./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.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/rekcba_aso.1.M1-1.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 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:33:23,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:33:23,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:33:23,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:33:23,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:33:23,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:33:23,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:33:23,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:33:23,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:33:23,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:33:23,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:33:23,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:33:23,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:33:23,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:33:23,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:33:23,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:33:23,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:33:23,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:33:23,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:33:23,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:33:23,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:33:23,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:33:23,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:33:23,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:33:23,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:33:23,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:33:23,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:33:23,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:33:23,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:33:23,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:33:23,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:33:23,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:33:23,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:33:23,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:33:23,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:33:23,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:33:23,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:33:23,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:33:23,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:33:23,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:33:23,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:33:23,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:33:23,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:33:23,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:33:23,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:33:23,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:33:23,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:33:23,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:33:23,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:33:23,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:33:23,900 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:33:23,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:33:23,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:33:23,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:33:23,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:33:23,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:33:23,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:33:23,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:33:23,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:33:23,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:33:23,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:33:23,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:33:23,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:33:23,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:33:23,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:33:23,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:33:23,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:33:23,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:33:23,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:33:23,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:33:23,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:33:23,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:33:23,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:33:23,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:33:23,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:33:23,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:33:23,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 [2021-12-21 13:33:24,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:33:24,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:33:24,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:33:24,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:33:24,130 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:33:24,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2021-12-21 13:33:24,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be851ef0a/57a9a48a001f4979bc99d151b029c3d7/FLAGf6b23808d [2021-12-21 13:33:24,701 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:33:24,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2021-12-21 13:33:24,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be851ef0a/57a9a48a001f4979bc99d151b029c3d7/FLAGf6b23808d [2021-12-21 13:33:25,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be851ef0a/57a9a48a001f4979bc99d151b029c3d7 [2021-12-21 13:33:25,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:33:25,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:33:25,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:33:25,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:33:25,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:33:25,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:33:25" (1/1) ... [2021-12-21 13:33:25,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7957c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:25, skipping insertion in model container [2021-12-21 13:33:25,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:33:25" (1/1) ... [2021-12-21 13:33:25,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:33:25,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:33:25,442 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.1.M1-1.c[1974,1987] [2021-12-21 13:33:25,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:33:25,782 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:33:25,795 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.1.M1-1.c[1974,1987] [2021-12-21 13:33:26,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:33:26,053 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:33:26,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26 WrapperNode [2021-12-21 13:33:26,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:33:26,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:33:26,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:33:26,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:33:26,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,312 INFO L137 Inliner]: procedures = 60, calls = 2058, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4373 [2021-12-21 13:33:26,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:33:26,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:33:26,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:33:26,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:33:26,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:33:26,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:33:26,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:33:26,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:33:26,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (1/1) ... [2021-12-21 13:33:26,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:33:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:33:26,589 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 13:33:26,615 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 13:33:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:33:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-21 13:33:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-21 13:33:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-21 13:33:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-21 13:33:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:33:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:33:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 13:33:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-21 13:33:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-21 13:33:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-21 13:33:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-21 13:33:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-21 13:33:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-21 13:33:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 13:33:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-21 13:33:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-21 13:33:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-21 13:33:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-21 13:33:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-21 13:33:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-21 13:33:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:33:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:33:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:33:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:33:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:33:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:33:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 13:33:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 13:33:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-21 13:33:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-21 13:33:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-21 13:33:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-21 13:33:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-21 13:33:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-21 13:33:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-21 13:33:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-21 13:33:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 13:33:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 13:33:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:33:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:33:26,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:33:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-21 13:33:26,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-21 13:33:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-21 13:33:26,639 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-21 13:33:26,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:33:26,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:33:26,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-21 13:33:26,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-21 13:33:27,111 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:33:27,112 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:33:33,841 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:33:33,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:33:33,865 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 13:33:33,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:33:33 BoogieIcfgContainer [2021-12-21 13:33:33,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:33:33,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:33:33,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:33:33,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:33:33,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:33:25" (1/3) ... [2021-12-21 13:33:33,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7f1bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:33:33, skipping insertion in model container [2021-12-21 13:33:33,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:33:26" (2/3) ... [2021-12-21 13:33:33,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7f1bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:33:33, skipping insertion in model container [2021-12-21 13:33:33,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:33:33" (3/3) ... [2021-12-21 13:33:33,881 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M1-1.c [2021-12-21 13:33:33,886 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:33:33,887 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:33:33,947 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:33:33,952 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 13:33:33,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:33:33,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 1361 states, 857 states have (on average 1.2753792298716453) internal successors, (1093), 889 states have internal predecessors, (1093), 481 states have call successors, (481), 21 states have call predecessors, (481), 21 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2021-12-21 13:33:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2021-12-21 13:33:34,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:33:34,072 INFO L514 BasicCegarLoop]: trace histogram [137, 137, 137, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:33:34,072 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:33:34,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:33:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1949760813, now seen corresponding path program 1 times [2021-12-21 13:33:34,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:33:34,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472613999] [2021-12-21 13:33:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:33:34,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms