./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 6c24879c 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-?-6c24879 [2022-07-12 06:53:26,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:53:27,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:53:27,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:53:27,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:53:27,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:53:27,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:53:27,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:53:27,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:53:27,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:53:27,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:53:27,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:53:27,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:53:27,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:53:27,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:53:27,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:53:27,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:53:27,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:53:27,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:53:27,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:53:27,062 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:53:27,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:53:27,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:53:27,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:53:27,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:53:27,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:53:27,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:53:27,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:53:27,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:53:27,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:53:27,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:53:27,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:53:27,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:53:27,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:53:27,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:53:27,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:53:27,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:53:27,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:53:27,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:53:27,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:53:27,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:53:27,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:53:27,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:53:27,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:53:27,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:53:27,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:53:27,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:53:27,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:53:27,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:53:27,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:53:27,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:53:27,103 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:53:27,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:53:27,104 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:53:27,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:53:27,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:53:27,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:53:27,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:53:27,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:53:27,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:53:27,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:53:27,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:53:27,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:53:27,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:53:27,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:53:27,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:53:27,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:53:27,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:27,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:53:27,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:53:27,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:53:27,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:53:27,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:53:27,108 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:53:27,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:53:27,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:53:27,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2022-07-12 06:53:27,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:53:27,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:53:27,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:53:27,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:53:27,318 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:53:27,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-07-12 06:53:27,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decfb2a37/4bc3f5c15a3c4c50aa6728ae368fe324/FLAGa17bb80eb [2022-07-12 06:53:27,992 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:53:28,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-07-12 06:53:28,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decfb2a37/4bc3f5c15a3c4c50aa6728ae368fe324/FLAGa17bb80eb [2022-07-12 06:53:28,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decfb2a37/4bc3f5c15a3c4c50aa6728ae368fe324 [2022-07-12 06:53:28,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:53:28,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:53:28,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:28,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:53:28,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:53:28,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d696367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28, skipping insertion in model container [2022-07-12 06:53:28,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:53:28,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:53:28,423 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] [2022-07-12 06:53:28,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:28,865 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:53:28,879 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] [2022-07-12 06:53:29,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:29,108 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:53:29,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29 WrapperNode [2022-07-12 06:53:29,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:29,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:29,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:53:29,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:53:29,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,383 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-07-12 06:53:29,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:29,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:53:29,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:53:29,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:53:29,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:53:29,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:53:29,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:53:29,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:53:29,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (1/1) ... [2022-07-12 06:53:29,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:53:29,653 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) [2022-07-12 06:53:29,693 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 [2022-07-12 06:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-12 06:53:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-12 06:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-12 06:53:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-12 06:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 06:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-12 06:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-12 06:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-12 06:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-12 06:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-12 06:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-12 06:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-12 06:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-12 06:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 06:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-12 06:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-12 06:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-12 06:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-12 06:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-12 06:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-12 06:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-12 06:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-12 06:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-12 06:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-12 06:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-12 06:53:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-12 06:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-12 06:53:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-12 06:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-12 06:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-12 06:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-12 06:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-12 06:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-12 06:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-12 06:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-12 06:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-12 06:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-12 06:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-12 06:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-12 06:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-12 06:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-12 06:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-12 06:53:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-12 06:53:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-12 06:53:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-12 06:53:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-12 06:53:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-12 06:53:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-12 06:53:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-12 06:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-12 06:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-12 06:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-12 06:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-12 06:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-12 06:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-12 06:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-12 06:53:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-12 06:53:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-12 06:53:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-12 06:53:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-12 06:53:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-12 06:53:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-12 06:53:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-12 06:53:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-12 06:53:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-12 06:53:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-12 06:53:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-12 06:53:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-12 06:53:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:53:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:53:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:53:30,303 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:53:30,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:53:46,784 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:53:46,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:53:46,817 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 06:53:46,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:46 BoogieIcfgContainer [2022-07-12 06:53:46,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:53:46,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:53:46,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:53:46,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:53:46,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:53:28" (1/3) ... [2022-07-12 06:53:46,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3701141c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:46, skipping insertion in model container [2022-07-12 06:53:46,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:29" (2/3) ... [2022-07-12 06:53:46,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3701141c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:46, skipping insertion in model container [2022-07-12 06:53:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:46" (3/3) ... [2022-07-12 06:53:46,830 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-07-12 06:53:46,840 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:53:46,840 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:53:46,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:53:46,921 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@648db88d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6aadd359 [2022-07-12 06:53:46,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:53:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2022-07-12 06:53:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-12 06:53:46,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:53:46,964 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:53:46,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:53:46,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:53:46,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-07-12 06:53:46,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:53:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645184889] [2022-07-12 06:53:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:53:46,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms