./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.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.2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:37:05,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:37:05,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:37:05,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:37:05,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:37:05,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:37:05,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:37:05,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:37:05,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:37:05,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:37:05,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:37:05,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:37:05,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:37:05,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:37:05,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:37:05,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:37:05,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:37:05,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:37:05,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:37:05,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:37:05,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:37:05,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:37:05,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:37:05,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:37:05,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:37:05,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:37:05,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:37:05,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:37:05,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:37:05,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:37:05,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:37:05,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:37:05,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:37:05,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:37:05,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:37:05,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:37:05,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:37:05,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:37:05,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:37:05,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:37:05,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:37:05,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:37:05,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:37:05,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:37:05,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:37:05,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:37:05,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:37:05,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:37:05,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:37:05,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:37:05,145 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:37:05,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:37:05,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:37:05,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:37:05,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:37:05,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:37:05,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:37:05,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:37:05,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:37:05,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:37:05,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:37:05,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:37:05,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:37:05,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:37:05,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:37:05,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:37:05,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:37:05,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:37:05,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:37:05,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-02-20 18:37:05,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:37:05,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:37:05,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:37:05,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:37:05,387 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:37:05,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-02-20 18:37:05,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e418d8c/6c6cb927c7a54e4da9a73dabbf5ae28f/FLAGb748acb6e [2022-02-20 18:37:06,001 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:37:06,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-02-20 18:37:06,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e418d8c/6c6cb927c7a54e4da9a73dabbf5ae28f/FLAGb748acb6e [2022-02-20 18:37:06,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e418d8c/6c6cb927c7a54e4da9a73dabbf5ae28f [2022-02-20 18:37:06,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:37:06,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:37:06,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:37:06,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:37:06,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:37:06,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:37:06" (1/1) ... [2022-02-20 18:37:06,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa8c219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:06, skipping insertion in model container [2022-02-20 18:37:06,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:37:06" (1/1) ... [2022-02-20 18:37:06,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:37:06,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:37:06,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-02-20 18:37:06,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:37:06,935 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:37:06,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-02-20 18:37:07,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:37:07,236 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:37:07,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07 WrapperNode [2022-02-20 18:37:07,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:37:07,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:37:07,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:37:07,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:37:07,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,527 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-02-20 18:37:07,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:37:07,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:37:07,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:37:07,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:37:07,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:37:07,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:37:07,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:37:07,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:37:07,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (1/1) ... [2022-02-20 18:37:07,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:37:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:37:07,853 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 18:37:07,884 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 18:37:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-02-20 18:37:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-02-20 18:37:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-02-20 18:37:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-02-20 18:37:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 18:37:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-02-20 18:37:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-02-20 18:37:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-02-20 18:37:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-02-20 18:37:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-02-20 18:37:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-02-20 18:37:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-02-20 18:37:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-02-20 18:37:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-02-20 18:37:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-02-20 18:37:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-02-20 18:37:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-02-20 18:37:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-02-20 18:37:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-02-20 18:37:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-02-20 18:37:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-02-20 18:37:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 18:37:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-02-20 18:37:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-02-20 18:37:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-02-20 18:37:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-02-20 18:37:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-02-20 18:37:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-02-20 18:37:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-02-20 18:37:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-02-20 18:37:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-02-20 18:37:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-02-20 18:37:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-02-20 18:37:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-02-20 18:37:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-02-20 18:37:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-02-20 18:37:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:37:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-02-20 18:37:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-02-20 18:37:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-02-20 18:37:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-02-20 18:37:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-02-20 18:37:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-02-20 18:37:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-02-20 18:37:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-02-20 18:37:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-02-20 18:37:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-02-20 18:37:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-02-20 18:37:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-02-20 18:37:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-02-20 18:37:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-02-20 18:37:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-02-20 18:37:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-02-20 18:37:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-02-20 18:37:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-02-20 18:37:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-02-20 18:37:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-02-20 18:37:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-02-20 18:37:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-02-20 18:37:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-02-20 18:37:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-02-20 18:37:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-02-20 18:37:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-02-20 18:37:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-02-20 18:37:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-02-20 18:37:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-02-20 18:37:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-02-20 18:37:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-02-20 18:37:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-02-20 18:37:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-02-20 18:37:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-02-20 18:37:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-02-20 18:37:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-02-20 18:37:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-02-20 18:37:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-02-20 18:37:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-02-20 18:37:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-02-20 18:37:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-02-20 18:37:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-02-20 18:37:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-02-20 18:37:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-02-20 18:37:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-02-20 18:37:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-02-20 18:37:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-02-20 18:37:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-02-20 18:37:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-02-20 18:37:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-02-20 18:37:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-02-20 18:37:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-02-20 18:37:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:37:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-02-20 18:37:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-02-20 18:37:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:37:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:37:08,384 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:37:08,386 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:37:22,152 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:37:22,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:37:22,197 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 18:37:22,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:22 BoogieIcfgContainer [2022-02-20 18:37:22,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:37:22,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:37:22,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:37:22,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:37:22,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:37:06" (1/3) ... [2022-02-20 18:37:22,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a04564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:22, skipping insertion in model container [2022-02-20 18:37:22,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:07" (2/3) ... [2022-02-20 18:37:22,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a04564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:22, skipping insertion in model container [2022-02-20 18:37:22,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:22" (3/3) ... [2022-02-20 18:37:22,210 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-02-20 18:37:22,214 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:37:22,218 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:37:22,257 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:37:22,267 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 18:37:22,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:37:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-02-20 18:37:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-20 18:37:22,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:37:22,353 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 18:37:22,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:37:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:37:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-02-20 18:37:22,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:37:22,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515559585] [2022-02-20 18:37:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:37:22,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms