./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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.1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 16:02:51,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:02:51,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:02:51,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:02:51,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:02:51,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:02:51,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:02:51,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:02:51,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:02:51,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:02:51,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:02:51,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:02:51,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:02:51,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:02:51,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:02:51,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:02:51,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:02:51,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:02:51,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:02:51,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:02:51,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:02:51,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:02:51,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:02:51,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:02:51,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:02:51,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:02:51,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:02:51,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:02:51,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:02:51,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:02:51,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:02:51,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:02:51,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:02:51,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:02:51,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:02:51,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:02:51,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:02:51,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:02:51,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:02:51,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:02:51,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:02:51,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:02:51,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:02:51,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:02:51,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:02:51,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:02:51,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:02:51,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:02:51,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:02:51,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:02:51,291 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:02:51,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:02:51,292 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:02:51,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:02:51,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:02:51,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:02:51,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:02:51,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:02:51,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:02:51,293 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:02:51,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:02:51,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:02:51,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:02:51,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:02:51,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:02:51,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:02:51,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:02:51,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:02:51,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:02:51,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:02:51,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:02:51,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:02:51,295 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:02:51,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:02:51,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:02:51,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:02:51,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2021-12-17 16:02:51,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:02:51,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:02:51,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:02:51,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:02:51,537 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:02:51,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2021-12-17 16:02:51,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4ccdc61e/afd3f41e65884201adb93b777683efb8/FLAGa28d87887 [2021-12-17 16:02:52,105 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:02:52,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2021-12-17 16:02:52,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4ccdc61e/afd3f41e65884201adb93b777683efb8/FLAGa28d87887 [2021-12-17 16:02:52,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4ccdc61e/afd3f41e65884201adb93b777683efb8 [2021-12-17 16:02:52,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:02:52,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:02:52,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:02:52,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:02:52,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:02:52,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:02:52" (1/1) ... [2021-12-17 16:02:52,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22755d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:52, skipping insertion in model container [2021-12-17 16:02:52,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:02:52" (1/1) ... [2021-12-17 16:02:52,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:02:52,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:02:52,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2021-12-17 16:02:53,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:02:53,251 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:02:53,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2021-12-17 16:02:53,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:02:53,482 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:02:53,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53 WrapperNode [2021-12-17 16:02:53,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:02:53,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:02:53,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:02:53,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:02:53,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,703 INFO L137 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2021-12-17 16:02:53,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:02:53,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:02:53,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:02:53,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:02:53,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:02:53,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:02:53,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:02:53,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:02:53,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (1/1) ... [2021-12-17 16:02:53,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:02:53,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:02:54,009 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) [2021-12-17 16:02:54,026 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 [2021-12-17 16:02:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-17 16:02:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-17 16:02:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-17 16:02:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-17 16:02:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 16:02:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-17 16:02:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-17 16:02:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-17 16:02:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-17 16:02:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-17 16:02:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-17 16:02:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-17 16:02:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-17 16:02:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-17 16:02:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-17 16:02:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-17 16:02:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-17 16:02:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-17 16:02:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-17 16:02:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-17 16:02:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-17 16:02:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 16:02:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-17 16:02:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-17 16:02:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-17 16:02:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-17 16:02:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-17 16:02:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-17 16:02:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-17 16:02:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-17 16:02:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-17 16:02:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-17 16:02:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-17 16:02:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-17 16:02:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-17 16:02:54,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-17 16:02:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:02:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-17 16:02:54,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-17 16:02:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-17 16:02:54,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-17 16:02:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-17 16:02:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-17 16:02:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-17 16:02:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-17 16:02:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-17 16:02:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-17 16:02:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-17 16:02:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-17 16:02:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-17 16:02:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-17 16:02:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-17 16:02:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-17 16:02:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-17 16:02:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-17 16:02:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-17 16:02:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-17 16:02:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-17 16:02:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-17 16:02:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-17 16:02:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-17 16:02:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-17 16:02:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-17 16:02:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-17 16:02:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-17 16:02:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-17 16:02:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-17 16:02:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-17 16:02:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-17 16:02:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-17 16:02:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-17 16:02:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-17 16:02:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-17 16:02:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-17 16:02:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-17 16:02:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-17 16:02:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-17 16:02:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-17 16:02:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-17 16:02:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-17 16:02:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-17 16:02:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-17 16:02:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-17 16:02:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-17 16:02:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-17 16:02:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-17 16:02:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-17 16:02:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-17 16:02:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-17 16:02:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:02:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-17 16:02:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-17 16:02:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:02:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:02:54,600 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:02:54,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:03:06,442 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:03:06,467 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:03:06,468 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-17 16:03:06,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:03:06 BoogieIcfgContainer [2021-12-17 16:03:06,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:03:06,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:03:06,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:03:06,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:03:06,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:02:52" (1/3) ... [2021-12-17 16:03:06,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa06131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:03:06, skipping insertion in model container [2021-12-17 16:03:06,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:02:53" (2/3) ... [2021-12-17 16:03:06,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa06131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:03:06, skipping insertion in model container [2021-12-17 16:03:06,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:03:06" (3/3) ... [2021-12-17 16:03:06,479 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2021-12-17 16:03:06,485 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:03:06,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 16:03:06,535 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:03:06,541 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 [2021-12-17 16:03:06,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 16:03:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2021-12-17 16:03:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-17 16:03:06,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:03:06,617 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] [2021-12-17 16:03:06,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 16:03:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:03:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2021-12-17 16:03:06,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:03:06,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503874026] [2021-12-17 16:03:06,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:03:06,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms