./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.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_aso.3.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 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:35:55,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:35:55,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:35:55,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:35:55,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:35:55,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:35:55,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:35:55,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:35:55,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:35:55,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:35:55,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:35:55,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:35:55,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:35:55,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:35:55,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:35:55,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:35:55,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:35:55,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:35:55,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:35:55,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:35:55,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:35:55,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:35:55,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:35:55,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:35:55,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:35:55,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:35:55,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:35:55,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:35:55,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:35:55,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:35:55,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:35:55,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:35:55,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:35:55,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:35:55,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:35:55,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:35:55,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:35:55,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:35:55,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:35:55,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:35:55,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:35:55,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:35:55,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:35:55,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:35:55,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:35:55,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:35:55,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:35:55,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:35:55,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:35:55,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:35:55,787 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:35:55,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:35:55,788 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:35:55,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:35:55,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:35:55,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:35:55,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:35:55,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:35:55,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:35:55,789 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:35:55,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:35:55,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:35:55,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:35:55,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:35:55,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:35:55,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:35:55,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:35:55,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:35:55,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:35:55,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:35:55,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:35:55,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:35:55,792 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:35:55,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:35:55,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:35:55,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:35:55,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f [2021-12-21 13:35:55,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:35:56,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:35:56,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:35:56,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:35:56,006 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:35:56,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2021-12-21 13:35:56,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7aa63e/d7fa7466a7b44494ac853ec9f4a1d3c0/FLAGa23c7aaa6 [2021-12-21 13:35:56,568 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:35:56,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2021-12-21 13:35:56,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7aa63e/d7fa7466a7b44494ac853ec9f4a1d3c0/FLAGa23c7aaa6 [2021-12-21 13:35:56,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7aa63e/d7fa7466a7b44494ac853ec9f4a1d3c0 [2021-12-21 13:35:56,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:35:56,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:35:56,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:35:56,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:35:56,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:35:56,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:56" (1/1) ... [2021-12-21 13:35:56,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34200825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:56, skipping insertion in model container [2021-12-21 13:35:56,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:56" (1/1) ... [2021-12-21 13:35:56,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:35:56,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:35:57,067 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_aso.3.M1.c[1806,1819] [2021-12-21 13:35:57,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:35:57,434 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:35:57,453 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_aso.3.M1.c[1806,1819] [2021-12-21 13:35:57,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:35:57,722 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:35:57,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57 WrapperNode [2021-12-21 13:35:57,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:35:57,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:35:57,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:35:57,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:35:57,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:57,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,045 INFO L137 Inliner]: procedures = 70, calls = 5190, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9710 [2021-12-21 13:35:58,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:35:58,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:35:58,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:35:58,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:35:58,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:35:58,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:35:58,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:35:58,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:35:58,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (1/1) ... [2021-12-21 13:35:58,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:35:58,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:35:58,411 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 13:35:58,446 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 13:35:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:35:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-21 13:35:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-21 13:35:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-21 13:35:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-21 13:35:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:35:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:35:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 13:35:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-21 13:35:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-21 13:35:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-21 13:35:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-21 13:35:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-21 13:35:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-21 13:35:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-21 13:35:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-21 13:35:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 13:35:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-21 13:35:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-21 13:35:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2021-12-21 13:35:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2021-12-21 13:35:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-21 13:35:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-21 13:35:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-21 13:35:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-21 13:35:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-21 13:35:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-21 13:35:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:35:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:35:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2021-12-21 13:35:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2021-12-21 13:35:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:35:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:35:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:35:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:35:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 13:35:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 13:35:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-21 13:35:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-21 13:35:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-21 13:35:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-21 13:35:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-21 13:35:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-21 13:35:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-21 13:35:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-21 13:35:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 13:35:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 13:35:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:35:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:35:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:35:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-21 13:35:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-21 13:35:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-21 13:35:58,479 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-21 13:35:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:35:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:35:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-21 13:35:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-21 13:35:59,053 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:35:59,056 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:36:09,645 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:36:09,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:36:09,667 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 13:36:09,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:09 BoogieIcfgContainer [2021-12-21 13:36:09,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:36:09,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:36:09,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:36:09,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:36:09,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:35:56" (1/3) ... [2021-12-21 13:36:09,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e77b965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:09, skipping insertion in model container [2021-12-21 13:36:09,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:57" (2/3) ... [2021-12-21 13:36:09,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e77b965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:09, skipping insertion in model container [2021-12-21 13:36:09,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:09" (3/3) ... [2021-12-21 13:36:09,681 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M1.c [2021-12-21 13:36:09,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:36:09,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:36:09,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:36:09,738 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 13:36:09,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:36:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 3583 states, 2047 states have (on average 1.1656082071323888) internal successors, (2386), 2052 states have internal predecessors, (2386), 1509 states have call successors, (1509), 25 states have call predecessors, (1509), 25 states have return successors, (1509), 1507 states have call predecessors, (1509), 1509 states have call successors, (1509) [2021-12-21 13:36:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2021-12-21 13:36:09,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:36:09,863 INFO L514 BasicCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:36:09,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:36:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:36:09,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1031046555, now seen corresponding path program 1 times [2021-12-21 13:36:09,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:36:09,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707094878] [2021-12-21 13:36:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:36:09,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms