./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 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.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 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:22:47,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:22:47,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:22:47,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:22:47,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:22:47,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:22:47,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:22:47,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:22:47,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:22:47,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:22:47,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:22:47,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:22:47,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:22:47,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:22:47,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:22:47,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:22:47,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:22:47,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:22:47,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:22:47,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:22:47,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:22:47,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:22:47,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:22:47,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:22:47,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:22:47,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:22:47,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:22:47,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:22:47,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:22:47,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:22:47,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:22:47,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:22:47,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:22:47,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:22:47,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:22:47,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:22:47,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:22:47,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:22:47,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:22:47,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:22:47,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:22:47,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:22:47,887 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:22:47,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:22:47,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:22:47,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:22:47,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:22:47,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:22:47,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:22:47,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:22:47,893 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:22:47,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:22:47,894 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:22:47,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:22:47,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:22:47,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:22:47,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:22:47,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:22:47,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:22:47,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:22:47,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:22:47,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:22:47,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:22:47,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:22:47,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:22:47,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:22:47,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:22:47,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:22:47,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:22:47,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:22:47,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:22:47,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:22:47,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:22:47,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:22:47,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:22:47,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:22:47,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-15 11:22:48,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:22:48,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:22:48,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:22:48,123 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:22:48,124 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:22:48,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-15 11:22:48,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e259098/99b0074739bc4c1fbf11ecd3fbc2c32a/FLAG7ffb493c4 [2021-12-15 11:22:48,764 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:22:48,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-15 11:22:48,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e259098/99b0074739bc4c1fbf11ecd3fbc2c32a/FLAG7ffb493c4 [2021-12-15 11:22:49,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e259098/99b0074739bc4c1fbf11ecd3fbc2c32a [2021-12-15 11:22:49,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:22:49,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:22:49,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:22:49,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:22:49,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:22:49,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:22:49" (1/1) ... [2021-12-15 11:22:49,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2183fcac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:49, skipping insertion in model container [2021-12-15 11:22:49,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:22:49" (1/1) ... [2021-12-15 11:22:49,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:22:49,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:22:49,453 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] [2021-12-15 11:22:49,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:22:49,947 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:22:49,958 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] [2021-12-15 11:22:50,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:22:50,187 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:22:50,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50 WrapperNode [2021-12-15 11:22:50,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:22:50,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:22:50,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:22:50,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:22:50,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,482 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-15 11:22:50,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:22:50,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:22:50,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:22:50,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:22:50,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:22:50,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:22:50,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:22:50,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:22:50,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (1/1) ... [2021-12-15 11:22:50,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:22:50,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:22:50,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:22:50,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:22:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-15 11:22:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-15 11:22:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-15 11:22:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-15 11:22:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 11:22:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-15 11:22:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-15 11:22:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-15 11:22:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-15 11:22:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-15 11:22:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-15 11:22:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-15 11:22:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-15 11:22:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-15 11:22:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-15 11:22:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-15 11:22:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-15 11:22:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-15 11:22:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-15 11:22:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-15 11:22:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-15 11:22:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 11:22:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-15 11:22:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-15 11:22:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-15 11:22:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-15 11:22:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-15 11:22:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-15 11:22:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-15 11:22:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-15 11:22:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-15 11:22:50,836 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-15 11:22:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-15 11:22:50,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-15 11:22:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-15 11:22:50,837 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-15 11:22:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:22:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-15 11:22:50,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-15 11:22:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-15 11:22:50,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-15 11:22:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-15 11:22:50,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-15 11:22:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-15 11:22:50,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-15 11:22:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-15 11:22:50,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-15 11:22:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-15 11:22:50,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-15 11:22:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-15 11:22:50,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-15 11:22:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-15 11:22:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-15 11:22:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-15 11:22:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-15 11:22:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-15 11:22:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-15 11:22:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-15 11:22:50,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-15 11:22:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-15 11:22:50,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-15 11:22:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-15 11:22:50,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-15 11:22:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-15 11:22:50,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-15 11:22:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-15 11:22:50,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-15 11:22:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-15 11:22:50,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-15 11:22:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-15 11:22:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-15 11:22:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-15 11:22:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-15 11:22:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-15 11:22:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-15 11:22:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-15 11:22:50,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-15 11:22:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-15 11:22:50,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-15 11:22:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-15 11:22:50,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-15 11:22:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-15 11:22:50,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-15 11:22:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-15 11:22:50,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-15 11:22:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-15 11:22:50,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-15 11:22:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-15 11:22:50,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-15 11:22:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:22:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-15 11:22:50,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-15 11:22:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:22:50,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:22:51,454 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:22:51,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:23:08,170 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:23:08,196 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:23:08,196 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 11:23:08,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:23:08 BoogieIcfgContainer [2021-12-15 11:23:08,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:23:08,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:23:08,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:23:08,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:23:08,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:22:49" (1/3) ... [2021-12-15 11:23:08,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23813544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:23:08, skipping insertion in model container [2021-12-15 11:23:08,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:50" (2/3) ... [2021-12-15 11:23:08,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23813544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:23:08, skipping insertion in model container [2021-12-15 11:23:08,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:23:08" (3/3) ... [2021-12-15 11:23:08,210 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-15 11:23:08,214 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:23:08,215 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:23:08,254 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:23:08,259 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:23:08,259 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:23:08,352 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) [2021-12-15 11:23:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-15 11:23:08,366 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:23:08,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:23:08,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:23:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:23:08,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-15 11:23:08,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:23:08,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962171759] [2021-12-15 11:23:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:23:08,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms