./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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.2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:06:13,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:06:13,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:06:13,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:06:13,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:06:13,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:06:13,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:06:13,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:06:13,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:06:13,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:06:13,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:06:13,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:06:13,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:06:13,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:06:13,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:06:13,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:06:13,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:06:13,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:06:13,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:06:13,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:06:13,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:06:13,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:06:13,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:06:13,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:06:13,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:06:13,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:06:13,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:06:13,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:06:13,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:06:13,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:06:13,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:06:13,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:06:13,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:06:13,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:06:13,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:06:13,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:06:13,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:06:13,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:06:13,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:06:13,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:06:13,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:06:13,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:06:13,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:06:13,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:06:13,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:06:13,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:06:13,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:06:13,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:06:13,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:06:13,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:06:13,718 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:06:13,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:06:13,726 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:06:13,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:06:13,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:06:13,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:06:13,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:06:13,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:06:13,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:06:13,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:06:13,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:06:13,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:06:13,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:06:13,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:06:13,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:06:13,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:06:13,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:13,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:06:13,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:06:13,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:06:13,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:06:13,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:06:13,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:06:13,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:06:13,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:06:13,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:06:13,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2021-12-14 15:06:13,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:06:14,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:06:14,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:06:14,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:06:14,023 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:06:14,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2021-12-14 15:06:14,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a01493c2/25aea398c1f94a3f9832f8b3ff459cdd/FLAGd70432b27 [2021-12-14 15:06:14,726 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:06:14,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2021-12-14 15:06:14,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a01493c2/25aea398c1f94a3f9832f8b3ff459cdd/FLAGd70432b27 [2021-12-14 15:06:14,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a01493c2/25aea398c1f94a3f9832f8b3ff459cdd [2021-12-14 15:06:14,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:06:14,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:06:14,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:14,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:06:14,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:06:14,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:14" (1/1) ... [2021-12-14 15:06:14,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f169b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:14, skipping insertion in model container [2021-12-14 15:06:14,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:14" (1/1) ... [2021-12-14 15:06:14,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:06:14,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:06:15,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2021-12-14 15:06:15,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:15,614 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:06:15,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2021-12-14 15:06:15,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:15,896 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:06:15,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15 WrapperNode [2021-12-14 15:06:15,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:15,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:15,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:06:15,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:06:15,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:15,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,220 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2021-12-14 15:06:16,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:16,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:06:16,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:06:16,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:06:16,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:06:16,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:06:16,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:06:16,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:06:16,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:16,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:16,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:06:16,621 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) [2021-12-14 15:06:16,643 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 [2021-12-14 15:06:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-14 15:06:16,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-14 15:06:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-14 15:06:16,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-14 15:06:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 15:06:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-14 15:06:16,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-14 15:06:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-14 15:06:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-14 15:06:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-14 15:06:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-14 15:06:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-14 15:06:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-14 15:06:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-14 15:06:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-14 15:06:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-14 15:06:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-14 15:06:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-14 15:06:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-14 15:06:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 15:06:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-14 15:06:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-14 15:06:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-14 15:06:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-14 15:06:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-14 15:06:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-14 15:06:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-14 15:06:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-14 15:06:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-14 15:06:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-14 15:06:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-14 15:06:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-14 15:06:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-14 15:06:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-14 15:06:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:06:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-14 15:06:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-14 15:06:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-14 15:06:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-14 15:06:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-14 15:06:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-14 15:06:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-14 15:06:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-14 15:06:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-14 15:06:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-14 15:06:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-14 15:06:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-14 15:06:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-14 15:06:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-14 15:06:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-14 15:06:16,674 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-14 15:06:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-14 15:06:16,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-14 15:06:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:16,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-14 15:06:16,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-14 15:06:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-14 15:06:16,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-14 15:06:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-14 15:06:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-14 15:06:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-14 15:06:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-14 15:06:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-14 15:06:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-14 15:06:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-14 15:06:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-14 15:06:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-14 15:06:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-14 15:06:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-14 15:06:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-14 15:06:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-14 15:06:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-14 15:06:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-14 15:06:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-14 15:06:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-14 15:06:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-14 15:06:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-14 15:06:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-14 15:06:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-14 15:06:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-14 15:06:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-14 15:06:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-14 15:06:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-14 15:06:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-14 15:06:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-14 15:06:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-14 15:06:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:06:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-14 15:06:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-14 15:06:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:06:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:06:17,266 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:06:17,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:06:30,189 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:06:30,216 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:06:30,216 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 15:06:30,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:30 BoogieIcfgContainer [2021-12-14 15:06:30,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:06:30,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:06:30,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:06:30,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:06:30,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:06:14" (1/3) ... [2021-12-14 15:06:30,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f42bff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:30, skipping insertion in model container [2021-12-14 15:06:30,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15" (2/3) ... [2021-12-14 15:06:30,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f42bff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:30, skipping insertion in model container [2021-12-14 15:06:30,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:30" (3/3) ... [2021-12-14 15:06:30,233 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2021-12-14 15:06:30,238 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:06:30,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:06:30,303 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:06:30,310 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 [2021-12-14 15:06:30,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:06:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2021-12-14 15:06:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-14 15:06:30,395 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:06:30,396 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] [2021-12-14 15:06:30,396 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:06:30,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:06:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2021-12-14 15:06:30,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:06:30,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246825479] [2021-12-14 15:06:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:06:30,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms