./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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.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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:53:16,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:53:16,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:53:16,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:53:16,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:53:16,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:53:16,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:53:16,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:53:16,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:53:16,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:53:16,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:53:16,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:53:16,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:53:16,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:53:16,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:53:16,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:53:16,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:53:16,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:53:16,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:53:16,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:53:16,472 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:53:16,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:53:16,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:53:16,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:53:16,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:53:16,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:53:16,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:53:16,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:53:16,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:53:16,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:53:16,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:53:16,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:53:16,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:53:16,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:53:16,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:53:16,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:53:16,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:53:16,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:53:16,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:53:16,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:53:16,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:53:16,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:53:16,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:53:16,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:53:16,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:53:16,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:53:16,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:53:16,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:53:16,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:53:16,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:53:16,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:53:16,529 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:53:16,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:53:16,530 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:53:16,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:53:16,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:53:16,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:53:16,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:53:16,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:53:16,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:53:16,531 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:53:16,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:53:16,532 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:53:16,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:53:16,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:53:16,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:53:16,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:53:16,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:16,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:53:16,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:53:16,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:53:16,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:53:16,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:53:16,535 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:53:16,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:53:16,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:53:16,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-07-12 06:53:16,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:53:16,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:53:16,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:53:16,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:53:16,800 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:53:16,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-07-12 06:53:16,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e16ffd/2f93b4ca97164cc09cc98650e1b80f0d/FLAG5e9ba24bc [2022-07-12 06:53:17,360 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:53:17,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-07-12 06:53:17,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e16ffd/2f93b4ca97164cc09cc98650e1b80f0d/FLAG5e9ba24bc [2022-07-12 06:53:17,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e16ffd/2f93b4ca97164cc09cc98650e1b80f0d [2022-07-12 06:53:17,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:53:17,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:53:17,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:17,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:53:17,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:53:17,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:17" (1/1) ... [2022-07-12 06:53:17,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c724b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:17, skipping insertion in model container [2022-07-12 06:53:17,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:17" (1/1) ... [2022-07-12 06:53:17,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:53:17,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:53:18,150 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.1.c[1868,1881] [2022-07-12 06:53:18,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:18,527 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:53:18,537 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.1.c[1868,1881] [2022-07-12 06:53:18,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:18,790 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:53:18,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18 WrapperNode [2022-07-12 06:53:18,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:18,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:18,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:53:18,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:53:18,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:18,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,072 INFO L137 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-07-12 06:53:19,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:19,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:53:19,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:53:19,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:53:19,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:53:19,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:53:19,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:53:19,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:53:19,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (1/1) ... [2022-07-12 06:53:19,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:19,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:53:19,322 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) [2022-07-12 06:53:19,329 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 [2022-07-12 06:53:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-12 06:53:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-12 06:53:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-12 06:53:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-12 06:53:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 06:53:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-12 06:53:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-12 06:53:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-12 06:53:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-12 06:53:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-12 06:53:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-12 06:53:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-12 06:53:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-12 06:53:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 06:53:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-12 06:53:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-12 06:53:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-12 06:53:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-12 06:53:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-12 06:53:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-12 06:53:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-12 06:53:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-12 06:53:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-12 06:53:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-12 06:53:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-12 06:53:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-12 06:53:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-12 06:53:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-12 06:53:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:53:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-12 06:53:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-12 06:53:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-12 06:53:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-12 06:53:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-12 06:53:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-12 06:53:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-12 06:53:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-12 06:53:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-12 06:53:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-12 06:53:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-12 06:53:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-12 06:53:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-12 06:53:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-12 06:53:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-12 06:53:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-12 06:53:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-12 06:53:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-12 06:53:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-12 06:53:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-12 06:53:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-12 06:53:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-12 06:53:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-12 06:53:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-12 06:53:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-12 06:53:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-12 06:53:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-12 06:53:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-12 06:53:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-12 06:53:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-12 06:53:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-12 06:53:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-12 06:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-12 06:53:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-12 06:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-12 06:53:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-12 06:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-12 06:53:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-12 06:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-12 06:53:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-12 06:53:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:53:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:53:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:53:19,912 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:53:19,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:53:31,603 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:53:31,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:53:31,653 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 06:53:31,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:31 BoogieIcfgContainer [2022-07-12 06:53:31,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:53:31,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:53:31,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:53:31,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:53:31,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:53:17" (1/3) ... [2022-07-12 06:53:31,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d096eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:31, skipping insertion in model container [2022-07-12 06:53:31,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:18" (2/3) ... [2022-07-12 06:53:31,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d096eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:31, skipping insertion in model container [2022-07-12 06:53:31,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:31" (3/3) ... [2022-07-12 06:53:31,671 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-07-12 06:53:31,680 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:53:31,680 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:53:31,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:53:31,765 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@6a1b5c0a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@656f2902 [2022-07-12 06:53:31,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:53:31,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-07-12 06:53:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-12 06:53:31,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:53:31,799 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] [2022-07-12 06:53:31,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:53:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:53:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-07-12 06:53:31,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:53:31,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726625503] [2022-07-12 06:53:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:53:31,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms