./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 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.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-?-f4b24e3 [2022-07-13 18:33:49,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:33:49,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:33:49,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:33:49,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:33:49,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:33:49,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:33:49,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:33:49,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:33:49,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:33:49,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:33:49,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:33:49,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:33:49,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:33:49,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:33:49,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:33:49,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:33:49,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:33:49,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:33:49,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:33:49,218 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:33:49,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:33:49,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:33:49,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:33:49,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:33:49,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:33:49,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:33:49,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:33:49,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:33:49,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:33:49,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:33:49,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:33:49,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:33:49,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:33:49,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:33:49,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:33:49,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:33:49,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:33:49,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:33:49,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:33:49,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:33:49,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:33:49,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:33:49,259 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:33:49,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:33:49,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:33:49,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:33:49,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:33:49,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:33:49,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:33:49,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:33:49,263 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:33:49,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:33:49,264 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:33:49,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:33:49,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:33:49,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:33:49,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:33:49,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:33:49,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:33:49,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:33:49,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:49,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:33:49,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:33:49,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:33:49,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:33:49,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:33:49,267 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:33:49,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:33:49,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:33:49,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2022-07-13 18:33:49,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:33:49,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:33:49,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:33:49,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:33:49,449 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:33:49,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-07-13 18:33:49,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd345b2d/c15e6f5a366c47e6b2f8d91f354e9e55/FLAGc12235a35 [2022-07-13 18:33:49,962 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:33:49,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-07-13 18:33:49,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd345b2d/c15e6f5a366c47e6b2f8d91f354e9e55/FLAGc12235a35 [2022-07-13 18:33:50,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd345b2d/c15e6f5a366c47e6b2f8d91f354e9e55 [2022-07-13 18:33:50,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:33:50,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:33:50,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:50,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:33:50,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:33:50,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15611bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50, skipping insertion in model container [2022-07-13 18:33:50,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:33:50,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:33:50,457 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] [2022-07-13 18:33:50,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:50,845 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:33:50,856 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] [2022-07-13 18:33:51,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:51,033 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:33:51,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51 WrapperNode [2022-07-13 18:33:51,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:51,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:51,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:33:51,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:33:51,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,256 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-07-13 18:33:51,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:51,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:33:51,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:33:51,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:33:51,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:33:51,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:33:51,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:33:51,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:33:51,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (1/1) ... [2022-07-13 18:33:51,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:51,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:33:51,520 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 18:33:51,532 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 18:33:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-13 18:33:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-13 18:33:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-13 18:33:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-13 18:33:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:33:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-13 18:33:51,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-13 18:33:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:33:51,554 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:33:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:51,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-13 18:33:51,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-13 18:33:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-13 18:33:51,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-13 18:33:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-13 18:33:51,555 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-13 18:33:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-13 18:33:51,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-13 18:33:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-13 18:33:51,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-13 18:33:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:33:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:33:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:33:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-13 18:33:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-13 18:33:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-13 18:33:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-13 18:33:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-13 18:33:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-13 18:33:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-13 18:33:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-13 18:33:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-13 18:33:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-13 18:33:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:33:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:33:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:33:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:33:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:33:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-13 18:33:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-13 18:33:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-13 18:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-13 18:33:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-13 18:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-13 18:33:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:33:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-13 18:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-13 18:33:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:33:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-13 18:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-13 18:33:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-13 18:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-13 18:33:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-13 18:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-13 18:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-13 18:33:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-13 18:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-13 18:33:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-13 18:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-13 18:33:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-13 18:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-13 18:33:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-13 18:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-13 18:33:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-13 18:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-13 18:33:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-13 18:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-13 18:33:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-13 18:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-13 18:33:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-13 18:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-13 18:33:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-13 18:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-13 18:33:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-13 18:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-13 18:33:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-13 18:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-13 18:33:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-13 18:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-13 18:33:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-13 18:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-13 18:33:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-13 18:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-13 18:33:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-13 18:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-13 18:33:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-13 18:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:33:51,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:33:52,103 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:33:52,105 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:34:08,312 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:34:08,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:34:08,328 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-13 18:34:08,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:34:08 BoogieIcfgContainer [2022-07-13 18:34:08,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:34:08,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:34:08,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:34:08,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:34:08,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:33:50" (1/3) ... [2022-07-13 18:34:08,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d31ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:34:08, skipping insertion in model container [2022-07-13 18:34:08,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:51" (2/3) ... [2022-07-13 18:34:08,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d31ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:34:08, skipping insertion in model container [2022-07-13 18:34:08,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:34:08" (3/3) ... [2022-07-13 18:34:08,338 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-07-13 18:34:08,347 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:34:08,347 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:34:08,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:34:08,422 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@22b223c5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2d19c3f1 [2022-07-13 18:34:08,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:34:08,438 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) [2022-07-13 18:34:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-13 18:34:08,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:34:08,467 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 18:34:08,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:34:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:34:08,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-07-13 18:34:08,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:34:08,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071608300] [2022-07-13 18:34:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:34:08,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms