./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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.2-1.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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:22:44,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:22:44,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:22:44,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:22:44,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:22:44,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:22:44,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:22:44,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:22:44,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:22:44,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:22:44,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:22:44,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:22:44,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:22:44,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:22:44,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:22:44,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:22:44,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:22:44,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:22:44,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:22:44,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:22:44,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:22:44,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:22:44,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:22:44,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:22:44,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:22:44,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:22:44,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:22:44,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:22:44,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:22:44,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:22:44,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:22:44,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:22:44,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:22:44,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:22:44,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:22:44,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:22:44,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:22:44,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:22:44,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:22:44,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:22:44,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:22:44,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:22:44,929 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:22:44,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:22:44,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:22:44,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:22:44,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:22:44,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:22:44,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:22:44,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:22:44,932 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:22:44,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:22:44,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:22:44,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:22:44,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:22:44,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:22:44,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:22:44,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:22:44,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:22:44,935 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:22:44,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:22:44,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:22:44,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:22:44,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:22:44,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:22:44,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:22:44,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:22:44,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:22:44,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:22:44,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:22:44,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:22:44,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:22:44,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:22:44,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:22:44,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:22:44,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:22:44,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2021-12-15 11:22:45,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:22:45,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:22:45,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:22:45,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:22:45,236 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:22:45,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2021-12-15 11:22:45,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec6cc08a/41dd792820c54b198efeee8dfca4cb78/FLAG2a3a08805 [2021-12-15 11:22:45,991 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:22:45,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2021-12-15 11:22:46,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec6cc08a/41dd792820c54b198efeee8dfca4cb78/FLAG2a3a08805 [2021-12-15 11:22:46,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec6cc08a/41dd792820c54b198efeee8dfca4cb78 [2021-12-15 11:22:46,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:22:46,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:22:46,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:22:46,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:22:46,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:22:46,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:22:46" (1/1) ... [2021-12-15 11:22:46,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f58ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:46, skipping insertion in model container [2021-12-15 11:22:46,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:22:46" (1/1) ... [2021-12-15 11:22:46,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:22:46,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:22:46,616 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.2-1.c[1871,1884] [2021-12-15 11:22:47,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:22:47,247 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:22:47,263 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.2-1.c[1871,1884] [2021-12-15 11:22:47,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:22:47,517 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:22:47,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47 WrapperNode [2021-12-15 11:22:47,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:22:47,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:22:47,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:22:47,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:22:47,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:47,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:47,848 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2021-12-15 11:22:47,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:22:47,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:22:47,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:22:47,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:22:47,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:47,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:47,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:47,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:48,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:48,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:48,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:48,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:22:48,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:22:48,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:22:48,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:22:48,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (1/1) ... [2021-12-15 11:22:48,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:22:48,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:22:48,255 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) [2021-12-15 11:22:48,267 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 [2021-12-15 11:22:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-15 11:22:48,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-15 11:22:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-15 11:22:48,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-15 11:22:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 11:22:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-15 11:22:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-15 11:22:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-15 11:22:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-15 11:22:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-15 11:22:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-15 11:22:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-15 11:22:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-15 11:22:48,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-15 11:22:48,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-15 11:22:48,305 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-15 11:22:48,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-15 11:22:48,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-15 11:22:48,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-15 11:22:48,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-15 11:22:48,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-15 11:22:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 11:22:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-15 11:22:48,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-15 11:22:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-15 11:22:48,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-15 11:22:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-15 11:22:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-15 11:22:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-15 11:22:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-15 11:22:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-15 11:22:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-15 11:22:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-15 11:22:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-15 11:22:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-15 11:22:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-15 11:22:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:22:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-15 11:22:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-15 11:22:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-15 11:22:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-15 11:22:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-15 11:22:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-15 11:22:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-15 11:22:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-15 11:22:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-15 11:22:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-15 11:22:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-15 11:22:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-15 11:22:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-15 11:22:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-15 11:22:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-15 11:22:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-15 11:22:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-15 11:22:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-15 11:22:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-15 11:22:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-15 11:22:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-15 11:22:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-15 11:22:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-15 11:22:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-15 11:22:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-15 11:22:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-15 11:22:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-15 11:22:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-15 11:22:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-15 11:22:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-15 11:22:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-15 11:22:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-15 11:22:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-15 11:22:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-15 11:22:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-15 11:22:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-15 11:22:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-15 11:22:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-15 11:22:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-15 11:22:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-15 11:22:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-15 11:22:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-15 11:22:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-15 11:22:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-15 11:22:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-15 11:22:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-15 11:22:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-15 11:22:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-15 11:22:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-15 11:22:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-15 11:22:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-15 11:22:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-15 11:22:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:22:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-15 11:22:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-15 11:22:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:22:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:22:48,987 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:22:48,989 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:23:03,112 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:23:03,147 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:23:03,147 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 11:23:03,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:23:03 BoogieIcfgContainer [2021-12-15 11:23:03,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:23:03,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:23:03,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:23:03,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:23:03,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:22:46" (1/3) ... [2021-12-15 11:23:03,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2f86cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:23:03, skipping insertion in model container [2021-12-15 11:23:03,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:47" (2/3) ... [2021-12-15 11:23:03,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2f86cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:23:03, skipping insertion in model container [2021-12-15 11:23:03,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:23:03" (3/3) ... [2021-12-15 11:23:03,161 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2021-12-15 11:23:03,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:23:03,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:23:03,228 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:23:03,238 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 [2021-12-15 11:23:03,239 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:23:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2021-12-15 11:23:03,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-15 11:23:03,336 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:23:03,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:23:03,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:23:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:23:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2021-12-15 11:23:03,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:23:03,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963326116] [2021-12-15 11:23:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:23:03,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms