./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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.3-2.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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:37:12,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:37:12,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:37:12,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:37:12,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:37:12,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:37:12,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:37:12,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:37:12,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:37:12,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:37:12,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:37:12,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:37:12,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:37:12,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:37:12,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:37:12,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:37:12,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:37:12,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:37:12,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:37:12,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:37:12,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:37:12,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:37:12,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:37:12,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:37:12,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:37:12,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:37:12,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:37:12,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:37:12,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:37:12,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:37:12,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:37:12,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:37:12,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:37:12,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:37:12,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:37:12,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:37:12,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:37:12,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:37:12,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:37:12,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:37:12,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:37:12,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:37:12,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:37:12,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:37:12,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:37:12,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:37:12,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:37:12,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:37:12,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:37:12,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:37:12,558 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:37:12,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:37:12,559 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:37:12,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:37:12,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:37:12,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:37:12,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:37:12,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:37:12,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:37:12,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:37:12,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:37:12,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:37:12,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:37:12,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:37:12,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:37:12,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:37:12,562 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:37:12,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:37:12,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:37:12,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2022-02-20 18:37:12,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:37:12,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:37:12,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:37:12,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:37:12,782 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:37:12,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-02-20 18:37:12,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e207476/8fa5ce12b8a641c18e6f0afef5b709ea/FLAGa9e732c49 [2022-02-20 18:37:13,319 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:37:13,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-02-20 18:37:13,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e207476/8fa5ce12b8a641c18e6f0afef5b709ea/FLAGa9e732c49 [2022-02-20 18:37:13,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e207476/8fa5ce12b8a641c18e6f0afef5b709ea [2022-02-20 18:37:13,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:37:13,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:37:13,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:37:13,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:37:13,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:37:13,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1968fc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:13, skipping insertion in model container [2022-02-20 18:37:13,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:37:13" (1/1) ... [2022-02-20 18:37:13,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:37:13,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:37:14,080 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.3-2.c[1871,1884] [2022-02-20 18:37:14,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:37:14,516 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:37:14,527 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.3-2.c[1871,1884] [2022-02-20 18:37:14,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:37:14,817 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:37:14,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14 WrapperNode [2022-02-20 18:37:14,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:37:14,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:37:14,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:37:14,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:37:14,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:14,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,076 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-02-20 18:37:15,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:37:15,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:37:15,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:37:15,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:37:15,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:37:15,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:37:15,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:37:15,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:37:15,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (1/1) ... [2022-02-20 18:37:15,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:37:15,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:37:15,443 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) [2022-02-20 18:37:15,449 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 [2022-02-20 18:37:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-02-20 18:37:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-02-20 18:37:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-02-20 18:37:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-02-20 18:37:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 18:37:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-02-20 18:37:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-02-20 18:37:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-02-20 18:37:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-02-20 18:37:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-02-20 18:37:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-02-20 18:37:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-02-20 18:37:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-02-20 18:37:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-02-20 18:37:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-02-20 18:37:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-02-20 18:37:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-02-20 18:37:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-02-20 18:37:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-02-20 18:37:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-02-20 18:37:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-02-20 18:37:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 18:37:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-02-20 18:37:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-02-20 18:37:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-02-20 18:37:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-02-20 18:37:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-02-20 18:37:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-02-20 18:37:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-02-20 18:37:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-02-20 18:37:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-02-20 18:37:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-02-20 18:37:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-02-20 18:37:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-02-20 18:37:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-02-20 18:37:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-02-20 18:37:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:37:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-02-20 18:37:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-02-20 18:37:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-02-20 18:37:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-02-20 18:37:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-02-20 18:37:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-02-20 18:37:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-02-20 18:37:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-02-20 18:37:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-02-20 18:37:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-02-20 18:37:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-02-20 18:37:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-02-20 18:37:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-02-20 18:37:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-02-20 18:37:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-02-20 18:37:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-02-20 18:37:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-02-20 18:37:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-02-20 18:37:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-02-20 18:37:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-02-20 18:37:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-02-20 18:37:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-02-20 18:37:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-02-20 18:37:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-02-20 18:37:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-02-20 18:37:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-02-20 18:37:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-02-20 18:37:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-02-20 18:37:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-02-20 18:37:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-02-20 18:37:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-02-20 18:37:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-02-20 18:37:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-02-20 18:37:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-02-20 18:37:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-02-20 18:37:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-02-20 18:37:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-02-20 18:37:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-02-20 18:37:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-02-20 18:37:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-02-20 18:37:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-02-20 18:37:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-02-20 18:37:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-02-20 18:37:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-02-20 18:37:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-02-20 18:37:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-02-20 18:37:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-02-20 18:37:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-02-20 18:37:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-02-20 18:37:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-02-20 18:37:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-02-20 18:37:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-02-20 18:37:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:37:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-02-20 18:37:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-02-20 18:37:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:37:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:37:15,917 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:37:15,921 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:37:34,058 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:37:34,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:37:34,086 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 18:37:34,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:34 BoogieIcfgContainer [2022-02-20 18:37:34,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:37:34,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:37:34,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:37:34,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:37:34,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:37:13" (1/3) ... [2022-02-20 18:37:34,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d8dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:34, skipping insertion in model container [2022-02-20 18:37:34,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:37:14" (2/3) ... [2022-02-20 18:37:34,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d8dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:34, skipping insertion in model container [2022-02-20 18:37:34,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:34" (3/3) ... [2022-02-20 18:37:34,096 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-02-20 18:37:34,116 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:37:34,116 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:37:34,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:37:34,169 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 [2022-02-20 18:37:34,169 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:37:34,225 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) [2022-02-20 18:37:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-20 18:37:34,245 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:37:34,246 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] [2022-02-20 18:37:34,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:37:34,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:37:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-02-20 18:37:34,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:37:34,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839222479] [2022-02-20 18:37:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:37:34,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms