./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 6c24879c 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-?-6c24879 [2022-07-12 06:53:22,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:53:22,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:53:22,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:53:22,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:53:22,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:53:22,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:53:22,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:53:22,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:53:22,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:53:22,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:53:22,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:53:22,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:53:22,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:53:22,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:53:22,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:53:22,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:53:22,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:53:22,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:53:22,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:53:22,333 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:53:22,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:53:22,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:53:22,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:53:22,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:53:22,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:53:22,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:53:22,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:53:22,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:53:22,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:53:22,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:53:22,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:53:22,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:53:22,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:53:22,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:53:22,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:53:22,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:53:22,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:53:22,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:53:22,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:53:22,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:53:22,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:53:22,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:53:22,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:53:22,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:53:22,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:53:22,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:53:22,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:53:22,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:53:22,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:53:22,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:53:22,380 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:53:22,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:53:22,381 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:53:22,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:53:22,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:53:22,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:53:22,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:53:22,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:53:22,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:53:22,382 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:53:22,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:53:22,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:53:22,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:53:22,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:53:22,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:53:22,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:53:22,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:22,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:53:22,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:53:22,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:53:22,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:53:22,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:53:22,384 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:53:22,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:53:22,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:53:22,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-07-12 06:53:22,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:53:22,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:53:22,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:53:22,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:53:22,618 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:53:22,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-07-12 06:53:22,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30b05da0/9d3ae8c190d04021a17b8362522d2958/FLAG0406e16cf [2022-07-12 06:53:23,158 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:53:23,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-07-12 06:53:23,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30b05da0/9d3ae8c190d04021a17b8362522d2958/FLAG0406e16cf [2022-07-12 06:53:23,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30b05da0/9d3ae8c190d04021a17b8362522d2958 [2022-07-12 06:53:23,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:53:23,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:53:23,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:23,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:53:23,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:53:23,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:23" (1/1) ... [2022-07-12 06:53:23,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f32b7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:23, skipping insertion in model container [2022-07-12 06:53:23,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:23" (1/1) ... [2022-07-12 06:53:23,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:53:23,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:53:23,689 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] [2022-07-12 06:53:24,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:24,114 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:53:24,122 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] [2022-07-12 06:53:24,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:24,358 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:53:24,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24 WrapperNode [2022-07-12 06:53:24,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:24,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:24,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:53:24,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:53:24,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,668 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-07-12 06:53:24,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:24,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:53:24,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:53:24,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:53:24,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:24,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:25,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:53:25,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:53:25,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:53:25,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:53:25,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (1/1) ... [2022-07-12 06:53:25,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:25,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:53:25,079 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) [2022-07-12 06:53:25,174 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 [2022-07-12 06:53:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-12 06:53:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-12 06:53:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-12 06:53:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-12 06:53:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 06:53:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-12 06:53:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-12 06:53:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-12 06:53:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-12 06:53:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-12 06:53:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-12 06:53:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-12 06:53:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-12 06:53:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 06:53:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-12 06:53:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-12 06:53:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-12 06:53:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-12 06:53:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-12 06:53:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-12 06:53:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-12 06:53:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-12 06:53:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-12 06:53:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-12 06:53:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-12 06:53:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-12 06:53:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-12 06:53:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-12 06:53:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:53:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-12 06:53:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-12 06:53:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-12 06:53:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-12 06:53:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-12 06:53:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-12 06:53:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-12 06:53:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-12 06:53:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-12 06:53:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-12 06:53:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-12 06:53:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-12 06:53:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-12 06:53:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-12 06:53:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-12 06:53:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-12 06:53:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-12 06:53:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-12 06:53:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-12 06:53:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-12 06:53:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-12 06:53:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-12 06:53:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-12 06:53:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-12 06:53:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-12 06:53:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-12 06:53:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-12 06:53:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-12 06:53:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-12 06:53:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-12 06:53:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-12 06:53:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-12 06:53:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-12 06:53:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-12 06:53:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-12 06:53:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-12 06:53:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-12 06:53:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-12 06:53:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-12 06:53:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-12 06:53:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-12 06:53:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-12 06:53:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:53:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:53:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:53:25,765 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:53:25,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:53:39,594 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:53:39,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:53:39,617 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 06:53:39,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:39 BoogieIcfgContainer [2022-07-12 06:53:39,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:53:39,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:53:39,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:53:39,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:53:39,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:53:23" (1/3) ... [2022-07-12 06:53:39,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78efa0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:39, skipping insertion in model container [2022-07-12 06:53:39,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:24" (2/3) ... [2022-07-12 06:53:39,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78efa0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:39, skipping insertion in model container [2022-07-12 06:53:39,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:39" (3/3) ... [2022-07-12 06:53:39,627 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-07-12 06:53:39,637 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:53:39,637 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:53:39,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:53:39,746 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@744759e6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76dbda38 [2022-07-12 06:53:39,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:53:39,760 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) [2022-07-12 06:53:39,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-12 06:53:39,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:53:39,774 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] [2022-07-12 06:53:39,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:53:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:53:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2022-07-12 06:53:39,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:53:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102147556] [2022-07-12 06:53:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:53:39,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms