./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:20:23,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:20:23,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:20:23,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:20:23,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:20:23,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:20:23,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:20:23,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:20:23,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:20:23,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:20:23,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:20:23,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:20:23,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:20:23,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:20:23,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:20:23,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:20:23,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:20:23,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:20:23,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:20:23,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:20:23,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:20:23,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:20:23,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:20:23,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:20:23,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:20:23,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:20:23,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:20:23,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:20:23,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:20:23,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:20:23,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:20:23,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:20:23,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:20:23,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:20:23,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:20:23,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:20:23,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:20:23,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:20:23,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:20:23,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:20:23,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:20:23,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:20:23,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:20:23,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:20:23,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:20:23,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:20:23,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:20:23,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:20:23,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:20:23,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:20:23,997 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:20:23,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:20:23,998 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:20:23,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:20:23,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:20:23,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:20:23,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:20:23,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:20:23,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:20:23,999 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:20:24,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:20:24,000 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:20:24,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:20:24,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:20:24,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:20:24,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:20:24,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:20:24,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:20:24,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:20:24,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:20:24,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:20:24,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:20:24,003 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:20:24,003 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:20:24,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:20:24,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:20:24,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2021-12-16 01:20:24,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:20:24,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:20:24,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:20:24,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:20:24,285 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:20:24,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-12-16 01:20:24,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b712460e5/8dcbc7c81f8247729b2bb65540858bfe/FLAGee2eaa5d8 [2021-12-16 01:20:24,991 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:20:24,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-12-16 01:20:25,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b712460e5/8dcbc7c81f8247729b2bb65540858bfe/FLAGee2eaa5d8 [2021-12-16 01:20:25,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b712460e5/8dcbc7c81f8247729b2bb65540858bfe [2021-12-16 01:20:25,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:20:25,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:20:25,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:20:25,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:20:25,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:20:25,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:25" (1/1) ... [2021-12-16 01:20:25,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67969740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:25, skipping insertion in model container [2021-12-16 01:20:25,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:25" (1/1) ... [2021-12-16 01:20:25,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:20:25,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:20:25,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2021-12-16 01:20:26,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:20:26,048 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:20:26,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2021-12-16 01:20:26,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:20:26,364 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:20:26,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26 WrapperNode [2021-12-16 01:20:26,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:20:26,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:20:26,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:20:26,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:20:26,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:26,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:26,690 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2021-12-16 01:20:26,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:20:26,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:20:26,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:20:26,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:20:26,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:26,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:26,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:26,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:27,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:27,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:27,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:27,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:20:27,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:20:27,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:20:27,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:20:27,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (1/1) ... [2021-12-16 01:20:27,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:20:27,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:20:27,237 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) [2021-12-16 01:20:27,262 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 [2021-12-16 01:20:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-16 01:20:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-16 01:20:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-16 01:20:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-16 01:20:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 01:20:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-16 01:20:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-16 01:20:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-16 01:20:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-16 01:20:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-16 01:20:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-16 01:20:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-16 01:20:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-16 01:20:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-16 01:20:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-16 01:20:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-16 01:20:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-16 01:20:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-16 01:20:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-16 01:20:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-16 01:20:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-16 01:20:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 01:20:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-16 01:20:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-16 01:20:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-16 01:20:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-16 01:20:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-16 01:20:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-16 01:20:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-16 01:20:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-16 01:20:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-16 01:20:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-16 01:20:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-16 01:20:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-16 01:20:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-16 01:20:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-16 01:20:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:20:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-16 01:20:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-16 01:20:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-16 01:20:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-16 01:20:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-16 01:20:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-16 01:20:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-16 01:20:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-16 01:20:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-16 01:20:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-16 01:20:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-16 01:20:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-16 01:20:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-16 01:20:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-16 01:20:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-16 01:20:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-16 01:20:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-16 01:20:27,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-16 01:20:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-16 01:20:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-16 01:20:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-16 01:20:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-16 01:20:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-16 01:20:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-16 01:20:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-16 01:20:27,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-16 01:20:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-16 01:20:27,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-16 01:20:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-16 01:20:27,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-16 01:20:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-16 01:20:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-16 01:20:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-16 01:20:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-16 01:20:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-16 01:20:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-16 01:20:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-16 01:20:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-16 01:20:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-16 01:20:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-16 01:20:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-16 01:20:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-16 01:20:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-16 01:20:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-16 01:20:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-16 01:20:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-16 01:20:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-16 01:20:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-16 01:20:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-16 01:20:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-16 01:20:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-16 01:20:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-16 01:20:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-16 01:20:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-16 01:20:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:20:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-16 01:20:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-16 01:20:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:20:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:20:27,886 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:20:27,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:20:40,230 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:20:40,249 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:20:40,249 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-16 01:20:40,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:40 BoogieIcfgContainer [2021-12-16 01:20:40,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:20:40,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:20:40,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:20:40,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:20:40,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:20:25" (1/3) ... [2021-12-16 01:20:40,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a5e80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:40, skipping insertion in model container [2021-12-16 01:20:40,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:26" (2/3) ... [2021-12-16 01:20:40,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a5e80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:40, skipping insertion in model container [2021-12-16 01:20:40,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:40" (3/3) ... [2021-12-16 01:20:40,264 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2021-12-16 01:20:40,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:20:40,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:20:40,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:20:40,323 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 [2021-12-16 01:20:40,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:20:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2021-12-16 01:20:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-16 01:20:40,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:20:40,413 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] [2021-12-16 01:20:40,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:20:40,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:20:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2021-12-16 01:20:40,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:20:40,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650445474] [2021-12-16 01:20:40,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:20:40,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms