./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.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 8e24bd3d387a8dc9f49a28dec971e10112e01621b85a87c6eb3a0cec4db0bef2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:55:03,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:55:03,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:55:03,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:55:03,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:55:03,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:55:03,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:55:03,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:55:03,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:55:03,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:55:03,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:55:03,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:55:03,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:55:03,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:55:03,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:55:03,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:55:03,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:55:03,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:55:03,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:55:03,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:55:03,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:55:03,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:55:03,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:55:03,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:55:03,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:55:03,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:55:03,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:55:03,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:55:03,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:55:03,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:55:03,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:55:03,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:55:03,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:55:03,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:55:03,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:55:03,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:55:03,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:55:03,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:55:03,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:55:03,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:55:03,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:55:03,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:55:03,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:55:03,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:55:03,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:55:03,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:55:03,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:55:03,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:55:03,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:55:03,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:55:03,932 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:55:03,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:55:03,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:55:03,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:55:03,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:55:03,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:55:03,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:55:03,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:55:03,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:55:03,935 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:55:03,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:55:03,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:55:03,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:55:03,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:55:03,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:55:03,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:55:03,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:55:03,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:55:03,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:55:03,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:55:03,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:55:03,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:55:03,937 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:55:03,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:55:03,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:55:03,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:55:03,938 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e24bd3d387a8dc9f49a28dec971e10112e01621b85a87c6eb3a0cec4db0bef2 [2021-12-22 11:55:04,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:55:04,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:55:04,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:55:04,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:55:04,219 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:55:04,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c [2021-12-22 11:55:04,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f91b5f1/d00b0ad9fd874c89a90b2e06984fe1d8/FLAG5fe9bb78b [2021-12-22 11:55:04,866 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:55:04,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c [2021-12-22 11:55:04,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f91b5f1/d00b0ad9fd874c89a90b2e06984fe1d8/FLAG5fe9bb78b [2021-12-22 11:55:05,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f91b5f1/d00b0ad9fd874c89a90b2e06984fe1d8 [2021-12-22 11:55:05,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:55:05,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:55:05,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:55:05,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:55:05,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:55:05,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:55:05" (1/1) ... [2021-12-22 11:55:05,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425920aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:05, skipping insertion in model container [2021-12-22 11:55:05,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:55:05" (1/1) ... [2021-12-22 11:55:05,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:55:05,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:55:05,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c[2061,2074] [2021-12-22 11:55:05,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:55:05,910 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:55:05,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c[2061,2074] [2021-12-22 11:55:06,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:55:06,207 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:55:06,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06 WrapperNode [2021-12-22 11:55:06,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:55:06,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:55:06,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:55:06,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:55:06,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,469 INFO L137 Inliner]: procedures = 72, calls = 2680, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 5657 [2021-12-22 11:55:06,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:55:06,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:55:06,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:55:06,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:55:06,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:55:06,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:55:06,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:55:06,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:55:06,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (1/1) ... [2021-12-22 11:55:06,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:55:06,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:55:06,816 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) [2021-12-22 11:55:06,842 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 [2021-12-22 11:55:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:55:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-22 11:55:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-22 11:55:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-22 11:55:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-22 11:55:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-22 11:55:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-22 11:55:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 11:55:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-22 11:55:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-22 11:55:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-22 11:55:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-22 11:55:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-22 11:55:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-22 11:55:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-22 11:55:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-22 11:55:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 11:55:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-22 11:55:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-22 11:55:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-22 11:55:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-22 11:55:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-22 11:55:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-22 11:55:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-22 11:55:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-22 11:55:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-22 11:55:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-22 11:55:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-22 11:55:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-22 11:55:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-22 11:55:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-22 11:55:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 11:55:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 11:55:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-22 11:55:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-22 11:55:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-22 11:55:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-22 11:55:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-22 11:55:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-22 11:55:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-22 11:55:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-22 11:55:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 11:55:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 11:55:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:55:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:55:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:55:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-22 11:55:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-22 11:55:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-22 11:55:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-22 11:55:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-22 11:55:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-22 11:55:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-22 11:55:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-22 11:55:07,501 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:55:07,503 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:55:17,661 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:55:17,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:55:17,683 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 11:55:17,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:55:17 BoogieIcfgContainer [2021-12-22 11:55:17,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:55:17,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:55:17,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:55:17,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:55:17,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:55:05" (1/3) ... [2021-12-22 11:55:17,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fceaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:55:17, skipping insertion in model container [2021-12-22 11:55:17,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:06" (2/3) ... [2021-12-22 11:55:17,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fceaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:55:17, skipping insertion in model container [2021-12-22 11:55:17,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:55:17" (3/3) ... [2021-12-22 11:55:17,697 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.4.M1.c [2021-12-22 11:55:17,703 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:55:17,703 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:55:17,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:55:17,763 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 [2021-12-22 11:55:17,763 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:55:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 1637 states, 1017 states have (on average 1.2566371681415929) internal successors, (1278), 1048 states have internal predecessors, (1278), 595 states have call successors, (595), 23 states have call predecessors, (595), 23 states have return successors, (595), 593 states have call predecessors, (595), 595 states have call successors, (595) [2021-12-22 11:55:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2021-12-22 11:55:17,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:55:17,964 INFO L514 BasicCegarLoop]: trace histogram [241, 241, 241, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:55:17,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:55:17,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:55:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1806207694, now seen corresponding path program 1 times [2021-12-22 11:55:17,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:55:17,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600721932] [2021-12-22 11:55:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:55:17,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms