./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 f4b24e32 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-?-f4b24e3 [2022-07-13 18:33:46,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:33:46,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:33:46,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:33:46,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:33:46,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:33:46,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:33:46,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:33:46,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:33:46,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:33:46,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:33:46,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:33:46,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:33:46,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:33:46,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:33:46,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:33:46,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:33:46,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:33:46,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:33:46,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:33:46,784 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:33:46,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:33:46,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:33:46,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:33:46,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:33:46,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:33:46,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:33:46,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:33:46,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:33:46,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:33:46,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:33:46,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:33:46,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:33:46,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:33:46,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:33:46,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:33:46,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:33:46,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:33:46,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:33:46,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:33:46,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:33:46,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:33:46,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:33:46,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:33:46,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:33:46,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:33:46,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:33:46,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:33:46,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:33:46,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:33:46,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:33:46,837 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:33:46,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:33:46,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:33:46,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:33:46,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:33:46,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:33:46,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:33:46,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:33:46,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:33:46,839 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:33:46,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:33:46,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:33:46,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:33:46,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:33:46,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:33:46,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:33:46,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:46,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:33:46,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:33:46,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:33:46,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:33:46,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:33:46,841 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:33:46,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:33:46,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:33:46,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-07-13 18:33:47,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:33:47,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:33:47,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:33:47,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:33:47,044 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:33:47,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-07-13 18:33:47,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaebe557/8d4d019d8371492a89168502b2207ab5/FLAG631086ad2 [2022-07-13 18:33:47,573 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:33:47,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-07-13 18:33:47,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaebe557/8d4d019d8371492a89168502b2207ab5/FLAG631086ad2 [2022-07-13 18:33:47,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaebe557/8d4d019d8371492a89168502b2207ab5 [2022-07-13 18:33:47,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:33:47,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:33:47,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:47,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:33:47,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:33:47,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:47" (1/1) ... [2022-07-13 18:33:47,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44998017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:47, skipping insertion in model container [2022-07-13 18:33:47,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:47" (1/1) ... [2022-07-13 18:33:47,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:33:47,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:33:47,879 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.2-1.c[1871,1884] [2022-07-13 18:33:48,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:48,281 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:33:48,289 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] [2022-07-13 18:33:48,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:48,501 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:33:48,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48 WrapperNode [2022-07-13 18:33:48,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:48,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:48,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:33:48,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:33:48,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,723 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-07-13 18:33:48,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:48,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:33:48,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:33:48,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:33:48,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:48,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:49,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:33:49,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:33:49,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:33:49,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:33:49,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (1/1) ... [2022-07-13 18:33:49,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:49,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:33:49,051 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) [2022-07-13 18:33:49,062 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 [2022-07-13 18:33:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-13 18:33:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-13 18:33:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-13 18:33:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-13 18:33:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:33:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-13 18:33:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-13 18:33:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:33:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:33:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-13 18:33:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-13 18:33:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-13 18:33:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-13 18:33:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-13 18:33:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-13 18:33:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-13 18:33:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-13 18:33:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-13 18:33:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-13 18:33:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:33:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:33:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:33:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-13 18:33:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-13 18:33:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-13 18:33:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-13 18:33:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-13 18:33:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-13 18:33:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-13 18:33:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-13 18:33:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-13 18:33:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-13 18:33:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:33:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:33:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:33:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:33:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:33:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-13 18:33:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-13 18:33:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-13 18:33:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-13 18:33:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-13 18:33:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-13 18:33:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:33:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:33:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-13 18:33:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-13 18:33:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:33:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:33:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-13 18:33:49,105 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-13 18:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-13 18:33:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-13 18:33:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-13 18:33:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-13 18:33:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-13 18:33:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-13 18:33:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-13 18:33:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-13 18:33:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-13 18:33:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-13 18:33:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-13 18:33:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-13 18:33:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-13 18:33:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-13 18:33:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-13 18:33:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-13 18:33:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-13 18:33:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-13 18:33:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-13 18:33:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-13 18:33:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-13 18:33:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-13 18:33:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-13 18:33:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-13 18:33:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-13 18:33:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-13 18:33:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-13 18:33:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-13 18:33:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-13 18:33:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-13 18:33:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-13 18:33:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-13 18:33:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-13 18:33:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-13 18:33:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:33:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-13 18:33:49,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-13 18:33:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:33:49,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:33:49,663 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:33:49,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:34:03,185 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:34:03,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:34:03,221 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-13 18:34:03,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:34:03 BoogieIcfgContainer [2022-07-13 18:34:03,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:34:03,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:34:03,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:34:03,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:34:03,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:33:47" (1/3) ... [2022-07-13 18:34:03,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6e2bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:34:03, skipping insertion in model container [2022-07-13 18:34:03,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:48" (2/3) ... [2022-07-13 18:34:03,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6e2bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:34:03, skipping insertion in model container [2022-07-13 18:34:03,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:34:03" (3/3) ... [2022-07-13 18:34:03,232 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-07-13 18:34:03,241 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:34:03,241 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:34:03,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:34:03,320 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@24939e0e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27bc2adb [2022-07-13 18:34:03,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:34:03,329 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) [2022-07-13 18:34:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-13 18:34:03,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:34:03,356 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] [2022-07-13 18:34:03,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:34:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:34:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-07-13 18:34:03,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:34:03,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420217915] [2022-07-13 18:34:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:34:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms