./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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.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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:06:18,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:06:18,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:06:18,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:06:18,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:06:18,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:06:18,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:06:18,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:06:18,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:06:18,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:06:18,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:06:18,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:06:18,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:06:18,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:06:18,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:06:18,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:06:18,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:06:18,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:06:18,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:06:18,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:06:18,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:06:18,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:06:18,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:06:18,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:06:18,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:06:18,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:06:18,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:06:18,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:06:18,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:06:18,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:06:18,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:06:18,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:06:18,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:06:18,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:06:18,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:06:18,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:06:18,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:06:18,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:06:18,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:06:18,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:06:18,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:06:18,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:06:18,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:06:18,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:06:18,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:06:18,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:06:18,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:06:18,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:06:18,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:06:18,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:06:18,147 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:06:18,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:06:18,148 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:06:18,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:06:18,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:06:18,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:06:18,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:06:18,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:06:18,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:06:18,150 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:06:18,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:06:18,150 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:06:18,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:06:18,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:06:18,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:06:18,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:06:18,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:18,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:06:18,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:06:18,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:06:18,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:06:18,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:06:18,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:06:18,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:06:18,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:06:18,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:06:18,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2021-12-14 15:06:18,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:06:18,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:06:18,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:06:18,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:06:18,415 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:06:18,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-14 15:06:18,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f2c7c88/e9c0bbf05e3e4096845c74a44cd78247/FLAG5b00cbe0d [2021-12-14 15:06:19,014 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:06:19,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-14 15:06:19,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f2c7c88/e9c0bbf05e3e4096845c74a44cd78247/FLAG5b00cbe0d [2021-12-14 15:06:19,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f2c7c88/e9c0bbf05e3e4096845c74a44cd78247 [2021-12-14 15:06:19,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:06:19,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:06:19,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:19,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:06:19,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:06:19,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:19" (1/1) ... [2021-12-14 15:06:19,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763ffb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:19, skipping insertion in model container [2021-12-14 15:06:19,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:19" (1/1) ... [2021-12-14 15:06:19,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:06:19,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:06:19,486 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.3-2.c[1871,1884] [2021-12-14 15:06:19,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:19,948 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:06:19,959 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.3-2.c[1871,1884] [2021-12-14 15:06:20,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:20,200 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:06:20,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20 WrapperNode [2021-12-14 15:06:20,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:20,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:20,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:06:20,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:06:20,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,517 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-14 15:06:20,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:20,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:06:20,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:06:20,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:06:20,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:06:20,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:06:20,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:06:20,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:06:20,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2021-12-14 15:06:20,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:20,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:06:20,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 15:06:20,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 15:06:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-14 15:06:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-14 15:06:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-14 15:06:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-14 15:06:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 15:06:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-14 15:06:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-14 15:06:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-14 15:06:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-14 15:06:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-14 15:06:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-14 15:06:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-14 15:06:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-14 15:06:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-14 15:06:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-14 15:06:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-14 15:06:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-14 15:06:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-14 15:06:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-14 15:06:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 15:06:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-14 15:06:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-14 15:06:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-14 15:06:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-14 15:06:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-14 15:06:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-14 15:06:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-14 15:06:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-14 15:06:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-14 15:06:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-14 15:06:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-14 15:06:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-14 15:06:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-14 15:06:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-14 15:06:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:06:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-14 15:06:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-14 15:06:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-14 15:06:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-14 15:06:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-14 15:06:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-14 15:06:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-14 15:06:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-14 15:06:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-14 15:06:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-14 15:06:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-14 15:06:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-14 15:06:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-14 15:06:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-14 15:06:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-14 15:06:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-14 15:06:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-14 15:06:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-14 15:06:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-14 15:06:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-14 15:06:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-14 15:06:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-14 15:06:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-14 15:06:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-14 15:06:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-14 15:06:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-14 15:06:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-14 15:06:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-14 15:06:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-14 15:06:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-14 15:06:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-14 15:06:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-14 15:06:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-14 15:06:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-14 15:06:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-14 15:06:20,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-14 15:06:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-14 15:06:20,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-14 15:06:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-14 15:06:20,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-14 15:06:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-14 15:06:20,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-14 15:06:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-14 15:06:20,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-14 15:06:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-14 15:06:20,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-14 15:06:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-14 15:06:20,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-14 15:06:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-14 15:06:20,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-14 15:06:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:06:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-14 15:06:20,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-14 15:06:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:06:20,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:06:21,603 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:06:21,606 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:06:38,014 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:06:38,041 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:06:38,042 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 15:06:38,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:38 BoogieIcfgContainer [2021-12-14 15:06:38,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:06:38,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:06:38,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:06:38,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:06:38,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:06:19" (1/3) ... [2021-12-14 15:06:38,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0c0d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:38, skipping insertion in model container [2021-12-14 15:06:38,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (2/3) ... [2021-12-14 15:06:38,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0c0d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:38, skipping insertion in model container [2021-12-14 15:06:38,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:38" (3/3) ... [2021-12-14 15:06:38,054 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2021-12-14 15:06:38,058 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:06:38,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:06:38,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:06:38,115 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 15:06:38,115 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:06:38,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-14 15:06:38,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-14 15:06:38,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:06:38,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:06:38,206 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:06:38,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:06:38,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-14 15:06:38,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:06:38,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71394047] [2021-12-14 15:06:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:06:38,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms