./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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.2.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 dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:36:26,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:36:26,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:36:26,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:36:26,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:36:26,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:36:26,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:36:26,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:36:26,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:36:26,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:36:26,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:36:26,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:36:26,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:36:26,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:36:26,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:36:26,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:36:26,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:36:26,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:36:26,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:36:26,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:36:26,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:36:26,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:36:26,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:36:26,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:36:26,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:36:26,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:36:26,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:36:26,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:36:26,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:36:26,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:36:26,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:36:26,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:36:26,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:36:26,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:36:26,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:36:26,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:36:26,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:36:26,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:36:26,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:36:26,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:36:26,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:36:26,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:36:26,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:36:26,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:36:26,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:36:26,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:36:26,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:36:26,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:36:26,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:36:26,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:36:26,746 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:36:26,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:36:26,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:36:26,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:36:26,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:36:26,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:36:26,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:36:26,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:36:26,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:36:26,748 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:36:26,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:36:26,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:36:26,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:36:26,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:36:26,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:36:26,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:36:26,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:36:26,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:36:26,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:36:26,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:36:26,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:36:26,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:36:26,752 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:36:26,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:36:26,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:36:26,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 [2022-02-20 18:36:27,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:36:27,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:36:27,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:36:27,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:36:27,038 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:36:27,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2022-02-20 18:36:27,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808284fd8/537b8a4dfb35483b9c099535980cd7ba/FLAG451314122 [2022-02-20 18:36:27,719 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:36:27,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2022-02-20 18:36:27,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808284fd8/537b8a4dfb35483b9c099535980cd7ba/FLAG451314122 [2022-02-20 18:36:28,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808284fd8/537b8a4dfb35483b9c099535980cd7ba [2022-02-20 18:36:28,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:36:28,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:36:28,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:36:28,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:36:28,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:36:28,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:36:28" (1/1) ... [2022-02-20 18:36:28,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5a6009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:28, skipping insertion in model container [2022-02-20 18:36:28,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:36:28" (1/1) ... [2022-02-20 18:36:28,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:36:28,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:36:28,392 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.2.M1-1.c[1807,1820] [2022-02-20 18:36:28,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:36:28,981 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:36:28,993 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.2.M1-1.c[1807,1820] [2022-02-20 18:36:29,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:36:29,370 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:36:29,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29 WrapperNode [2022-02-20 18:36:29,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:36:29,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:36:29,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:36:29,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:36:29,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:29,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,008 INFO L137 Inliner]: procedures = 70, calls = 5188, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9727 [2022-02-20 18:36:30,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:36:30,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:36:30,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:36:30,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:36:30,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:36:30,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:36:30,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:36:30,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:36:30,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (1/1) ... [2022-02-20 18:36:30,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:36:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:36:30,517 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) [2022-02-20 18:36:30,542 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 [2022-02-20 18:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-02-20 18:36:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-02-20 18:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-02-20 18:36:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-02-20 18:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-02-20 18:36:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-02-20 18:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-02-20 18:36:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-02-20 18:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 18:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-02-20 18:36:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-02-20 18:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-02-20 18:36:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-02-20 18:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-02-20 18:36:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-02-20 18:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-02-20 18:36:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-02-20 18:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 18:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-02-20 18:36:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-02-20 18:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-02-20 18:36:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-02-20 18:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-02-20 18:36:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-02-20 18:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-02-20 18:36:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-02-20 18:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-02-20 18:36:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-02-20 18:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-02-20 18:36:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-02-20 18:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-02-20 18:36:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-02-20 18:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 18:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 18:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-02-20 18:36:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-02-20 18:36:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-02-20 18:36:30,565 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-02-20 18:36:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-02-20 18:36:30,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-02-20 18:36:30,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-02-20 18:36:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-02-20 18:36:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-20 18:36:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-20 18:36:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:36:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:36:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:36:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-02-20 18:36:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-02-20 18:36:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-02-20 18:36:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-02-20 18:36:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-02-20 18:36:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-02-20 18:36:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-02-20 18:36:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-02-20 18:36:31,353 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:36:31,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:36:47,257 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:36:47,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:36:47,282 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 18:36:47,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:36:47 BoogieIcfgContainer [2022-02-20 18:36:47,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:36:47,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:36:47,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:36:47,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:36:47,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:36:28" (1/3) ... [2022-02-20 18:36:47,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0cb9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:36:47, skipping insertion in model container [2022-02-20 18:36:47,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:29" (2/3) ... [2022-02-20 18:36:47,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0cb9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:36:47, skipping insertion in model container [2022-02-20 18:36:47,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:36:47" (3/3) ... [2022-02-20 18:36:47,294 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2022-02-20 18:36:47,298 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:36:47,299 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:36:47,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:36:47,356 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 [2022-02-20 18:36:47,356 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:36:47,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 3573 states, 2041 states have (on average 1.1656050955414012) internal successors, (2379), 2046 states have internal predecessors, (2379), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2022-02-20 18:36:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2022-02-20 18:36:47,564 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:36:47,566 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] [2022-02-20 18:36:47,567 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:36:47,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:36:47,572 INFO L85 PathProgramCache]: Analyzing trace with hash -274580296, now seen corresponding path program 1 times [2022-02-20 18:36:47,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:36:47,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051310545] [2022-02-20 18:36:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:36:47,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms