./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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.4.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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:58:08,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:58:08,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:58:08,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:58:08,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:58:08,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:58:08,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:58:08,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:58:08,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:58:08,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:58:08,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:58:08,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:58:08,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:58:08,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:58:08,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:58:08,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:58:08,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:58:08,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:58:08,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:58:08,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:58:08,692 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:58:08,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:58:08,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:58:08,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:58:08,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:58:08,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:58:08,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:58:08,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:58:08,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:58:08,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:58:08,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:58:08,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:58:08,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:58:08,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:58:08,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:58:08,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:58:08,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:58:08,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:58:08,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:58:08,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:58:08,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:58:08,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:58:08,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:58:08,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:58:08,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:58:08,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:58:08,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:58:08,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:58:08,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:58:08,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:58:08,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:58:08,747 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:58:08,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:58:08,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:58:08,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:58:08,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:58:08,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:58:08,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:58:08,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:58:08,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:58:08,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:58:08,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:58:08,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:58:08,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:58:08,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:58:08,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:58:08,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:58:08,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:58:08,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:58:08,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:58:08,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:58:08,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:58:08,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:58:08,754 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:58:08,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:58:08,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:58:08,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-07-19 17:58:09,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:58:09,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:58:09,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:58:09,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:58:09,025 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:58:09,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-07-19 17:58:09,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b3c6698/8ceaf8d090ee4a54865ca48ab75ccbf6/FLAGa20d7cf6d [2022-07-19 17:58:09,666 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:58:09,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-07-19 17:58:09,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b3c6698/8ceaf8d090ee4a54865ca48ab75ccbf6/FLAGa20d7cf6d [2022-07-19 17:58:09,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b3c6698/8ceaf8d090ee4a54865ca48ab75ccbf6 [2022-07-19 17:58:09,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:58:09,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:58:09,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:58:09,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:58:09,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:58:09,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:58:09" (1/1) ... [2022-07-19 17:58:09,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20068eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:09, skipping insertion in model container [2022-07-19 17:58:09,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:58:09" (1/1) ... [2022-07-19 17:58:09,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:58:09,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:58:10,152 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.4.c[1868,1881] [2022-07-19 17:58:10,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:58:10,544 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:58:10,559 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.4.c[1868,1881] [2022-07-19 17:58:10,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:58:10,849 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:58:10,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10 WrapperNode [2022-07-19 17:58:10,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:58:10,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:58:10,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:58:10,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:58:10,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:10,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,190 INFO L137 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-07-19 17:58:11,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:58:11,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:58:11,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:58:11,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:58:11,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:58:11,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:58:11,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:58:11,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:58:11,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (1/1) ... [2022-07-19 17:58:11,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:58:11,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:58:11,629 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) [2022-07-19 17:58:11,660 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 [2022-07-19 17:58:11,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-19 17:58:11,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-19 17:58:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-19 17:58:11,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-19 17:58:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 17:58:11,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-19 17:58:11,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-19 17:58:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-19 17:58:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-19 17:58:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-19 17:58:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-19 17:58:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-19 17:58:11,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-19 17:58:11,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-19 17:58:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-19 17:58:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-19 17:58:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-19 17:58:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-19 17:58:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-19 17:58:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-19 17:58:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-19 17:58:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 17:58:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-19 17:58:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-19 17:58:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-19 17:58:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-19 17:58:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-19 17:58:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-19 17:58:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-19 17:58:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-19 17:58:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-19 17:58:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-19 17:58:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-19 17:58:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-19 17:58:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-19 17:58:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-19 17:58:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:58:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-19 17:58:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-19 17:58:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-19 17:58:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-19 17:58:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-19 17:58:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-19 17:58:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-19 17:58:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-19 17:58:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-19 17:58:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-19 17:58:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-19 17:58:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-19 17:58:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-19 17:58:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-19 17:58:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-19 17:58:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-19 17:58:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-19 17:58:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-19 17:58:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-19 17:58:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-19 17:58:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-19 17:58:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-19 17:58:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-19 17:58:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-19 17:58:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-19 17:58:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-19 17:58:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-19 17:58:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-19 17:58:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-19 17:58:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-19 17:58:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-19 17:58:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-19 17:58:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-19 17:58:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-19 17:58:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-19 17:58:11,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-19 17:58:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-19 17:58:11,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-19 17:58:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-19 17:58:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-19 17:58:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-19 17:58:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-19 17:58:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-19 17:58:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-19 17:58:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-19 17:58:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-19 17:58:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-19 17:58:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-19 17:58:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-19 17:58:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-19 17:58:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-19 17:58:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-19 17:58:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:58:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-19 17:58:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-19 17:58:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:58:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:58:12,293 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:58:12,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:58:34,786 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:58:34,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:58:34,805 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-19 17:58:34,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:58:34 BoogieIcfgContainer [2022-07-19 17:58:34,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:58:34,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:58:34,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:58:34,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:58:34,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:58:09" (1/3) ... [2022-07-19 17:58:34,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c43bb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:58:34, skipping insertion in model container [2022-07-19 17:58:34,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:58:10" (2/3) ... [2022-07-19 17:58:34,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c43bb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:58:34, skipping insertion in model container [2022-07-19 17:58:34,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:58:34" (3/3) ... [2022-07-19 17:58:34,818 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-07-19 17:58:34,830 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:58:34,830 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:58:34,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:58:34,911 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@2ec08cba, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7dee9bbe [2022-07-19 17:58:34,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:58:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2022-07-19 17:58:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 17:58:34,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:58:34,940 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] [2022-07-19 17:58:34,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:58:34,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:58:34,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-07-19 17:58:34,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:58:34,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966895503] [2022-07-19 17:58:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:58:34,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms