./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-2.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/rekcba_ctm.3-2.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 78258e8e1e0a9153dcadc40b279c1b949f89012dbb716c6b1987705528a7bf55 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:30:47,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:30:47,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:30:47,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:30:47,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:30:47,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:30:47,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:30:47,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:30:47,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:30:47,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:30:47,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:30:47,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:30:47,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:30:47,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:30:47,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:30:47,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:30:47,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:30:47,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:30:47,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:30:47,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:30:47,137 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:30:47,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:30:47,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:30:47,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:30:47,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:30:47,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:30:47,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:30:47,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:30:47,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:30:47,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:30:47,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:30:47,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:30:47,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:30:47,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:30:47,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:30:47,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:30:47,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:30:47,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:30:47,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:30:47,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:30:47,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:30:47,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:30:47,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:30:47,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:30:47,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:30:47,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:30:47,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:30:47,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:30:47,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:30:47,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:30:47,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:30:47,196 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:30:47,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:30:47,197 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:30:47,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:30:47,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:30:47,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:30:47,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:30:47,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:30:47,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:30:47,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:30:47,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:30:47,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:30:47,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:30:47,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:30:47,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:30:47,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:30:47,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:30:47,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:30:47,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:30:47,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:30:47,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:30:47,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:30:47,200 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:30:47,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:30:47,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:30:47,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78258e8e1e0a9153dcadc40b279c1b949f89012dbb716c6b1987705528a7bf55 [2022-07-21 05:30:47,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:30:47,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:30:47,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:30:47,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:30:47,488 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:30:47,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-2.c [2022-07-21 05:30:47,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ba664fe0/94b6661e5c834140836d11f64fe4a961/FLAG0ef800bbd [2022-07-21 05:30:48,224 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:30:48,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-2.c [2022-07-21 05:30:48,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ba664fe0/94b6661e5c834140836d11f64fe4a961/FLAG0ef800bbd [2022-07-21 05:30:48,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ba664fe0/94b6661e5c834140836d11f64fe4a961 [2022-07-21 05:30:48,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:30:48,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:30:48,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:30:48,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:30:48,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:30:48,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:48" (1/1) ... [2022-07-21 05:30:48,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1a4e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:48, skipping insertion in model container [2022-07-21 05:30:48,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:48" (1/1) ... [2022-07-21 05:30:48,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:30:48,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:30:48,869 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/rekcba_ctm.3-2.c[2267,2280] [2022-07-21 05:30:49,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:30:49,753 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:30:49,769 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/rekcba_ctm.3-2.c[2267,2280] [2022-07-21 05:30:50,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:30:50,379 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:30:50,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50 WrapperNode [2022-07-21 05:30:50,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:30:50,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:30:50,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:30:50,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:30:50,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:50,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:51,484 INFO L137 Inliner]: procedures = 101, calls = 11881, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 39268 [2022-07-21 05:30:51,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:30:51,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:30:51,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:30:51,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:30:51,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:51,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:51,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:51,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:52,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:52,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:52,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:52,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:30:52,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:30:52,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:30:52,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:30:52,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (1/1) ... [2022-07-21 05:30:52,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:30:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:30:52,841 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 05:30:52,879 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 05:30:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-21 05:30:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-21 05:30:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-21 05:30:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-21 05:30:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 05:30:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-21 05:30:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-21 05:30:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-21 05:30:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-21 05:30:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-21 05:30:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-21 05:30:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-21 05:30:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-21 05:30:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-21 05:30:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-21 05:30:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-21 05:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-21 05:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-21 05:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-21 05:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 05:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-21 05:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-21 05:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-21 05:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-21 05:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-21 05:30:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-21 05:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-21 05:30:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-21 05:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-21 05:30:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-21 05:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-21 05:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-21 05:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-21 05:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-21 05:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-21 05:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-21 05:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-21 05:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-21 05:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-21 05:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-21 05:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-21 05:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-21 05:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-21 05:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-21 05:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-21 05:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-21 05:30:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-21 05:30:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-21 05:30:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-21 05:30:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-21 05:30:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-21 05:30:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-21 05:30:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-21 05:30:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-21 05:30:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-21 05:30:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-21 05:30:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-21 05:30:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-21 05:30:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-21 05:30:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-21 05:30:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-21 05:30:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-21 05:30:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-21 05:30:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-21 05:30:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-21 05:30:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-21 05:30:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-21 05:30:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-21 05:30:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-21 05:30:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-21 05:30:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-21 05:30:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-21 05:30:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-21 05:30:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-21 05:30:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-21 05:30:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-21 05:30:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-21 05:30:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-21 05:30:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-21 05:30:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-21 05:30:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-21 05:30:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-21 05:30:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-21 05:30:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-21 05:30:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-21 05:30:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-21 05:30:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:30:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-21 05:30:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-21 05:30:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:30:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:30:54,347 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:30:54,349 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:33:36,401 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:33:36,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:33:36,435 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 05:33:36,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:33:36 BoogieIcfgContainer [2022-07-21 05:33:36,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:33:36,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:33:36,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:33:36,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:33:36,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:30:48" (1/3) ... [2022-07-21 05:33:36,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d47c268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:33:36, skipping insertion in model container [2022-07-21 05:33:36,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:50" (2/3) ... [2022-07-21 05:33:36,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d47c268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:33:36, skipping insertion in model container [2022-07-21 05:33:36,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:33:36" (3/3) ... [2022-07-21 05:33:36,452 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.3-2.c [2022-07-21 05:33:36,462 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:33:36,463 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:33:36,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:33:36,612 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@117215f9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7bc2618c [2022-07-21 05:33:36,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:33:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 8447 states, 8032 states have (on average 1.5709661354581674) internal successors, (12618), 8056 states have internal predecessors, (12618), 370 states have call successors, (370), 43 states have call predecessors, (370), 43 states have return successors, (370), 360 states have call predecessors, (370), 370 states have call successors, (370) [2022-07-21 05:33:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3346 [2022-07-21 05:33:36,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:33:36,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:33:36,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:33:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:33:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash -391326380, now seen corresponding path program 1 times [2022-07-21 05:33:36,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:33:36,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507453834] [2022-07-21 05:33:36,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:33:36,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms