./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 01:20:28,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:20:28,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:20:28,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:20:28,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:20:28,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:20:28,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:20:28,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:20:28,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:20:28,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:20:28,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:20:28,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:20:28,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:20:28,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:20:28,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:20:28,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:20:28,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:20:28,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:20:28,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:20:28,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:20:28,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:20:28,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:20:28,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:20:28,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:20:28,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:20:28,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:20:28,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:20:28,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:20:28,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:20:28,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:20:28,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:20:28,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:20:28,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:20:28,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:20:28,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:20:28,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:20:28,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:20:28,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:20:28,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:20:28,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:20:28,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:20:28,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:20:28,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:20:28,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:20:28,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:20:28,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:20:28,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:20:28,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:20:28,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:20:28,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:20:28,528 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:20:28,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:20:28,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:20:28,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:20:28,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:20:28,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:20:28,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:20:28,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:20:28,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:20:28,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:20:28,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:20:28,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:20:28,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:20:28,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:20:28,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:20:28,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:20:28,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:20:28,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:20:28,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:20:28,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-16 01:20:28,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:20:28,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:20:28,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:20:28,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:20:28,748 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:20:28,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-16 01:20:28,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba30a949/8091861334b44380a3b1cc409caaa178/FLAGb3c60b297 [2021-12-16 01:20:29,354 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:20:29,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-16 01:20:29,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba30a949/8091861334b44380a3b1cc409caaa178/FLAGb3c60b297 [2021-12-16 01:20:29,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba30a949/8091861334b44380a3b1cc409caaa178 [2021-12-16 01:20:29,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:20:29,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:20:29,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:20:29,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:20:29,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:20:29,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:29" (1/1) ... [2021-12-16 01:20:29,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3253870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:29, skipping insertion in model container [2021-12-16 01:20:29,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:29" (1/1) ... [2021-12-16 01:20:29,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:20:29,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:20:29,866 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] [2021-12-16 01:20:30,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:20:30,242 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:20:30,251 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] [2021-12-16 01:20:30,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:20:30,515 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:20:30,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30 WrapperNode [2021-12-16 01:20:30,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:20:30,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:20:30,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:20:30,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:20:30,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,745 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-16 01:20:30,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:20:30,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:20:30,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:20:30,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:20:30,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:30,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:31,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:20:31,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:20:31,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:20:31,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:20:31,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2021-12-16 01:20:31,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:20:31,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:20:31,041 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) [2021-12-16 01:20:31,057 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 [2021-12-16 01:20:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-16 01:20:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-16 01:20:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-16 01:20:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-16 01:20:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 01:20:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-16 01:20:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-16 01:20:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-16 01:20:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-16 01:20:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-16 01:20:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-16 01:20:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-16 01:20:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-16 01:20:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-16 01:20:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-16 01:20:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-16 01:20:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-16 01:20:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-16 01:20:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-16 01:20:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-16 01:20:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-16 01:20:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 01:20:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-16 01:20:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-16 01:20:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-16 01:20:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-16 01:20:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-16 01:20:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-16 01:20:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-16 01:20:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-16 01:20:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-16 01:20:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-16 01:20:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-16 01:20:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-16 01:20:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-16 01:20:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-16 01:20:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:20:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-16 01:20:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-16 01:20:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-16 01:20:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-16 01:20:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-16 01:20:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-16 01:20:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-16 01:20:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-16 01:20:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-16 01:20:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-16 01:20:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-16 01:20:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-16 01:20:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-16 01:20:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-16 01:20:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-16 01:20:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-16 01:20:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-16 01:20:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-16 01:20:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-16 01:20:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-16 01:20:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-16 01:20:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-16 01:20:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-16 01:20:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-16 01:20:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-16 01:20:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-16 01:20:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-16 01:20:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-16 01:20:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-16 01:20:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-16 01:20:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-16 01:20:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-16 01:20:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-16 01:20:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-16 01:20:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-16 01:20:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-16 01:20:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-16 01:20:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-16 01:20:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-16 01:20:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-16 01:20:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-16 01:20:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-16 01:20:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-16 01:20:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-16 01:20:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-16 01:20:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-16 01:20:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-16 01:20:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-16 01:20:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-16 01:20:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-16 01:20:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-16 01:20:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-16 01:20:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:20:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-16 01:20:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-16 01:20:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:20:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:20:31,530 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:20:31,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:20:47,506 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:20:47,527 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:20:47,527 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-16 01:20:47,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:47 BoogieIcfgContainer [2021-12-16 01:20:47,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:20:47,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:20:47,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:20:47,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:20:47,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:20:29" (1/3) ... [2021-12-16 01:20:47,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592dbd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:47, skipping insertion in model container [2021-12-16 01:20:47,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (2/3) ... [2021-12-16 01:20:47,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592dbd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:47, skipping insertion in model container [2021-12-16 01:20:47,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:47" (3/3) ... [2021-12-16 01:20:47,540 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-16 01:20:47,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:20:47,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:20:47,599 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:20:47,605 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 [2021-12-16 01:20:47,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:20:47,666 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) [2021-12-16 01:20:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-16 01:20:47,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:20:47,690 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] [2021-12-16 01:20:47,690 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:20:47,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:20:47,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-16 01:20:47,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:20:47,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806668359] [2021-12-16 01:20:47,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:20:47,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms