./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 ff03de63 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-dev-ff03de6 [2021-12-21 13:36:18,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:36:18,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:36:18,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:36:18,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:36:18,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:36:18,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:36:18,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:36:18,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:36:18,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:36:18,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:36:18,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:36:18,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:36:18,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:36:18,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:36:18,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:36:18,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:36:18,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:36:18,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:36:18,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:36:18,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:36:18,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:36:18,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:36:18,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:36:18,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:36:18,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:36:18,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:36:18,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:36:18,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:36:18,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:36:18,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:36:18,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:36:18,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:36:18,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:36:18,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:36:18,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:36:18,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:36:18,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:36:18,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:36:18,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:36:18,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:36:18,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:36:18,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:36:18,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:36:18,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:36:18,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:36:18,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:36:18,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:36:18,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:36:18,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:36:18,703 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:36:18,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:36:18,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:36:18,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:36:18,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:36:18,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:36:18,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:36:18,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:36:18,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:36:18,705 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:36:18,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:36:18,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:36:18,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:36:18,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:36:18,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:36:18,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:36:18,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:36:18,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:36:18,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:36:18,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:36:18,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:36:18,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:36:18,708 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:36:18,708 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:36:18,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:36:18,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:36:18,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-21 13:36:18,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:36:18,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:36:18,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:36:18,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:36:18,968 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:36:18,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-21 13:36:19,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4789e9768/2c64fa8440b942b890c6f1d919b5665b/FLAGed7ecd914 [2021-12-21 13:36:19,558 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:36:19,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-21 13:36:19,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4789e9768/2c64fa8440b942b890c6f1d919b5665b/FLAGed7ecd914 [2021-12-21 13:36:19,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4789e9768/2c64fa8440b942b890c6f1d919b5665b [2021-12-21 13:36:19,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:36:19,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:36:19,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:36:19,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:36:19,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:36:19,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:19" (1/1) ... [2021-12-21 13:36:19,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd63e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:19, skipping insertion in model container [2021-12-21 13:36:19,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:19" (1/1) ... [2021-12-21 13:36:19,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:36:19,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:36:20,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-21 13:36:20,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:36:20,628 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:36:20,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-21 13:36:20,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:36:20,908 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:36:20,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20 WrapperNode [2021-12-21 13:36:20,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:36:20,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:36:20,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:36:20,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:36:20,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,239 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-21 13:36:21,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:36:21,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:36:21,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:36:21,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:36:21,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:36:21,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:36:21,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:36:21,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:36:21,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (1/1) ... [2021-12-21 13:36:21,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:36:21,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:36:21,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 13:36:21,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 13:36:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-21 13:36:21,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-21 13:36:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-21 13:36:21,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-21 13:36:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 13:36:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-21 13:36:21,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-21 13:36:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-21 13:36:21,652 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-21 13:36:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-21 13:36:21,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-21 13:36:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-21 13:36:21,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-21 13:36:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-21 13:36:21,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-21 13:36:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-21 13:36:21,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-21 13:36:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-21 13:36:21,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-21 13:36:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-21 13:36:21,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-21 13:36:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 13:36:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-21 13:36:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-21 13:36:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-21 13:36:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-21 13:36:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-21 13:36:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-21 13:36:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-21 13:36:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-21 13:36:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-21 13:36:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-21 13:36:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-21 13:36:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-21 13:36:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-21 13:36:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-21 13:36:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:36:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-21 13:36:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-21 13:36:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-21 13:36:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-21 13:36:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-21 13:36:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-21 13:36:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-21 13:36:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-21 13:36:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-21 13:36:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-21 13:36:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-21 13:36:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-21 13:36:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-21 13:36:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-21 13:36:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-21 13:36:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-21 13:36:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-21 13:36:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-21 13:36:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-21 13:36:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-21 13:36:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-21 13:36:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-21 13:36:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-21 13:36:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-21 13:36:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-21 13:36:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-21 13:36:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-21 13:36:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-21 13:36:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-21 13:36:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-21 13:36:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-21 13:36:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-21 13:36:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-21 13:36:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-21 13:36:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-21 13:36:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-21 13:36:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-21 13:36:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-21 13:36:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-21 13:36:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-21 13:36:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-21 13:36:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-21 13:36:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-21 13:36:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-21 13:36:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-21 13:36:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-21 13:36:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-21 13:36:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-21 13:36:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-21 13:36:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-21 13:36:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-21 13:36:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-21 13:36:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:36:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-21 13:36:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-21 13:36:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:36:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:36:22,266 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:36:22,268 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:36:40,081 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:36:40,112 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:36:40,112 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 13:36:40,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:40 BoogieIcfgContainer [2021-12-21 13:36:40,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:36:40,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:36:40,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:36:40,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:36:40,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:36:19" (1/3) ... [2021-12-21 13:36:40,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd9870e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:40, skipping insertion in model container [2021-12-21 13:36:40,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:20" (2/3) ... [2021-12-21 13:36:40,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd9870e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:40, skipping insertion in model container [2021-12-21 13:36:40,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:40" (3/3) ... [2021-12-21 13:36:40,126 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-21 13:36:40,131 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:36:40,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:36:40,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:36:40,184 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:36:40,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:36:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-21 13:36:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-21 13:36:40,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:36:40,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:36:40,280 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:36:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:36:40,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-21 13:36:40,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:36:40,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483951506] [2021-12-21 13:36:40,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:36:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms