./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 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.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-?-791161d [2022-07-22 18:12:19,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:12:19,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:12:19,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:12:19,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:12:19,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:12:19,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:12:19,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:12:19,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:12:19,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:12:19,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:12:19,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:12:19,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:12:19,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:12:19,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:12:19,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:12:19,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:12:19,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:12:19,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:12:19,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:12:19,103 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:12:19,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:12:19,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:12:19,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:12:19,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:12:19,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:12:19,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:12:19,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:12:19,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:12:19,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:12:19,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:12:19,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:12:19,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:12:19,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:12:19,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:12:19,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:12:19,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:12:19,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:12:19,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:12:19,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:12:19,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:12:19,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:12:19,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:12:19,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:12:19,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:12:19,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:12:19,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:12:19,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:12:19,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:12:19,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:12:19,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:12:19,147 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:12:19,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:12:19,148 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:12:19,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:12:19,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:12:19,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:12:19,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:12:19,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:12:19,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:12:19,149 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:12:19,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:12:19,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:12:19,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:12:19,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:12:19,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:12:19,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:12:19,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:12:19,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:12:19,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:12:19,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-07-22 18:12:19,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:12:19,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:12:19,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:12:19,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:12:19,388 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:12:19,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-07-22 18:12:19,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f681cd1c/9b95e8a5a31b4303a248f0f201eaf282/FLAG726142514 [2022-07-22 18:12:19,969 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:12:19,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-07-22 18:12:19,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f681cd1c/9b95e8a5a31b4303a248f0f201eaf282/FLAG726142514 [2022-07-22 18:12:20,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f681cd1c/9b95e8a5a31b4303a248f0f201eaf282 [2022-07-22 18:12:20,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:12:20,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:12:20,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:12:20,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:12:20,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:12:20,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:12:20" (1/1) ... [2022-07-22 18:12:20,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c21e43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:20, skipping insertion in model container [2022-07-22 18:12:20,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:12:20" (1/1) ... [2022-07-22 18:12:20,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:12:20,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:12:20,567 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] [2022-07-22 18:12:20,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:12:21,024 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:12:21,037 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] [2022-07-22 18:12:21,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:12:21,290 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:12:21,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21 WrapperNode [2022-07-22 18:12:21,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:12:21,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:12:21,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:12:21,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:12:21,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,600 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-07-22 18:12:21,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:12:21,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:12:21,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:12:21,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:12:21,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:12:21,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:12:21,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:12:21,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:12:21,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (1/1) ... [2022-07-22 18:12:21,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:12:21,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:12:21,988 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 18:12:22,040 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 18:12:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-22 18:12:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-22 18:12:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-22 18:12:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-22 18:12:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 18:12:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-22 18:12:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-22 18:12:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-22 18:12:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-22 18:12:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-22 18:12:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-22 18:12:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-22 18:12:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-22 18:12:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-22 18:12:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-22 18:12:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-22 18:12:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-22 18:12:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-22 18:12:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-22 18:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-22 18:12:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-22 18:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 18:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-22 18:12:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-22 18:12:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-22 18:12:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-22 18:12:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-22 18:12:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-22 18:12:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-22 18:12:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-22 18:12:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-22 18:12:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-22 18:12:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-22 18:12:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-22 18:12:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-22 18:12:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-22 18:12:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:12:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-22 18:12:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-22 18:12:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-22 18:12:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-22 18:12:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-22 18:12:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-22 18:12:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-22 18:12:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-22 18:12:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-22 18:12:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-22 18:12:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-22 18:12:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-22 18:12:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-22 18:12:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-22 18:12:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-22 18:12:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-22 18:12:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-22 18:12:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-22 18:12:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-22 18:12:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-22 18:12:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-22 18:12:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-22 18:12:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-22 18:12:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-22 18:12:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-22 18:12:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-22 18:12:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-22 18:12:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-22 18:12:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-22 18:12:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-22 18:12:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-22 18:12:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-22 18:12:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-22 18:12:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-22 18:12:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-22 18:12:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-22 18:12:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-22 18:12:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-22 18:12:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-22 18:12:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-22 18:12:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-22 18:12:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-22 18:12:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-22 18:12:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-22 18:12:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-22 18:12:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-22 18:12:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-22 18:12:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-22 18:12:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-22 18:12:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-22 18:12:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-22 18:12:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-22 18:12:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:12:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-22 18:12:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-22 18:12:22,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:12:22,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:12:22,534 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:12:22,535 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:12:34,900 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:12:34,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:12:34,923 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 18:12:34,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:12:34 BoogieIcfgContainer [2022-07-22 18:12:34,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:12:34,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:12:34,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:12:34,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:12:34,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:12:20" (1/3) ... [2022-07-22 18:12:34,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636624cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:12:34, skipping insertion in model container [2022-07-22 18:12:34,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:12:21" (2/3) ... [2022-07-22 18:12:34,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636624cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:12:34, skipping insertion in model container [2022-07-22 18:12:34,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:12:34" (3/3) ... [2022-07-22 18:12:34,934 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-07-22 18:12:34,944 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:12:34,945 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 18:12:35,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:12:35,041 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@226b67f4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@16aa75d3 [2022-07-22 18:12:35,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 18:12:35,053 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) [2022-07-22 18:12:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-22 18:12:35,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:12:35,080 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 18:12:35,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 18:12:35,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:12:35,087 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-07-22 18:12:35,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:12:35,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448067594] [2022-07-22 18:12:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:12:35,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms