./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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.1.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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:36:11,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:36:11,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:36:11,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:36:11,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:36:11,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:36:11,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:36:11,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:36:11,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:36:11,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:36:11,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:36:11,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:36:11,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:36:11,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:36:11,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:36:11,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:36:11,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:36:11,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:36:11,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:36:12,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:36:12,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:36:12,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:36:12,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:36:12,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:36:12,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:36:12,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:36:12,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:36:12,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:36:12,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:36:12,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:36:12,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:36:12,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:36:12,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:36:12,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:36:12,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:36:12,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:36:12,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:36:12,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:36:12,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:36:12,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:36:12,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:36:12,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:36:12,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:36:12,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:36:12,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:36:12,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:36:12,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:36:12,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:36:12,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:36:12,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:36:12,052 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:36:12,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:36:12,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:36:12,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:36:12,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:36:12,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:36:12,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:36:12,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:36:12,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:36:12,055 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:36:12,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:36:12,055 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:36:12,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:36:12,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:36:12,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:36:12,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:36:12,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:36:12,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:36:12,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:36:12,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:36:12,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:36:12,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:36:12,058 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:36:12,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:36:12,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:36:12,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:36:12,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2021-12-21 13:36:12,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:36:12,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:36:12,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:36:12,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:36:12,313 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:36:12,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2021-12-21 13:36:12,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56693396d/7eac70c2414941aab456fe1d76b5f43e/FLAGe47e0e42e [2021-12-21 13:36:12,901 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:36:12,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2021-12-21 13:36:12,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56693396d/7eac70c2414941aab456fe1d76b5f43e/FLAGe47e0e42e [2021-12-21 13:36:13,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56693396d/7eac70c2414941aab456fe1d76b5f43e [2021-12-21 13:36:13,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:36:13,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:36:13,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:36:13,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:36:13,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:36:13,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:13" (1/1) ... [2021-12-21 13:36:13,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fd0f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:13, skipping insertion in model container [2021-12-21 13:36:13,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:13" (1/1) ... [2021-12-21 13:36:13,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:36:13,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:36:13,455 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.1.c[1868,1881] [2021-12-21 13:36:13,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:36:13,908 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:36:13,925 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.1.c[1868,1881] [2021-12-21 13:36:14,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:36:14,188 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:36:14,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14 WrapperNode [2021-12-21 13:36:14,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:36:14,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:36:14,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:36:14,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:36:14,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,405 INFO L137 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2021-12-21 13:36:14,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:36:14,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:36:14,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:36:14,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:36:14,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:36:14,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:36:14,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:36:14,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:36:14,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (1/1) ... [2021-12-21 13:36:14,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:36:14,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:36:14,692 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) [2021-12-21 13:36:14,699 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 [2021-12-21 13:36:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-21 13:36:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-21 13:36:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-21 13:36:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-21 13:36:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 13:36:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-21 13:36:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-21 13:36:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-21 13:36:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-21 13:36:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-21 13:36:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-21 13:36:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-21 13:36:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-21 13:36:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-21 13:36:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-21 13:36:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-21 13:36:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-21 13:36:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-21 13:36:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-21 13:36:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-21 13:36:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-21 13:36:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 13:36:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-21 13:36:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-21 13:36:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-21 13:36:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-21 13:36:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-21 13:36:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-21 13:36:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-21 13:36:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-21 13:36:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-21 13:36:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-21 13:36:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-21 13:36:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-21 13:36:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-21 13:36:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-21 13:36:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:36:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-21 13:36:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-21 13:36:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-21 13:36:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-21 13:36:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-21 13:36:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-21 13:36:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-21 13:36:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-21 13:36:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-21 13:36:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-21 13:36:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-21 13:36:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-21 13:36:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-21 13:36:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-21 13:36:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-21 13:36:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-21 13:36:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-21 13:36:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-21 13:36:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-21 13:36:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-21 13:36:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-21 13:36:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-21 13:36:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-21 13:36:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-21 13:36:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-21 13:36:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-21 13:36:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-21 13:36:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-21 13:36:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-21 13:36:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-21 13:36:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-21 13:36:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-21 13:36:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-21 13:36:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-21 13:36:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-21 13:36:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-21 13:36:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-21 13:36:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-21 13:36:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-21 13:36:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-21 13:36:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-21 13:36:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-21 13:36:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-21 13:36:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-21 13:36:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-21 13:36:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-21 13:36:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-21 13:36:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-21 13:36:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-21 13:36:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-21 13:36:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-21 13:36:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-21 13:36:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:36:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-21 13:36:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-21 13:36:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:36:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:36:15,279 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:36:15,282 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:36:27,498 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:36:27,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:36:27,520 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 13:36:27,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:27 BoogieIcfgContainer [2021-12-21 13:36:27,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:36:27,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:36:27,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:36:27,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:36:27,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:36:13" (1/3) ... [2021-12-21 13:36:27,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d53409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:27, skipping insertion in model container [2021-12-21 13:36:27,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:14" (2/3) ... [2021-12-21 13:36:27,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d53409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:27, skipping insertion in model container [2021-12-21 13:36:27,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:27" (3/3) ... [2021-12-21 13:36:27,531 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2021-12-21 13:36:27,535 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:36:27,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:36:27,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:36:27,592 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 [2021-12-21 13:36:27,593 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:36:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2021-12-21 13:36:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-21 13:36:27,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:36:27,656 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] [2021-12-21 13:36:27,656 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:36:27,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:36:27,660 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2021-12-21 13:36:27,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:36:27,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265530109] [2021-12-21 13:36:27,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:36:27,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms