecker+Valid, 61981 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 131.90ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2722.88ms IncrementalHoareTripleChecker+Time [2021-11-07 19:29:22,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30324 Valid, 61981 Invalid, 64 Unknown, 0 Unchecked, 131.90ms Time], IncrementalHoareTripleChecker [13 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2722.88ms Time] [2021-11-07 19:29:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41681 states. [2021-11-07 19:29:23,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41681 to 41651. [2021-11-07 19:29:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41651 states, 41603 states have (on average 1.3962694997956877) internal successors, (58089), 41650 states have internal predecessors, (58089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41651 states to 41651 states and 58089 transitions. [2021-11-07 19:29:24,037 INFO L78 Accepts]: Start accepts. Automaton has 41651 states and 58089 transitions. Word has length 126 [2021-11-07 19:29:24,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:29:24,040 INFO L470 AbstractCegarLoop]: Abstraction has 41651 states and 58089 transitions. [2021-11-07 19:29:24,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand 41651 states and 58089 transitions. [2021-11-07 19:29:24,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-07 19:29:24,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:29:24,053 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] [2021-11-07 19:29:24,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:29:24,054 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-07 19:29:24,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:29:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash 901895982, now seen corresponding path program 1 times [2021-11-07 19:29:24,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:29:24,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269547660] [2021-11-07 19:29:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:29:24,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:29:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:29:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:29:24,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:29:24,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269547660] [2021-11-07 19:29:24,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269547660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:29:24,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:29:24,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:29:24,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431058871] [2021-11-07 19:29:24,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:29:24,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:29:24,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:29:24,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:29:24,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:29:24,955 INFO L87 Difference]: Start difference. First operand 41651 states and 58089 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:27,146 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 [] [2021-11-07 19:29:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:29:28,727 INFO L93 Difference]: Finished difference Result 98070 states and 136831 transitions. [2021-11-07 19:29:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:29:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2021-11-07 19:29:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:29:28,913 INFO L225 Difference]: With dead ends: 98070 [2021-11-07 19:29:28,914 INFO L226 Difference]: Without dead ends: 56711 [2021-11-07 19:29:29,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:29:29,008 INFO L933 BasicCegarLoop]: 29316 mSDtfsCounter, 24961 mSDsluCounter, 29268 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2690.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24961 SdHoareTripleChecker+Valid, 58584 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.33ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2851.41ms IncrementalHoareTripleChecker+Time [2021-11-07 19:29:29,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24961 Valid, 58584 Invalid, 78 Unknown, 0 Unchecked, 47.33ms Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2851.41ms Time] [2021-11-07 19:29:29,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56711 states. [2021-11-07 19:29:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56711 to 56535. [2021-11-07 19:29:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56535 states, 56487 states have (on average 1.3965868252872342) internal successors, (78889), 56534 states have internal predecessors, (78889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56535 states to 56535 states and 78889 transitions. [2021-11-07 19:29:30,592 INFO L78 Accepts]: Start accepts. Automaton has 56535 states and 78889 transitions. Word has length 151 [2021-11-07 19:29:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:29:30,594 INFO L470 AbstractCegarLoop]: Abstraction has 56535 states and 78889 transitions. [2021-11-07 19:29:30,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:29:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 56535 states and 78889 transitions. [2021-11-07 19:29:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-07 19:29:30,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:29:30,603 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] [2021-11-07 19:29:30,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:29:30,603 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-07 19:29:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:29:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2126457933, now seen corresponding path program 1 times [2021-11-07 19:29:30,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:29:30,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892706752] [2021-11-07 19:29:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:29:30,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:29:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat