./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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.2-2.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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:33:48,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:33:48,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:33:48,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:33:48,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:33:48,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:33:48,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:33:48,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:33:48,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:33:48,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:33:48,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:33:48,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:33:48,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:33:48,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:33:48,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:33:48,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:33:48,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:33:48,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:33:48,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:33:48,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:33:48,081 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:33:48,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:33:48,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:33:48,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:33:48,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:33:48,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:33:48,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:33:48,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:33:48,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:33:48,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:33:48,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:33:48,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:33:48,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:33:48,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:33:48,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:33:48,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:33:48,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:33:48,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:33:48,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:33:48,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:33:48,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:33:48,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:33:48,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:33:48,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:33:48,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:33:48,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:33:48,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:33:48,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:33:48,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:33:48,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:33:48,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:33:48,120 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:33:48,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:33:48,120 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:33:48,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:33:48,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:33:48,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:33:48,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:33:48,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:33:48,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:33:48,122 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:33:48,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:33:48,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:33:48,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:33:48,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:33:48,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:33:48,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:33:48,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:48,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:33:48,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:33:48,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:33:48,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:33:48,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:33:48,125 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:33:48,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:33:48,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:33:48,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-07-13 18:33:48,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:33:48,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:33:48,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:33:48,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:33:48,354 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:33:48,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-07-13 18:33:48,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f1b73e1/379ffa2ed77348a7a1cf6e67c4e7e9c1/FLAG206bf889a [2022-07-13 18:33:49,051 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:33:49,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-07-13 18:33:49,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f1b73e1/379ffa2ed77348a7a1cf6e67c4e7e9c1/FLAG206bf889a [2022-07-13 18:33:49,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f1b73e1/379ffa2ed77348a7a1cf6e67c4e7e9c1 [2022-07-13 18:33:49,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:33:49,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:33:49,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:49,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:33:49,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:33:49,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:49" (1/1) ... [2022-07-13 18:33:49,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c72ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:49, skipping insertion in model container [2022-07-13 18:33:49,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:49" (1/1) ... [2022-07-13 18:33:49,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:33:49,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:33:49,539 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.2-2.c[1870,1883] [2022-07-13 18:33:50,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:50,036 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:33:50,047 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.2-2.c[1870,1883] [2022-07-13 18:33:50,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:50,378 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:33:50,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50 WrapperNode [2022-07-13 18:33:50,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:50,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:50,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:33:50,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:33:50,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,671 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-07-13 18:33:50,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:50,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:33:50,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:33:50,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:33:50,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:50,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:33:50,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:33:50,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:33:50,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:33:50,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (1/1) ... [2022-07-13 18:33:51,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:33:51,033 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) [2022-07-13 18:33:51,046 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 [2022-07-13 18:33:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-13 18:33:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-13 18:33:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-13 18:33:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-13 18:33:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:33:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-13 18:33:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-13 18:33:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:33:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:33:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-13 18:33:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-13 18:33:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-13 18:33:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-13 18:33:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-13 18:33:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-13 18:33:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-13 18:33:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-13 18:33:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-13 18:33:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-13 18:33:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:33:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:33:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:33:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-13 18:33:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-13 18:33:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-13 18:33:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-13 18:33:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-13 18:33:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-13 18:33:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-13 18:33:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-13 18:33:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-13 18:33:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-13 18:33:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:33:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:33:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:33:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:33:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:33:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-13 18:33:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-13 18:33:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-13 18:33:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-13 18:33:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-13 18:33:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-13 18:33:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:33:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:33:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-13 18:33:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-13 18:33:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:33:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:33:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-13 18:33:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-13 18:33:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-13 18:33:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-13 18:33:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-13 18:33:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-13 18:33:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-13 18:33:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-13 18:33:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-13 18:33:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-13 18:33:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-13 18:33:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-13 18:33:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-13 18:33:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-13 18:33:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-13 18:33:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-13 18:33:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-13 18:33:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-13 18:33:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-13 18:33:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-13 18:33:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-13 18:33:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-13 18:33:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-13 18:33:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-13 18:33:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-13 18:33:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-13 18:33:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-13 18:33:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-13 18:33:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-13 18:33:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-13 18:33:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-13 18:33:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-13 18:33:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-13 18:33:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-13 18:33:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-13 18:33:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-13 18:33:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-13 18:33:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-07-13 18:33:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:33:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-13 18:33:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-13 18:33:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:33:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:33:51,745 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:33:51,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:34:06,207 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:34:06,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:34:06,233 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-13 18:34:06,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:34:06 BoogieIcfgContainer [2022-07-13 18:34:06,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:34:06,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:34:06,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:34:06,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:34:06,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:33:49" (1/3) ... [2022-07-13 18:34:06,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194e03f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:34:06, skipping insertion in model container [2022-07-13 18:34:06,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:50" (2/3) ... [2022-07-13 18:34:06,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194e03f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:34:06, skipping insertion in model container [2022-07-13 18:34:06,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:34:06" (3/3) ... [2022-07-13 18:34:06,250 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-07-13 18:34:06,262 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:34:06,263 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:34:06,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:34:06,369 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@14620f1c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@741785b4 [2022-07-13 18:34:06,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:34:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2022-07-13 18:34:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-13 18:34:06,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:34:06,405 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] [2022-07-13 18:34:06,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:34:06,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:34:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2022-07-13 18:34:06,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:34:06,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161777975] [2022-07-13 18:34:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:34:06,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms