./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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.3-1.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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 01:17:22,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 01:17:22,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 01:17:22,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 01:17:22,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 01:17:22,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 01:17:22,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 01:17:22,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 01:17:22,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 01:17:22,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 01:17:22,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 01:17:22,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 01:17:22,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 01:17:22,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 01:17:22,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 01:17:22,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 01:17:22,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 01:17:22,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 01:17:22,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 01:17:22,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 01:17:22,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 01:17:22,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 01:17:22,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 01:17:22,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 01:17:22,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 01:17:22,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 01:17:22,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 01:17:22,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 01:17:22,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 01:17:22,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 01:17:22,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 01:17:22,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 01:17:22,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 01:17:22,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 01:17:22,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 01:17:22,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 01:17:22,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 01:17:22,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 01:17:22,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 01:17:22,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 01:17:22,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 01:17:22,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 01:17:22,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 01:17:22,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 01:17:22,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 01:17:22,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 01:17:22,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 01:17:22,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 01:17:22,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 01:17:22,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 01:17:22,449 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 01:17:22,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 01:17:22,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 01:17:22,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 01:17:22,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 01:17:22,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 01:17:22,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 01:17:22,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 01:17:22,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 01:17:22,450 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 01:17:22,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 01:17:22,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 01:17:22,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 01:17:22,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 01:17:22,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 01:17:22,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 01:17:22,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:17:22,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 01:17:22,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 01:17:22,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 01:17:22,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 01:17:22,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 01:17:22,453 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 01:17:22,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 01:17:22,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 01:17:22,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-28 01:17:22,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 01:17:22,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 01:17:22,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 01:17:22,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 01:17:22,786 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 01:17:22,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-28 01:17:22,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16e012ed/07bf5a1f76504d22b010ad7e1ea15ff8/FLAG4f32ac24c [2021-12-28 01:17:23,414 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 01:17:23,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-28 01:17:23,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16e012ed/07bf5a1f76504d22b010ad7e1ea15ff8/FLAG4f32ac24c [2021-12-28 01:17:23,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16e012ed/07bf5a1f76504d22b010ad7e1ea15ff8 [2021-12-28 01:17:23,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 01:17:23,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 01:17:23,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 01:17:23,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 01:17:23,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 01:17:23,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:17:23" (1/1) ... [2021-12-28 01:17:23,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b12171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:23, skipping insertion in model container [2021-12-28 01:17:23,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:17:23" (1/1) ... [2021-12-28 01:17:23,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 01:17:23,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 01:17:24,100 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.3-1.c[1870,1883] [2021-12-28 01:17:24,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:17:24,514 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 01:17:24,527 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.3-1.c[1870,1883] [2021-12-28 01:17:24,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:17:24,790 INFO L208 MainTranslator]: Completed translation [2021-12-28 01:17:24,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24 WrapperNode [2021-12-28 01:17:24,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 01:17:24,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 01:17:24,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 01:17:24,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 01:17:24,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:24,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,077 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-28 01:17:25,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 01:17:25,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 01:17:25,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 01:17:25,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 01:17:25,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 01:17:25,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 01:17:25,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 01:17:25,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 01:17:25,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:25,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:17:25,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 01:17:25,411 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) [2021-12-28 01:17:25,418 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 [2021-12-28 01:17:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-28 01:17:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-28 01:17:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-28 01:17:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-28 01:17:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 01:17:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-28 01:17:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-28 01:17:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-28 01:17:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-28 01:17:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-28 01:17:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-28 01:17:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-28 01:17:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-28 01:17:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-28 01:17:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-28 01:17:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-28 01:17:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-28 01:17:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-28 01:17:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-28 01:17:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-28 01:17:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-28 01:17:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 01:17:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-28 01:17:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-28 01:17:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-28 01:17:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-28 01:17:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-28 01:17:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-28 01:17:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-28 01:17:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-28 01:17:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-28 01:17:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-28 01:17:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-28 01:17:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-28 01:17:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-28 01:17:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-28 01:17:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 01:17:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-28 01:17:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-28 01:17:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-28 01:17:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-28 01:17:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-28 01:17:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-28 01:17:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-28 01:17:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-28 01:17:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-28 01:17:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-28 01:17:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-28 01:17:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-28 01:17:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-28 01:17:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-28 01:17:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-28 01:17:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-28 01:17:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-28 01:17:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-28 01:17:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-28 01:17:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-28 01:17:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-28 01:17:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-28 01:17:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-28 01:17:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-28 01:17:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-28 01:17:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-28 01:17:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-28 01:17:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-28 01:17:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-28 01:17:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-28 01:17:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-28 01:17:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-28 01:17:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-28 01:17:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-28 01:17:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-28 01:17:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-28 01:17:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-28 01:17:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-28 01:17:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-28 01:17:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-28 01:17:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-28 01:17:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-28 01:17:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-28 01:17:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-28 01:17:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-28 01:17:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-28 01:17:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-28 01:17:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-28 01:17:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-28 01:17:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-28 01:17:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-28 01:17:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-28 01:17:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 01:17:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-28 01:17:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-28 01:17:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 01:17:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 01:17:25,947 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 01:17:25,950 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 01:17:43,567 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 01:17:43,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 01:17:43,595 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-28 01:17:43,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:17:43 BoogieIcfgContainer [2021-12-28 01:17:43,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 01:17:43,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 01:17:43,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 01:17:43,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 01:17:43,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 01:17:23" (1/3) ... [2021-12-28 01:17:43,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c44211e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:17:43, skipping insertion in model container [2021-12-28 01:17:43,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24" (2/3) ... [2021-12-28 01:17:43,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c44211e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:17:43, skipping insertion in model container [2021-12-28 01:17:43,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:17:43" (3/3) ... [2021-12-28 01:17:43,606 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-28 01:17:43,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 01:17:43,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 01:17:43,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 01:17:43,667 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 [2021-12-28 01:17:43,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 01:17:43,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-28 01:17:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 01:17:43,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:17:43,745 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] [2021-12-28 01:17:43,746 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:17:43,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:17:43,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-28 01:17:43,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:17:43,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232403894] [2021-12-28 01:17:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:17:43,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms