./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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-03d7b7b [2022-02-20 18:37:11,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:37:11,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:37:11,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:37:11,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:37:11,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:37:11,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:37:11,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:37:11,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:37:11,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:37:11,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:37:11,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:37:11,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:37:11,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:37:11,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:37:11,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:37:11,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:37:11,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:37:11,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:37:11,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:37:11,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:37:11,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:37:11,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:37:11,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:37:11,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:37:11,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:37:11,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:37:11,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:37:11,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:37:11,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:37:11,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:37:11,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:37:11,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:37:11,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:37:11,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:37:11,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:37:11,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:37:11,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:37:11,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:37:11,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:37:11,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:37:11,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:37:11,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:37:11,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:37:11,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:37:11,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:37:11,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:37:11,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:37:11,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:37:11,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:37:11,159 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:37:11,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:37:11,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:37:11,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:37:11,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:37:11,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:37:11,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:37:11,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:37:11,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:37:11,162 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:37:11,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:37:11,162 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:37:11,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:37:11,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:37:11,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:37:11,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:37:11,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:37:11,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:37:11,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:37:11,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:37:11,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:37:11,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:37:11,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:37:11,165 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:37:11,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:37:11,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2022-02-20 18:37:11,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:37:11,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:37:11,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:37:11,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:37:11,383 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:37:11,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-02-20 18:37:11,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89cb346c5/94b815ab0ed0462c971f0b135988e128/FLAG67f1bc450 [2022-02-20 18:37:11,988 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:37:11,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-02-20 18:37:12,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89cb346c5/94b815ab0ed0462c971f0b135988e128/FLAG67f1bc450 [2022-02-20 18:37:12,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89cb346c5/94b815ab0ed0462c971f0b135988e128 [2022-02-20 18:37:12,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:37:12,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:37:12,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:37:12,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:37:12,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:37:12,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:37:12" (1/1) ... [2022-02-20 18:37:12,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1cbb0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:12, skipping insertion in model container [2022-02-20 18:37:12,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:37:12" (1/1) ... [2022-02-20 18:37:12,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:37:12,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:37:12,684 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] [2022-02-20 18:37:13,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:37:13,238 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:37:13,249 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] [2022-02-20 18:37:13,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:37:13,522 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:37:13,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13 WrapperNode [2022-02-20 18:37:13,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:37:13,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:37:13,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:37:13,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:37:13,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,799 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-02-20 18:37:13,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:37:13,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:37:13,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:37:13,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:37:13,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:14,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:14,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:14,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:14,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:37:14,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:37:14,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:37:14,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:37:14,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:14,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:37:14,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:37:14,155 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) [2022-02-20 18:37:14,160 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 [2022-02-20 18:37:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-02-20 18:37:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-02-20 18:37:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-02-20 18:37:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-02-20 18:37:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 18:37:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-02-20 18:37:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-02-20 18:37:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-02-20 18:37:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-02-20 18:37:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-02-20 18:37:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-02-20 18:37:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-02-20 18:37:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-02-20 18:37:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-02-20 18:37:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-02-20 18:37:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-02-20 18:37:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-02-20 18:37:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-02-20 18:37:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-02-20 18:37:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-02-20 18:37:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-02-20 18:37:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 18:37:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-02-20 18:37:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-02-20 18:37:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-02-20 18:37:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-02-20 18:37:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-02-20 18:37:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-02-20 18:37:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-02-20 18:37:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-02-20 18:37:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-02-20 18:37:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-02-20 18:37:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-02-20 18:37:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-02-20 18:37:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-02-20 18:37:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-02-20 18:37:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:37:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-02-20 18:37:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-02-20 18:37:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-02-20 18:37:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-02-20 18:37:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-02-20 18:37:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-02-20 18:37:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-02-20 18:37:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-02-20 18:37:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-02-20 18:37:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-02-20 18:37:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-02-20 18:37:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-02-20 18:37:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-02-20 18:37:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-02-20 18:37:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-02-20 18:37:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-02-20 18:37:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-02-20 18:37:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-02-20 18:37:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-02-20 18:37:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-02-20 18:37:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-02-20 18:37:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-02-20 18:37:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-02-20 18:37:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-02-20 18:37:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-02-20 18:37:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-02-20 18:37:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-02-20 18:37:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-02-20 18:37:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-02-20 18:37:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-02-20 18:37:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-02-20 18:37:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-02-20 18:37:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-02-20 18:37:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-02-20 18:37:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-02-20 18:37:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-02-20 18:37:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-02-20 18:37:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-02-20 18:37:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-02-20 18:37:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-02-20 18:37:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-02-20 18:37:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-02-20 18:37:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-02-20 18:37:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-02-20 18:37:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-02-20 18:37:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-02-20 18:37:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-02-20 18:37:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-02-20 18:37:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-02-20 18:37:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-02-20 18:37:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-02-20 18:37:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-02-20 18:37:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:37:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-02-20 18:37:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-02-20 18:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:37:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:37:14,670 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:37:14,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:37:32,384 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:37:32,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:37:32,407 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 18:37:32,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:32 BoogieIcfgContainer [2022-02-20 18:37:32,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:37:32,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:37:32,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:37:32,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:37:32,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:37:12" (1/3) ... [2022-02-20 18:37:32,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54dd7404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:32, skipping insertion in model container [2022-02-20 18:37:32,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13" (2/3) ... [2022-02-20 18:37:32,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54dd7404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:32, skipping insertion in model container [2022-02-20 18:37:32,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:32" (3/3) ... [2022-02-20 18:37:32,416 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-02-20 18:37:32,420 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:37:32,420 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:37:32,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:37:32,464 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 [2022-02-20 18:37:32,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:37:32,524 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) [2022-02-20 18:37:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-20 18:37:32,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:37:32,535 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] [2022-02-20 18:37:32,536 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:37:32,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:37:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-02-20 18:37:32,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:37:32,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163373941] [2022-02-20 18:37:32,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:37:32,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms