./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 ae007674 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-dev-ae00767 [2021-12-28 01:17:23,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 01:17:23,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 01:17:23,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 01:17:23,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 01:17:23,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 01:17:23,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 01:17:23,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 01:17:23,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 01:17:23,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 01:17:23,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 01:17:23,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 01:17:23,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 01:17:23,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 01:17:23,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 01:17:23,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 01:17:23,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 01:17:23,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 01:17:23,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 01:17:23,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 01:17:23,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 01:17:23,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 01:17:23,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 01:17:23,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 01:17:23,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 01:17:23,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 01:17:23,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 01:17:23,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 01:17:23,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 01:17:23,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 01:17:23,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 01:17:23,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 01:17:23,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 01:17:23,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 01:17:23,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 01:17:23,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 01:17:23,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 01:17:23,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 01:17:23,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 01:17:23,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 01:17:23,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 01:17:23,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 01:17:23,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 01:17:23,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 01:17:23,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 01:17:23,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 01:17:23,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 01:17:23,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 01:17:23,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 01:17:23,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 01:17:23,332 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 01:17:23,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 01:17:23,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 01:17:23,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 01:17:23,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 01:17:23,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 01:17:23,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 01:17:23,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 01:17:23,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 01:17:23,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 01:17:23,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:17:23,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 01:17:23,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 01:17:23,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 01:17:23,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 01:17:23,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 01:17:23,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 01:17:23,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 01:17:23,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 01:17:23,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2021-12-28 01:17:23,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 01:17:23,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 01:17:23,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 01:17:23,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 01:17:23,613 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 01:17:23,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-28 01:17:23,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d605e976/559d904f34ef49dfb179c1be45699037/FLAGa5a494481 [2021-12-28 01:17:24,389 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 01:17:24,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-28 01:17:24,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d605e976/559d904f34ef49dfb179c1be45699037/FLAGa5a494481 [2021-12-28 01:17:24,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d605e976/559d904f34ef49dfb179c1be45699037 [2021-12-28 01:17:24,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 01:17:24,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 01:17:24,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 01:17:24,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 01:17:24,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 01:17:24,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:24,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4178b501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:24, skipping insertion in model container [2021-12-28 01:17:24,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:17:24" (1/1) ... [2021-12-28 01:17:24,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 01:17:24,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 01:17:25,020 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] [2021-12-28 01:17:25,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:17:25,389 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 01:17:25,398 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] [2021-12-28 01:17:25,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:17:25,574 INFO L208 MainTranslator]: Completed translation [2021-12-28 01:17:25,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25 WrapperNode [2021-12-28 01:17:25,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 01:17:25,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 01:17:25,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 01:17:25,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 01:17:25,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:25,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:25,850 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-28 01:17:25,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 01:17:25,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 01:17:25,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 01:17:25,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 01:17:25,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:25,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:25,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:25,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:26,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:26,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:26,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:26,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 01:17:26,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 01:17:26,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 01:17:26,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 01:17:26,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (1/1) ... [2021-12-28 01:17:26,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:17:26,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 01:17:26,108 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) [2021-12-28 01:17:26,128 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 [2021-12-28 01:17:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-28 01:17:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-28 01:17:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-28 01:17:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-28 01:17:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 01:17:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-28 01:17:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-28 01:17:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-28 01:17:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-28 01:17:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-28 01:17:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-28 01:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-28 01:17:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-28 01:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-28 01:17:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-28 01:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-28 01:17:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-28 01:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-28 01:17:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-28 01:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-28 01:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-28 01:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 01:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-28 01:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-28 01:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-28 01:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-28 01:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-28 01:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-28 01:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-28 01:17:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-28 01:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-28 01:17:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-28 01:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-28 01:17:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-28 01:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-28 01:17:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-28 01:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 01:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-28 01:17:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-28 01:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-28 01:17:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-28 01:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-28 01:17:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-28 01:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-28 01:17:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-28 01:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-28 01:17:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-28 01:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-28 01:17:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-28 01:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-28 01:17:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-28 01:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-28 01:17:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-28 01:17:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-28 01:17:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-28 01:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-28 01:17:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-28 01:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-28 01:17:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-28 01:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-28 01:17:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-28 01:17:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-28 01:17:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-28 01:17:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-28 01:17:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-28 01:17:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-28 01:17:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-28 01:17:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-28 01:17:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-28 01:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-28 01:17:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-28 01:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-28 01:17:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-28 01:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-28 01:17:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-28 01:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-28 01:17:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-28 01:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-28 01:17:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-28 01:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-28 01:17:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-28 01:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-28 01:17:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-28 01:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-28 01:17:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-28 01:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-28 01:17:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-28 01:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-28 01:17:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-28 01:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 01:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-28 01:17:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-28 01:17:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 01:17:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 01:17:26,813 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 01:17:26,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 01:17:43,719 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 01:17:43,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 01:17:43,746 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-28 01:17:43,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:17:43 BoogieIcfgContainer [2021-12-28 01:17:43,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 01:17:43,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 01:17:43,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 01:17:43,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 01:17:43,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 01:17:24" (1/3) ... [2021-12-28 01:17:43,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cda9536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:17:43, skipping insertion in model container [2021-12-28 01:17:43,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:25" (2/3) ... [2021-12-28 01:17:43,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cda9536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:17:43, skipping insertion in model container [2021-12-28 01:17:43,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:17:43" (3/3) ... [2021-12-28 01:17:43,758 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2021-12-28 01:17:43,801 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 01:17:43,805 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 01:17:43,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 01:17:43,867 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 [2021-12-28 01:17:43,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 01:17:43,929 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) [2021-12-28 01:17:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 01:17:43,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:17:43,944 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] [2021-12-28 01:17:43,945 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:17:43,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:17:43,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-28 01:17:43,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:17:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191293664] [2021-12-28 01:17:43,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:17:43,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms