./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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.2-1.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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:34:19,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:34:19,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:34:19,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:34:19,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:34:19,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:34:19,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:34:19,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:34:19,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:34:19,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:34:19,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:34:19,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:34:19,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:34:19,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:34:19,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:34:19,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:34:19,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:34:19,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:34:19,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:34:19,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:34:19,108 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:34:19,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:34:19,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:34:19,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:34:19,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:34:19,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:34:19,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:34:19,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:34:19,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:34:19,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:34:19,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:34:19,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:34:19,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:34:19,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:34:19,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:34:19,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:34:19,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:34:19,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:34:19,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:34:19,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:34:19,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:34:19,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:34:19,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:34:19,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:34:19,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:34:19,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:34:19,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:34:19,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:34:19,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:34:19,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:34:19,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:34:19,176 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:34:19,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:34:19,177 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:34:19,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:34:19,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:34:19,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:34:19,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:34:19,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:34:19,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:34:19,186 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:34:19,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:34:19,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:34:19,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:34:19,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:34:19,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:34:19,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:34:19,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:34:19,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:34:19,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:34:19,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:34:19,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:34:19,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:34:19,188 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:34:19,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:34:19,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:34:19,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-07-21 05:34:19,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:34:19,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:34:19,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:34:19,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:34:19,600 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:34:19,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-07-21 05:34:19,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/157189e35/fb9359f9a7af4dee9fe52b561f54b5cd/FLAGd24f27823 [2022-07-21 05:34:20,361 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:34:20,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-07-21 05:34:20,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/157189e35/fb9359f9a7af4dee9fe52b561f54b5cd/FLAGd24f27823 [2022-07-21 05:34:20,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/157189e35/fb9359f9a7af4dee9fe52b561f54b5cd [2022-07-21 05:34:20,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:34:20,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:34:20,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:34:20,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:34:20,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:34:20,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:34:20" (1/1) ... [2022-07-21 05:34:20,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17402f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:20, skipping insertion in model container [2022-07-21 05:34:20,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:34:20" (1/1) ... [2022-07-21 05:34:20,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:34:20,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:34:20,777 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.2-1.c[1871,1884] [2022-07-21 05:34:21,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:34:21,387 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:34:21,402 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.2-1.c[1871,1884] [2022-07-21 05:34:21,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:34:21,745 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:34:21,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21 WrapperNode [2022-07-21 05:34:21,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:34:21,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:34:21,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:34:21,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:34:21,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:21,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,086 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-07-21 05:34:22,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:34:22,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:34:22,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:34:22,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:34:22,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:34:22,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:34:22,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:34:22,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:34:22,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (1/1) ... [2022-07-21 05:34:22,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:34:22,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:34:22,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:34:22,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:34:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-21 05:34:22,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-21 05:34:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-21 05:34:22,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-21 05:34:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 05:34:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-21 05:34:22,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-21 05:34:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-21 05:34:22,559 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-21 05:34:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-21 05:34:22,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-21 05:34:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-21 05:34:22,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-21 05:34:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-21 05:34:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-21 05:34:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-21 05:34:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-21 05:34:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-21 05:34:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-21 05:34:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-21 05:34:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-21 05:34:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 05:34:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-21 05:34:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-21 05:34:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-21 05:34:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-21 05:34:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-21 05:34:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-21 05:34:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-21 05:34:22,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-21 05:34:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-21 05:34:22,562 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-21 05:34:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-21 05:34:22,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-21 05:34:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-21 05:34:22,563 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-21 05:34:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:34:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-21 05:34:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-21 05:34:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-21 05:34:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-21 05:34:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-21 05:34:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-21 05:34:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-21 05:34:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-21 05:34:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-21 05:34:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-21 05:34:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-21 05:34:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-21 05:34:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-21 05:34:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-21 05:34:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-21 05:34:22,566 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-21 05:34:22,567 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-21 05:34:22,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-21 05:34:22,567 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-21 05:34:22,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-21 05:34:22,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-21 05:34:22,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-21 05:34:22,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-21 05:34:22,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-21 05:34:22,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-21 05:34:22,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-21 05:34:22,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-21 05:34:22,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-21 05:34:22,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-21 05:34:22,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-21 05:34:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-21 05:34:22,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-21 05:34:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-21 05:34:22,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-21 05:34:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-21 05:34:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-21 05:34:22,571 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-21 05:34:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-21 05:34:22,571 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-21 05:34:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-21 05:34:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-21 05:34:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-21 05:34:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-21 05:34:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-21 05:34:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-21 05:34:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-21 05:34:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-21 05:34:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-21 05:34:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-21 05:34:22,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-21 05:34:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-21 05:34:22,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-21 05:34:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:34:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-21 05:34:22,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-21 05:34:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:34:22,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:34:23,322 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:34:23,332 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:34:37,972 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:34:38,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:34:38,008 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 05:34:38,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:34:38 BoogieIcfgContainer [2022-07-21 05:34:38,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:34:38,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:34:38,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:34:38,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:34:38,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:34:20" (1/3) ... [2022-07-21 05:34:38,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34612c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:34:38, skipping insertion in model container [2022-07-21 05:34:38,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:21" (2/3) ... [2022-07-21 05:34:38,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34612c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:34:38, skipping insertion in model container [2022-07-21 05:34:38,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:34:38" (3/3) ... [2022-07-21 05:34:38,022 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-07-21 05:34:38,035 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:34:38,036 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:34:38,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:34:38,159 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@28afc176, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ca794e0 [2022-07-21 05:34:38,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:34:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-07-21 05:34:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 05:34:38,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:34:38,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:34:38,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:34:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:34:38,202 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-07-21 05:34:38,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:34:38,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121978515] [2022-07-21 05:34:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:34:38,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms