./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.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.4.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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:34:35,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:34:35,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:34:35,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:34:35,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:34:35,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:34:35,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:34:35,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:34:35,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:34:35,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:34:35,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:34:35,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:34:35,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:34:35,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:34:35,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:34:35,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:34:35,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:34:35,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:34:35,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:34:35,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:34:35,087 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:34:35,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:34:35,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:34:35,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:34:35,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:34:35,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:34:35,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:34:35,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:34:35,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:34:35,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:34:35,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:34:35,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:34:35,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:34:35,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:34:35,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:34:35,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:34:35,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:34:35,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:34:35,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:34:35,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:34:35,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:34:35,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:34:35,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:34:35,149 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:34:35,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:34:35,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:34:35,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:34:35,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:34:35,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:34:35,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:34:35,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:34:35,153 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:34:35,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:34:35,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:34:35,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:34:35,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:34:35,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:34:35,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:34:35,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:34:35,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:34:35,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:34:35,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:34:35,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:34:35,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:34:35,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:34:35,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:34:35,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:34:35,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:34:35,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:34:35,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:34:35,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:34:35,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:34:35,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:34:35,167 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:34:35,167 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:34:35,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:34:35,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-07-21 05:34:35,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:34:35,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:34:35,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:34:35,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:34:35,511 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:34:35,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-07-21 05:34:35,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9102892d5/47a3fa464fd840cfb8e6c3b20697278e/FLAGe83a3ef12 [2022-07-21 05:34:36,192 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:34:36,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-07-21 05:34:36,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9102892d5/47a3fa464fd840cfb8e6c3b20697278e/FLAGe83a3ef12 [2022-07-21 05:34:36,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9102892d5/47a3fa464fd840cfb8e6c3b20697278e [2022-07-21 05:34:36,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:34:36,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:34:36,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:34:36,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:34:36,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:34:36,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:34:36" (1/1) ... [2022-07-21 05:34:36,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f778c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:36, skipping insertion in model container [2022-07-21 05:34:36,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:34:36" (1/1) ... [2022-07-21 05:34:36,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:34:36,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:34:36,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-07-21 05:34:37,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:34:37,209 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:34:37,224 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.4.c[1868,1881] [2022-07-21 05:34:37,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:34:37,528 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:34:37,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37 WrapperNode [2022-07-21 05:34:37,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:34:37,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:34:37,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:34:37,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:34:37,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:37,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:37,965 INFO L137 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-07-21 05:34:37,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:34:37,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:34:37,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:34:37,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:34:37,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:37,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:34:38,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:34:38,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:34:38,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:34:38,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (1/1) ... [2022-07-21 05:34:38,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:34:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:34:38,417 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 05:34:38,476 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 05:34:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-21 05:34:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-21 05:34:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-21 05:34:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-21 05:34:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 05:34:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-21 05:34:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-21 05:34:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-21 05:34:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-21 05:34:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-21 05:34:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-21 05:34:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-21 05:34:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-21 05:34:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-21 05:34:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-21 05:34:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-21 05:34:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-21 05:34:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-21 05:34:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-21 05:34:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-21 05:34:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-21 05:34:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 05:34:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-21 05:34:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-21 05:34:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-21 05:34:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-21 05:34:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-21 05:34:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-21 05:34:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-21 05:34:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-21 05:34:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-21 05:34:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-21 05:34:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-21 05:34:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-21 05:34:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-21 05:34:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-21 05:34:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:34:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-21 05:34:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-21 05:34:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-21 05:34:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-21 05:34:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-21 05:34:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-21 05:34:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-21 05:34:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-21 05:34:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-21 05:34:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-21 05:34:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-21 05:34:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-21 05:34:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-21 05:34:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-21 05:34:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-21 05:34:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-21 05:34:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-21 05:34:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-21 05:34:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-21 05:34:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-21 05:34:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-21 05:34:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-21 05:34:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-21 05:34:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-21 05:34:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-21 05:34:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-21 05:34:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-21 05:34:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-21 05:34:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-21 05:34:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-21 05:34:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-21 05:34:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-21 05:34:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-21 05:34:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-21 05:34:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-21 05:34:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-21 05:34:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-21 05:34:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-21 05:34:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-21 05:34:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-21 05:34:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-21 05:34:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-21 05:34:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-21 05:34:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-21 05:34:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-21 05:34:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-21 05:34:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-21 05:34:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-21 05:34:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-21 05:34:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-21 05:34:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-21 05:34:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-21 05:34:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:34:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-21 05:34:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-21 05:34:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:34:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:34:39,207 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:34:39,209 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:35:01,384 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:35:01,421 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:35:01,422 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 05:35:01,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:35:01 BoogieIcfgContainer [2022-07-21 05:35:01,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:35:01,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:35:01,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:35:01,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:35:01,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:34:36" (1/3) ... [2022-07-21 05:35:01,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a94e40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:35:01, skipping insertion in model container [2022-07-21 05:35:01,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:37" (2/3) ... [2022-07-21 05:35:01,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a94e40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:35:01, skipping insertion in model container [2022-07-21 05:35:01,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:35:01" (3/3) ... [2022-07-21 05:35:01,437 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-07-21 05:35:01,451 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:35:01,452 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:35:01,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:35:01,581 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@24fb2646, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b4564b6 [2022-07-21 05:35:01,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:35:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2022-07-21 05:35:01,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 05:35:01,644 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:35:01,645 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 05:35:01,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:35:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:35:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-07-21 05:35:01,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:35:01,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230737976] [2022-07-21 05:35:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:35:01,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms