./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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.2.M4-2.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 13ab100f899a57e5eca7e0526610c7b743f980d5e72b80cc180b4d884d35b9a9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:49:20,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:49:20,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:49:20,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:49:20,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:49:20,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:49:20,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:49:20,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:49:20,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:49:20,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:49:20,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:49:20,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:49:20,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:49:20,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:49:20,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:49:20,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:49:20,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:49:20,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:49:20,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:49:20,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:49:20,864 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:49:20,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:49:20,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:49:20,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:49:20,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:49:20,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:49:20,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:49:20,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:49:20,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:49:20,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:49:20,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:49:20,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:49:20,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:49:20,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:49:20,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:49:20,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:49:20,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:49:20,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:49:20,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:49:20,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:49:20,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:49:20,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:49:20,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:49:20,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:49:20,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:49:20,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:49:20,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:49:20,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:49:20,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:49:20,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:49:20,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:49:20,909 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:49:20,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:49:20,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:49:20,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:49:20,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:49:20,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:49:20,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:49:20,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:49:20,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:49:20,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:49:20,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:49:20,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:49:20,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:49:20,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:49:20,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:49:20,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:49:20,914 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:49:20,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:49:20,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:49:20,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab100f899a57e5eca7e0526610c7b743f980d5e72b80cc180b4d884d35b9a9 [2022-07-12 06:49:21,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:49:21,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:49:21,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:49:21,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:49:21,114 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:49:21,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c [2022-07-12 06:49:21,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fee70b3e/4bd5a3cdb74d48af95fadff6f3417ee3/FLAG555cf0841 [2022-07-12 06:49:21,741 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:49:21,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c [2022-07-12 06:49:21,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fee70b3e/4bd5a3cdb74d48af95fadff6f3417ee3/FLAG555cf0841 [2022-07-12 06:49:21,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fee70b3e/4bd5a3cdb74d48af95fadff6f3417ee3 [2022-07-12 06:49:21,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:49:21,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:49:21,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:49:21,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:49:21,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:49:21,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:49:21" (1/1) ... [2022-07-12 06:49:21,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43aa831f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:21, skipping insertion in model container [2022-07-12 06:49:21,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:49:21" (1/1) ... [2022-07-12 06:49:21,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:49:22,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:49:22,366 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.2.M4-2.c[2320,2333] [2022-07-12 06:49:23,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:49:23,348 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:49:23,421 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.2.M4-2.c[2320,2333] [2022-07-12 06:49:24,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:49:24,075 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:49:24,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24 WrapperNode [2022-07-12 06:49:24,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:49:24,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:49:24,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:49:24,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:49:24,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:24,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:25,553 INFO L137 Inliner]: procedures = 72, calls = 21416, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 45878 [2022-07-12 06:49:25,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:49:25,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:49:25,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:49:25,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:49:25,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:25,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:26,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:26,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:26,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:27,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:27,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:27,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:49:27,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:49:27,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:49:27,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:49:27,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (1/1) ... [2022-07-12 06:49:27,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:49:27,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:49:27,324 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) [2022-07-12 06:49:27,364 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 [2022-07-12 06:49:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-07-12 06:49:27,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-07-12 06:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-12 06:49:27,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-12 06:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-12 06:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-12 06:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-12 06:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-12 06:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 06:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-12 06:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-12 06:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-12 06:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-12 06:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-12 06:49:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-12 06:49:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-12 06:49:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-12 06:49:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 06:49:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-12 06:49:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-12 06:49:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-12 06:49:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-12 06:49:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-12 06:49:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-12 06:49:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-12 06:49:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-12 06:49:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-12 06:49:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-12 06:49:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-12 06:49:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-12 06:49:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-12 06:49:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-12 06:49:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 06:49:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 06:49:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-12 06:49:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-12 06:49:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-12 06:49:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-12 06:49:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-12 06:49:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-12 06:49:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-12 06:49:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-12 06:49:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 06:49:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 06:49:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:49:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:49:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:49:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-12 06:49:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-12 06:49:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-12 06:49:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-12 06:49:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-12 06:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-12 06:49:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-12 06:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-12 06:49:29,169 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:49:29,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:52:16,269 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:52:16,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:52:16,329 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 06:52:16,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:52:16 BoogieIcfgContainer [2022-07-12 06:52:16,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:52:16,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:52:16,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:52:16,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:52:16,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:49:21" (1/3) ... [2022-07-12 06:52:16,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2436cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:52:16, skipping insertion in model container [2022-07-12 06:52:16,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:49:24" (2/3) ... [2022-07-12 06:52:16,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2436cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:52:16, skipping insertion in model container [2022-07-12 06:52:16,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:52:16" (3/3) ... [2022-07-12 06:52:16,350 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-2.c [2022-07-12 06:52:16,361 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:52:16,361 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:52:16,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:52:16,704 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48c532d2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@134da1f8 [2022-07-12 06:52:16,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:52:16,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 13237 states, 8527 states have (on average 1.3011610179430046) internal successors, (11095), 8640 states have internal predecessors, (11095), 4684 states have call successors, (4684), 24 states have call predecessors, (4684), 24 states have return successors, (4684), 4682 states have call predecessors, (4684), 4684 states have call successors, (4684) [2022-07-12 06:52:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8469 [2022-07-12 06:52:17,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:52:17,528 INFO L195 NwaCegarLoop]: trace histogram [979, 979, 979, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:52:17,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1605075142, now seen corresponding path program 1 times [2022-07-12 06:52:17,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:52:17,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406704349] [2022-07-12 06:52:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:52:17,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms