./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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.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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:12:14,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:12:14,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:12:14,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:12:14,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:12:14,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:12:14,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:12:14,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:12:14,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:12:14,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:12:14,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:12:14,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:12:14,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:12:14,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:12:14,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:12:14,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:12:14,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:12:14,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:12:14,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:12:14,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:12:14,403 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:12:14,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:12:14,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:12:14,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:12:14,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:12:14,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:12:14,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:12:14,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:12:14,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:12:14,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:12:14,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:12:14,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:12:14,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:12:14,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:12:14,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:12:14,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:12:14,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:12:14,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:12:14,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:12:14,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:12:14,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:12:14,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:12:14,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:12:14,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:12:14,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:12:14,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:12:14,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:12:14,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:12:14,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:12:14,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:12:14,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:12:14,471 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:12:14,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:12:14,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:12:14,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:12:14,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:12:14,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:12:14,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:12:14,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:12:14,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:12:14,475 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:12:14,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:12:14,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:12:14,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:12:14,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:12:14,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:12:14,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:12:14,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:12:14,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:12:14,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:12:14,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:12:14,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:12:14,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:12:14,478 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:12:14,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:12:14,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:12:14,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-07-22 18:12:14,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:12:14,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:12:14,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:12:14,807 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:12:14,808 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:12:14,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-07-22 18:12:14,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d7b0c69/10fd069ce34f408bb6d99c588c4354b6/FLAGdea9987a8 [2022-07-22 18:12:15,669 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:12:15,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-07-22 18:12:15,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d7b0c69/10fd069ce34f408bb6d99c588c4354b6/FLAGdea9987a8 [2022-07-22 18:12:15,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d7b0c69/10fd069ce34f408bb6d99c588c4354b6 [2022-07-22 18:12:15,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:12:15,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:12:15,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:12:15,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:12:15,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:12:15,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:12:15" (1/1) ... [2022-07-22 18:12:15,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2492fa10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:15, skipping insertion in model container [2022-07-22 18:12:15,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:12:15" (1/1) ... [2022-07-22 18:12:15,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:12:15,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:12:16,195 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.1.c[1868,1881] [2022-07-22 18:12:16,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:12:16,807 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:12:16,824 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.1.c[1868,1881] [2022-07-22 18:12:17,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:12:17,174 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:12:17,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17 WrapperNode [2022-07-22 18:12:17,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:12:17,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:12:17,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:12:17,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:12:17,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,542 INFO L137 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-07-22 18:12:17,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:12:17,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:12:17,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:12:17,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:12:17,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:12:17,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:12:17,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:12:17,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:12:17,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (1/1) ... [2022-07-22 18:12:17,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:12:18,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:12:18,029 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) [2022-07-22 18:12:18,059 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 [2022-07-22 18:12:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-22 18:12:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-22 18:12:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-22 18:12:18,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-22 18:12:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 18:12:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-22 18:12:18,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-22 18:12:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-22 18:12:18,083 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-22 18:12:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-22 18:12:18,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-22 18:12:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-22 18:12:18,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-22 18:12:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-22 18:12:18,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-22 18:12:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-22 18:12:18,085 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-22 18:12:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-22 18:12:18,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-22 18:12:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-22 18:12:18,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-22 18:12:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 18:12:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-22 18:12:18,086 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-22 18:12:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-22 18:12:18,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-22 18:12:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-22 18:12:18,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-22 18:12:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-22 18:12:18,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-22 18:12:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-22 18:12:18,087 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-22 18:12:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-22 18:12:18,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-22 18:12:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-22 18:12:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-22 18:12:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:12:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-22 18:12:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-22 18:12:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-22 18:12:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-22 18:12:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-22 18:12:18,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-22 18:12:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-22 18:12:18,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-22 18:12:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-22 18:12:18,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-22 18:12:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-22 18:12:18,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-22 18:12:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-22 18:12:18,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-22 18:12:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-22 18:12:18,091 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-22 18:12:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-22 18:12:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-22 18:12:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-22 18:12:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-22 18:12:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-22 18:12:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-22 18:12:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-22 18:12:18,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-22 18:12:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-22 18:12:18,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-22 18:12:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-22 18:12:18,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-22 18:12:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-22 18:12:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-22 18:12:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-22 18:12:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-22 18:12:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-22 18:12:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-22 18:12:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-22 18:12:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-22 18:12:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-22 18:12:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-22 18:12:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-22 18:12:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-22 18:12:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-22 18:12:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-22 18:12:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-22 18:12:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-22 18:12:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-22 18:12:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-22 18:12:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-22 18:12:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-22 18:12:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-22 18:12:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-22 18:12:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-22 18:12:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-22 18:12:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:12:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-22 18:12:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-22 18:12:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:12:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:12:18,676 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:12:18,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:12:33,284 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:12:33,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:12:33,321 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 18:12:33,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:12:33 BoogieIcfgContainer [2022-07-22 18:12:33,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:12:33,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:12:33,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:12:33,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:12:33,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:12:15" (1/3) ... [2022-07-22 18:12:33,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3aca98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:12:33, skipping insertion in model container [2022-07-22 18:12:33,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:17" (2/3) ... [2022-07-22 18:12:33,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3aca98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:12:33, skipping insertion in model container [2022-07-22 18:12:33,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:12:33" (3/3) ... [2022-07-22 18:12:33,340 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-07-22 18:12:33,355 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:12:33,355 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 18:12:33,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:12:33,472 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@6cfce329, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b9b76bb [2022-07-22 18:12:33,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 18:12:33,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-07-22 18:12:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-22 18:12:33,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:12:33,531 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] [2022-07-22 18:12:33,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 18:12:33,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:12:33,541 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-07-22 18:12:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:12:33,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037985353] [2022-07-22 18:12:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:12:33,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms