./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/seq-mthreaded/rekh_ctm.2-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:12:22,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:12:22,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:12:22,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:12:22,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:12:22,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:12:22,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:12:22,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:12:22,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:12:22,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:12:22,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:12:22,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:12:22,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:12:22,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:12:22,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:12:22,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:12:22,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:12:22,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:12:22,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:12:22,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:12:22,854 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:12:22,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:12:22,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:12:22,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:12:22,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:12:22,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:12:22,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:12:22,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:12:22,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:12:22,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:12:22,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:12:22,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:12:22,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:12:22,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:12:22,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:12:22,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:12:22,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:12:22,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:12:22,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:12:22,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:12:22,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:12:22,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:12:22,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:12:22,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:12:22,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:12:22,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:12:22,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:12:22,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:12:22,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:12:22,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:12:22,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:12:22,907 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:12:22,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:12:22,908 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:12:22,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:12:22,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:12:22,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:12:22,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:12:22,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:12:22,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:12:22,909 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:12:22,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:12:22,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:12:22,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:12:22,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:12:22,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:12:22,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:12:22,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:12:22,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:12:22,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:12:22,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:12:22,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:12:22,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:12:22,912 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:12:22,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:12:22,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:12:22,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-07-22 18:12:23,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:12:23,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:12:23,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:12:23,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:12:23,168 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:12:23,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-07-22 18:12:23,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfdc5436/a27992159e4640ebae53a02bb6935d48/FLAGfff708800 [2022-07-22 18:12:23,824 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:12:23,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-07-22 18:12:23,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfdc5436/a27992159e4640ebae53a02bb6935d48/FLAGfff708800 [2022-07-22 18:12:24,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfdc5436/a27992159e4640ebae53a02bb6935d48 [2022-07-22 18:12:24,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:12:24,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:12:24,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:12:24,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:12:24,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:12:24,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:12:24" (1/1) ... [2022-07-22 18:12:24,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20492fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:24, skipping insertion in model container [2022-07-22 18:12:24,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:12:24" (1/1) ... [2022-07-22 18:12:24,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:12:24,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:12:24,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-07-22 18:12:24,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:12:24,805 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:12:24,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-07-22 18:12:25,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:12:25,132 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:12:25,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25 WrapperNode [2022-07-22 18:12:25,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:12:25,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:12:25,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:12:25,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:12:25,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,443 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-07-22 18:12:25,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:12:25,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:12:25,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:12:25,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:12:25,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:12:25,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:12:25,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:12:25,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:12:25,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (1/1) ... [2022-07-22 18:12:25,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:12:25,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:12:25,889 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) [2022-07-22 18:12:25,919 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 [2022-07-22 18:12:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-22 18:12:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-22 18:12:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-22 18:12:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-22 18:12:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 18:12:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-22 18:12:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-22 18:12:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-22 18:12:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-22 18:12:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-22 18:12:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-22 18:12:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-22 18:12:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-22 18:12:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-22 18:12:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-22 18:12:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-22 18:12:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-22 18:12:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-22 18:12:25,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-22 18:12:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-22 18:12:25,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-22 18:12:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 18:12:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-22 18:12:25,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-22 18:12:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-22 18:12:25,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-22 18:12:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-22 18:12:25,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-22 18:12:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-22 18:12:25,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-22 18:12:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-22 18:12:25,947 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-22 18:12:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-22 18:12:25,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-22 18:12:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-22 18:12:25,947 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-22 18:12:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:12:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-22 18:12:25,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-22 18:12:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-22 18:12:25,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-22 18:12:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-22 18:12:25,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-22 18:12:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-22 18:12:25,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-22 18:12:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-22 18:12:25,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-22 18:12:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-22 18:12:25,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-22 18:12:25,950 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-22 18:12:25,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-22 18:12:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-22 18:12:25,951 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-22 18:12:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-22 18:12:25,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-22 18:12:25,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-22 18:12:25,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-22 18:12:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-22 18:12:25,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-22 18:12:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-22 18:12:25,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-22 18:12:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-22 18:12:25,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-22 18:12:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-22 18:12:25,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-22 18:12:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-22 18:12:25,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-22 18:12:25,955 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-22 18:12:25,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-22 18:12:25,955 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-22 18:12:25,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-22 18:12:25,955 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-22 18:12:25,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-22 18:12:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-22 18:12:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-22 18:12:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-22 18:12:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-22 18:12:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-22 18:12:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-22 18:12:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-22 18:12:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-22 18:12:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-22 18:12:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-22 18:12:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-22 18:12:25,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-22 18:12:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-22 18:12:25,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-22 18:12:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-22 18:12:25,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-22 18:12:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-22 18:12:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-22 18:12:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:12:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-22 18:12:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-22 18:12:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:12:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:12:26,606 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:12:26,607 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:12:40,953 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:12:40,988 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:12:40,988 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 18:12:40,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:12:40 BoogieIcfgContainer [2022-07-22 18:12:40,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:12:40,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:12:41,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:12:41,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:12:41,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:12:24" (1/3) ... [2022-07-22 18:12:41,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170272a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:12:41, skipping insertion in model container [2022-07-22 18:12:41,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:25" (2/3) ... [2022-07-22 18:12:41,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170272a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:12:41, skipping insertion in model container [2022-07-22 18:12:41,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:12:40" (3/3) ... [2022-07-22 18:12:41,009 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-07-22 18:12:41,028 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:12:41,029 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 18:12:41,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:12:41,156 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@669d1596, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b7bfd53 [2022-07-22 18:12:41,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 18:12:41,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2022-07-22 18:12:41,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-22 18:12:41,193 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:12:41,196 INFO L195 NwaCegarLoop]: 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] [2022-07-22 18:12:41,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 18:12:41,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:12:41,204 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2022-07-22 18:12:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:12:41,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566708886] [2022-07-22 18:12:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:12:41,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms