./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-hostap-hostap.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.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 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:48:23,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:48:23,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:48:23,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:48:23,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:48:23,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:48:23,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:48:23,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:48:23,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:48:23,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:48:23,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:48:23,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:48:23,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:48:23,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:48:23,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:48:23,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:48:23,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:48:23,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:48:23,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:48:23,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:48:23,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:48:23,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:48:23,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:48:23,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:48:23,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:48:23,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:48:23,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:48:23,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:48:23,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:48:23,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:48:23,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:48:23,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:48:23,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:48:23,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:48:23,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:48:23,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:48:23,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:48:23,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:48:23,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:48:23,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:48:23,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:48:23,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:48:23,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:48:23,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:48:23,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:48:23,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:48:23,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:48:23,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:48:23,915 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:48:23,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:48:23,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:48:23,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:48:23,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:48:23,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:48:23,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:48:23,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:48:23,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:48:23,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:48:23,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:48:23,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:48:23,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:48:23,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:48:23,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:48:23,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:48:23,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:48:23,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:48:23,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:48:23,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:48:23,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:48:23,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:48:23,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:48:23,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d [2021-11-06 20:48:24,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:48:24,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:48:24,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:48:24,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:48:24,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:48:24,130 INFO L432 ainManager$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-hostap-hostap.cil.i [2021-11-06 20:48:24,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d498143a/23b8057046d94ba7a68d35e6bfac292a/FLAG1c53815c6 [2021-11-06 20:48:25,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:48:25,045 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-hostap-hostap.cil.i [2021-11-06 20:48:25,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d498143a/23b8057046d94ba7a68d35e6bfac292a/FLAG1c53815c6 [2021-11-06 20:48:25,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d498143a/23b8057046d94ba7a68d35e6bfac292a [2021-11-06 20:48:25,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:48:25,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:48:25,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:48:25,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:48:25,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:48:25,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:48:25" (1/1) ... [2021-11-06 20:48:25,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad264e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:25, skipping insertion in model container [2021-11-06 20:48:25,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:48:25" (1/1) ... [2021-11-06 20:48:25,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:48:25,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:48:33,464 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-hostap-hostap.cil.i[892113,892126] [2021-11-06 20:48:33,466 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-hostap-hostap.cil.i[892282,892295] [2021-11-06 20:48:33,467 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-hostap-hostap.cil.i[892449,892462] [2021-11-06 20:48:33,467 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-hostap-hostap.cil.i[892617,892630] [2021-11-06 20:48:33,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:48:33,570 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:48:34,655 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-hostap-hostap.cil.i[892113,892126] [2021-11-06 20:48:34,656 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-hostap-hostap.cil.i[892282,892295] [2021-11-06 20:48:34,657 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-hostap-hostap.cil.i[892449,892462] [2021-11-06 20:48:34,657 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-hostap-hostap.cil.i[892617,892630] [2021-11-06 20:48:34,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:48:34,989 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:48:34,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34 WrapperNode [2021-11-06 20:48:34,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:48:34,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:48:34,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:48:34,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:48:34,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:35,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:36,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:48:36,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:48:36,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:48:36,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:48:36,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:36,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:37,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:37,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:37,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:38,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:38,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:38,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:48:38,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:48:38,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:48:38,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:48:38,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (1/1) ... [2021-11-06 20:48:38,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:48:38,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:48:38,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 20:48:38,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 20:48:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_free_data [2021-11-06 20:48:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_free_data [2021-11-06 20:48:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 20:48:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:48:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:48:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:48:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:48:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure ap_free_sta [2021-11-06 20:48:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_free_sta [2021-11-06 20:48:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_open [2021-11-06 20:48:38,578 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_open [2021-11-06 20:48:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:48:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:48:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:48:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_close [2021-11-06 20:48:38,578 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_close [2021-11-06 20:48:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 20:48:38,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 20:48:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:48:38,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:48:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:48:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:48:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_tx_timeout [2021-11-06 20:48:38,579 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_tx_timeout [2021-11-06 20:48:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:48:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 20:50:56,419 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#9: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#22: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#21: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,422 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#24: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#23: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#20: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#19: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,423 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#18: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#17: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 20:50:56,425 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:50:56,425 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 20:50:56,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:50:56,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:50:56,941 INFO L299 CfgBuilder]: Removed 13871 assume(true) statements. [2021-11-06 20:50:56,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:50:56 BoogieIcfgContainer [2021-11-06 20:50:56,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:50:56,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:50:56,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:50:56,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:50:56,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:48:25" (1/3) ... [2021-11-06 20:50:56,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474c09c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:50:56, skipping insertion in model container [2021-11-06 20:50:56,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:48:34" (2/3) ... [2021-11-06 20:50:56,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474c09c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:50:56, skipping insertion in model container [2021-11-06 20:50:56,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:50:56" (3/3) ... [2021-11-06 20:50:56,956 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-06 20:50:56,959 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:50:56,959 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 270 error locations. [2021-11-06 20:50:57,021 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:50:57,026 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 20:50:57,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 270 error locations. [2021-11-06 20:50:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 14821 states, 14512 states have (on average 1.3831312017640573) internal successors, (20072), 14785 states have internal predecessors, (20072), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-06 20:50:57,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-06 20:50:57,206 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:50:57,207 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:50:57,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-06 20:50:57,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:50:57,212 INFO L85 PathProgramCache]: Analyzing trace with hash 252020228, now seen corresponding path program 1 times [2021-11-06 20:50:57,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:50:57,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031016136] [2021-11-06 20:50:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:50:57,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:50:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:50:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:50:58,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:50:58,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031016136] [2021-11-06 20:50:58,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031016136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:50:58,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:50:58,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:50:58,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424140339] [2021-11-06 20:50:58,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:50:58,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:50:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:50:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:50:58,969 INFO L87 Difference]: Start difference. First operand has 14821 states, 14512 states have (on average 1.3831312017640573) internal successors, (20072), 14785 states have internal predecessors, (20072), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:02,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:51:02,178 INFO L93 Difference]: Finished difference Result 41272 states and 56312 transitions. [2021-11-06 20:51:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:51:02,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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 446 [2021-11-06 20:51:02,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:51:02,297 INFO L225 Difference]: With dead ends: 41272 [2021-11-06 20:51:02,297 INFO L226 Difference]: Without dead ends: 25636 [2021-11-06 20:51:02,354 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:02,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25636 states. [2021-11-06 20:51:02,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25636 to 25180. [2021-11-06 20:51:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25180 states, 24832 states have (on average 1.313466494845361) internal successors, (32616), 25109 states have internal predecessors, (32616), 64 states have call successors, (64), 14 states have call predecessors, (64), 14 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-06 20:51:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25180 states to 25180 states and 32744 transitions. [2021-11-06 20:51:02,987 INFO L78 Accepts]: Start accepts. Automaton has 25180 states and 32744 transitions. Word has length 446 [2021-11-06 20:51:02,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:51:02,989 INFO L470 AbstractCegarLoop]: Abstraction has 25180 states and 32744 transitions. [2021-11-06 20:51:02,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 25180 states and 32744 transitions. [2021-11-06 20:51:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-06 20:51:02,998 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:51:02,998 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:51:02,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:51:02,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-06 20:51:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:51:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash 659188358, now seen corresponding path program 1 times [2021-11-06 20:51:02,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:51:02,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151050678] [2021-11-06 20:51:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:51:03,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:51:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:51:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:51:04,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:51:04,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151050678] [2021-11-06 20:51:04,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151050678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:51:04,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:51:04,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:51:04,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184908884] [2021-11-06 20:51:04,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:51:04,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:51:04,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:51:04,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:04,014 INFO L87 Difference]: Start difference. First operand 25180 states and 32744 transitions. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:51:07,022 INFO L93 Difference]: Finished difference Result 57492 states and 74818 transitions. [2021-11-06 20:51:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:51:07,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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 461 [2021-11-06 20:51:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:51:07,168 INFO L225 Difference]: With dead ends: 57492 [2021-11-06 20:51:07,176 INFO L226 Difference]: Without dead ends: 33468 [2021-11-06 20:51:07,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33468 states. [2021-11-06 20:51:07,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33468 to 32912. [2021-11-06 20:51:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32912 states, 32529 states have (on average 1.315718282148237) internal successors, (42799), 32810 states have internal predecessors, (42799), 92 states have call successors, (92), 21 states have call predecessors, (92), 21 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2021-11-06 20:51:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32912 states to 32912 states and 42983 transitions. [2021-11-06 20:51:08,030 INFO L78 Accepts]: Start accepts. Automaton has 32912 states and 42983 transitions. Word has length 461 [2021-11-06 20:51:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:51:08,030 INFO L470 AbstractCegarLoop]: Abstraction has 32912 states and 42983 transitions. [2021-11-06 20:51:08,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 32912 states and 42983 transitions. [2021-11-06 20:51:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-11-06 20:51:08,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:51:08,039 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:51:08,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:51:08,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr189ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-06 20:51:08,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:51:08,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2024045494, now seen corresponding path program 1 times [2021-11-06 20:51:08,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:51:08,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566742800] [2021-11-06 20:51:08,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:51:08,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:51:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:51:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:51:09,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:51:09,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566742800] [2021-11-06 20:51:09,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566742800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:51:09,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:51:09,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:51:09,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762518117] [2021-11-06 20:51:09,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:51:09,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:51:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:51:09,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:09,311 INFO L87 Difference]: Start difference. First operand 32912 states and 42983 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:51:12,726 INFO L93 Difference]: Finished difference Result 96223 states and 126120 transitions. [2021-11-06 20:51:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:51:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 462 [2021-11-06 20:51:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:51:12,917 INFO L225 Difference]: With dead ends: 96223 [2021-11-06 20:51:12,918 INFO L226 Difference]: Without dead ends: 64467 [2021-11-06 20:51:13,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:13,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64467 states. [2021-11-06 20:51:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64467 to 63677. [2021-11-06 20:51:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63677 states, 63181 states have (on average 1.3211725043921432) internal successors, (83473), 63474 states have internal predecessors, (83473), 184 states have call successors, (184), 42 states have call predecessors, (184), 42 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2021-11-06 20:51:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63677 states to 63677 states and 83841 transitions. [2021-11-06 20:51:14,500 INFO L78 Accepts]: Start accepts. Automaton has 63677 states and 83841 transitions. Word has length 462 [2021-11-06 20:51:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:51:14,501 INFO L470 AbstractCegarLoop]: Abstraction has 63677 states and 83841 transitions. [2021-11-06 20:51:14,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 63677 states and 83841 transitions. [2021-11-06 20:51:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-11-06 20:51:14,509 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:51:14,509 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:51:14,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:51:14,509 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr191ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-06 20:51:14,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:51:14,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1754176242, now seen corresponding path program 1 times [2021-11-06 20:51:14,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:51:14,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233455519] [2021-11-06 20:51:14,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:51:14,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:51:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:51:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:51:15,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:51:15,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233455519] [2021-11-06 20:51:15,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233455519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:51:15,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:51:15,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:51:15,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271849898] [2021-11-06 20:51:15,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:51:15,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:51:15,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:51:15,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:15,544 INFO L87 Difference]: Start difference. First operand 63677 states and 83841 transitions. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:19,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:51:19,871 INFO L93 Difference]: Finished difference Result 188193 states and 248297 transitions. [2021-11-06 20:51:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:51:19,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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 463 [2021-11-06 20:51:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:51:20,269 INFO L225 Difference]: With dead ends: 188193 [2021-11-06 20:51:20,269 INFO L226 Difference]: Without dead ends: 125672 [2021-11-06 20:51:20,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125672 states. [2021-11-06 20:51:22,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125672 to 124898. [2021-11-06 20:51:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124898 states, 124176 states have (on average 1.3239837005540522) internal successors, (164407), 124493 states have internal predecessors, (164407), 368 states have call successors, (368), 84 states have call predecessors, (368), 84 states have return successors, (368), 356 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-06 20:51:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124898 states to 124898 states and 165143 transitions. [2021-11-06 20:51:23,340 INFO L78 Accepts]: Start accepts. Automaton has 124898 states and 165143 transitions. Word has length 463 [2021-11-06 20:51:23,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:51:23,340 INFO L470 AbstractCegarLoop]: Abstraction has 124898 states and 165143 transitions. [2021-11-06 20:51:23,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:51:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand 124898 states and 165143 transitions. [2021-11-06 20:51:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2021-11-06 20:51:23,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:51:23,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:51:23,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 20:51:23,355 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr193ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-06 20:51:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:51:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 396532308, now seen corresponding path program 1 times [2021-11-06 20:51:23,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:51:23,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280890094] [2021-11-06 20:51:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:51:23,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:51:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:51:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:51:24,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:51:24,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280890094] [2021-11-06 20:51:24,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280890094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:51:24,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:51:24,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:51:24,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331848727] [2021-11-06 20:51:24,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:51:24,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:51:24,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:51:24,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:51:24,348 INFO L87 Difference]: Start difference. First operand 124898 states and 165143 transitions. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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)