./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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.3-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:20:34,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:20:34,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:20:34,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:20:34,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:20:34,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:20:34,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:20:34,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:20:34,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:20:34,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:20:34,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:20:34,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:20:34,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:20:34,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:20:34,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:20:34,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:20:34,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:20:34,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:20:34,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:20:34,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:20:34,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:20:34,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:20:34,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:20:34,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:20:34,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:20:34,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:20:34,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:20:34,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:20:34,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:20:34,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:20:34,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:20:34,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:20:34,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:20:34,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:20:34,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:20:34,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:20:34,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:20:34,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:20:34,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:20:34,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:20:34,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:20:34,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:20:34,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:20:34,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:20:34,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:20:34,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:20:34,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:20:34,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:20:34,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:20:34,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:20:34,939 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:20:34,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:20:34,940 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:20:34,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:20:34,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:20:34,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:20:34,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:20:34,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:20:34,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:20:34,942 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:20:34,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:20:34,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:20:34,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:20:34,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:20:34,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:20:34,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:20:34,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:20:34,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:20:34,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:20:34,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:20:34,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:20:34,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:20:34,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:20:34,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:20:34,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:20:34,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:20:34,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2021-12-16 01:20:35,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:20:35,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:20:35,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:20:35,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:20:35,191 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:20:35,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-16 01:20:35,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed8ccadd/307a7fa2fdff4c46bc5a2264e64ab615/FLAGc9fb8aaf0 [2021-12-16 01:20:35,850 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:20:35,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-16 01:20:35,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed8ccadd/307a7fa2fdff4c46bc5a2264e64ab615/FLAGc9fb8aaf0 [2021-12-16 01:20:36,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed8ccadd/307a7fa2fdff4c46bc5a2264e64ab615 [2021-12-16 01:20:36,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:20:36,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:20:36,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:20:36,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:20:36,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:20:36,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:36" (1/1) ... [2021-12-16 01:20:36,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f29b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:36, skipping insertion in model container [2021-12-16 01:20:36,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:36" (1/1) ... [2021-12-16 01:20:36,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:20:36,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:20:36,523 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.3-2.c[1871,1884] [2021-12-16 01:20:37,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:20:37,044 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:20:37,060 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.3-2.c[1871,1884] [2021-12-16 01:20:37,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:20:37,346 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:20:37,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37 WrapperNode [2021-12-16 01:20:37,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:20:37,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:20:37,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:20:37,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:20:37,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,729 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-16 01:20:37,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:20:37,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:20:37,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:20:37,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:20:37,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:37,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:38,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:20:38,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:20:38,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:20:38,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:20:38,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (1/1) ... [2021-12-16 01:20:38,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:20:38,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:20:38,077 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) [2021-12-16 01:20:38,087 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 [2021-12-16 01:20:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-16 01:20:38,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-16 01:20:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-16 01:20:38,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-16 01:20:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 01:20:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-16 01:20:38,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-16 01:20:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-16 01:20:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-16 01:20:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-16 01:20:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-16 01:20:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-16 01:20:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-16 01:20:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-16 01:20:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-16 01:20:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-16 01:20:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-16 01:20:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-16 01:20:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-16 01:20:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-16 01:20:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-16 01:20:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 01:20:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-16 01:20:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-16 01:20:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-16 01:20:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-16 01:20:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-16 01:20:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-16 01:20:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-16 01:20:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-16 01:20:38,127 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-16 01:20:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-16 01:20:38,127 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-16 01:20:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-16 01:20:38,127 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-16 01:20:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-16 01:20:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:20:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-16 01:20:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-16 01:20:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-16 01:20:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-16 01:20:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-16 01:20:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-16 01:20:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-16 01:20:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-16 01:20:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-16 01:20:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-16 01:20:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-16 01:20:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-16 01:20:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-16 01:20:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-16 01:20:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-16 01:20:38,131 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-16 01:20:38,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-16 01:20:38,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-16 01:20:38,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-16 01:20:38,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-16 01:20:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-16 01:20:38,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-16 01:20:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-16 01:20:38,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-16 01:20:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-16 01:20:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-16 01:20:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-16 01:20:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-16 01:20:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-16 01:20:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-16 01:20:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-16 01:20:38,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-16 01:20:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-16 01:20:38,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-16 01:20:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-16 01:20:38,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-16 01:20:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-16 01:20:38,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-16 01:20:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-16 01:20:38,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-16 01:20:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-16 01:20:38,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-16 01:20:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-16 01:20:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-16 01:20:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-16 01:20:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-16 01:20:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-16 01:20:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-16 01:20:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-16 01:20:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-16 01:20:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-16 01:20:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-16 01:20:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:20:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-16 01:20:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-16 01:20:38,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:20:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:20:38,819 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:20:38,821 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:20:54,941 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:20:54,986 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:20:54,986 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-16 01:20:54,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:54 BoogieIcfgContainer [2021-12-16 01:20:54,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:20:54,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:20:54,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:20:54,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:20:54,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:20:36" (1/3) ... [2021-12-16 01:20:54,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2993f01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:54, skipping insertion in model container [2021-12-16 01:20:54,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:37" (2/3) ... [2021-12-16 01:20:54,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2993f01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:54, skipping insertion in model container [2021-12-16 01:20:54,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:54" (3/3) ... [2021-12-16 01:20:55,000 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2021-12-16 01:20:55,004 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:20:55,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:20:55,072 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:20:55,080 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 [2021-12-16 01:20:55,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:20:55,158 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) [2021-12-16 01:20:55,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-16 01:20:55,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:20:55,172 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] [2021-12-16 01:20:55,173 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:20:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:20:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-16 01:20:55,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:20:55,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57575437] [2021-12-16 01:20:55,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:20:55,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms