./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.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.3-1.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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:06:14,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:06:14,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:06:14,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:06:14,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:06:14,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:06:14,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:06:14,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:06:14,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:06:14,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:06:14,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:06:14,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:06:14,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:06:14,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:06:14,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:06:14,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:06:14,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:06:14,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:06:14,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:06:14,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:06:14,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:06:14,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:06:14,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:06:14,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:06:14,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:06:14,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:06:14,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:06:14,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:06:14,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:06:14,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:06:14,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:06:14,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:06:14,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:06:14,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:06:14,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:06:14,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:06:14,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:06:14,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:06:14,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:06:14,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:06:14,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:06:14,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:06:14,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:06:14,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:06:14,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:06:14,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:06:14,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:06:14,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:06:14,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:06:14,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:06:14,263 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:06:14,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:06:14,264 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:06:14,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:06:14,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:06:14,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:06:14,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:06:14,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:06:14,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:06:14,265 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:06:14,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:06:14,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:06:14,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:06:14,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:06:14,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:06:14,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:06:14,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:14,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:06:14,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:06:14,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:06:14,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:06:14,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:06:14,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:06:14,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:06:14,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:06:14,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:06:14,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-14 15:06:14,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:06:14,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:06:14,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:06:14,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:06:14,484 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:06:14,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-14 15:06:14,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38ac36db/14f99e44e19d4954ba7668c142d9c326/FLAG2ce580b0c [2021-12-14 15:06:15,037 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:06:15,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-14 15:06:15,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38ac36db/14f99e44e19d4954ba7668c142d9c326/FLAG2ce580b0c [2021-12-14 15:06:15,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38ac36db/14f99e44e19d4954ba7668c142d9c326 [2021-12-14 15:06:15,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:06:15,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:06:15,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:15,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:06:15,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:06:15,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:15,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f62990b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:15, skipping insertion in model container [2021-12-14 15:06:15,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:15" (1/1) ... [2021-12-14 15:06:15,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:06:15,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:06:15,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-14 15:06:16,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:16,216 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:06:16,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-14 15:06:16,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:16,445 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:06:16,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16 WrapperNode [2021-12-14 15:06:16,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:16,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:16,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:06:16,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:06:16,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,660 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-14 15:06:16,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:16,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:06:16,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:06:16,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:06:16,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:06:16,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:06:16,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:06:16,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:06:16,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (1/1) ... [2021-12-14 15:06:16,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:16,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:06:16,962 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 15:06:16,969 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 15:06:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-14 15:06:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-14 15:06:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-14 15:06:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-14 15:06:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 15:06:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-14 15:06:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-14 15:06:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-14 15:06:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-14 15:06:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-14 15:06:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-14 15:06:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-14 15:06:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-14 15:06:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-14 15:06:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-14 15:06:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-14 15:06:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-14 15:06:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-14 15:06:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-14 15:06:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 15:06:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-14 15:06:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-14 15:06:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-14 15:06:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-14 15:06:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-14 15:06:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-14 15:06:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-14 15:06:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-14 15:06:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-14 15:06:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-14 15:06:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-14 15:06:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-14 15:06:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-14 15:06:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-14 15:06:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:06:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-14 15:06:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-14 15:06:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-14 15:06:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-14 15:06:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-14 15:06:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-14 15:06:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-14 15:06:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-14 15:06:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-14 15:06:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-14 15:06:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-14 15:06:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-14 15:06:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-14 15:06:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-14 15:06:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-14 15:06:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-14 15:06:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-14 15:06:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-14 15:06:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-14 15:06:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-14 15:06:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-14 15:06:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-14 15:06:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-14 15:06:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-14 15:06:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-14 15:06:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-14 15:06:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-14 15:06:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-14 15:06:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-14 15:06:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-14 15:06:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-14 15:06:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-14 15:06:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-14 15:06:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-14 15:06:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-14 15:06:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-14 15:06:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-14 15:06:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-14 15:06:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-14 15:06:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-14 15:06:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-14 15:06:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-14 15:06:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-14 15:06:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-14 15:06:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-14 15:06:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-14 15:06:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-14 15:06:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-14 15:06:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-14 15:06:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-14 15:06:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:06:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-14 15:06:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-14 15:06:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:06:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:06:17,501 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:06:17,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:06:33,236 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:06:33,270 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:06:33,270 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 15:06:33,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:33 BoogieIcfgContainer [2021-12-14 15:06:33,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:06:33,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:06:33,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:06:33,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:06:33,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:06:15" (1/3) ... [2021-12-14 15:06:33,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a0d440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:33, skipping insertion in model container [2021-12-14 15:06:33,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:16" (2/3) ... [2021-12-14 15:06:33,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a0d440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:33, skipping insertion in model container [2021-12-14 15:06:33,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:33" (3/3) ... [2021-12-14 15:06:33,284 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-14 15:06:33,288 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:06:33,288 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:06:33,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:06:33,373 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 15:06:33,374 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:06:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-14 15:06:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-14 15:06:33,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:06:33,467 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 15:06:33,468 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:06:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:06:33,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-14 15:06:33,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:06:33,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201237356] [2021-12-14 15:06:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:06:33,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms