./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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.3.M4.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 c9b1c02d6c7be7efa5919110e2a46197af13f7e2bcd070264e9ea26a732e0c62 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:08:26,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:08:26,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:08:26,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:08:26,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:08:26,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:08:26,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:08:26,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:08:26,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:08:26,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:08:26,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:08:26,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:08:26,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:08:26,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:08:26,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:08:26,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:08:26,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:08:26,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:08:26,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:08:26,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:08:26,553 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:08:26,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:08:26,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:08:26,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:08:26,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:08:26,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:08:26,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:08:26,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:08:26,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:08:26,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:08:26,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:08:26,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:08:26,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:08:26,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:08:26,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:08:26,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:08:26,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:08:26,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:08:26,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:08:26,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:08:26,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:08:26,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:08:26,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:08:26,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:08:26,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:08:26,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:08:26,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:08:26,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:08:26,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:08:26,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:08:26,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:08:26,600 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:08:26,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:08:26,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:08:26,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:08:26,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:08:26,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:08:26,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:08:26,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:08:26,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:08:26,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:08:26,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:08:26,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:08:26,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:08:26,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:08:26,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:08:26,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:08:26,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:08:26,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:08:26,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:08:26,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:08:26,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:08:26,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:08:26,605 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:08:26,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:08:26,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:08:26,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9b1c02d6c7be7efa5919110e2a46197af13f7e2bcd070264e9ea26a732e0c62 [2022-07-22 18:08:26,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:08:26,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:08:26,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:08:26,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:08:26,825 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:08:26,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c [2022-07-22 18:08:26,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cdd0c19/2b57c9a12e20426594eea41b060bd86f/FLAGed4084b57 [2022-07-22 18:08:27,504 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:08:27,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c [2022-07-22 18:08:27,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cdd0c19/2b57c9a12e20426594eea41b060bd86f/FLAGed4084b57 [2022-07-22 18:08:27,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cdd0c19/2b57c9a12e20426594eea41b060bd86f [2022-07-22 18:08:27,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:08:27,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:08:27,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:08:27,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:08:27,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:08:27,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:08:27" (1/1) ... [2022-07-22 18:08:27,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3377c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:27, skipping insertion in model container [2022-07-22 18:08:27,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:08:27" (1/1) ... [2022-07-22 18:08:27,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:08:27,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:08:28,080 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.3.M4.c[2319,2332] [2022-07-22 18:08:28,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:08:28,938 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:08:28,954 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.3.M4.c[2319,2332] [2022-07-22 18:08:29,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:08:29,586 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:08:29,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29 WrapperNode [2022-07-22 18:08:29,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:08:29,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:08:29,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:08:29,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:08:29,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:29,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:31,197 INFO L137 Inliner]: procedures = 72, calls = 21284, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 45639 [2022-07-22 18:08:31,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:08:31,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:08:31,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:08:31,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:08:31,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:31,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:31,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:31,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:32,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:32,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:32,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:32,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:08:32,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:08:32,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:08:32,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:08:32,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (1/1) ... [2022-07-22 18:08:32,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:08:32,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:08:32,965 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) [2022-07-22 18:08:33,007 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 [2022-07-22 18:08:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-22 18:08:33,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-22 18:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-22 18:08:33,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-22 18:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-22 18:08:33,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-22 18:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 18:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-22 18:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-22 18:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-22 18:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-22 18:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-22 18:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-22 18:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-22 18:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-22 18:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 18:08:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-22 18:08:33,031 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-22 18:08:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-07-22 18:08:33,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-07-22 18:08:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-22 18:08:33,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-22 18:08:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-22 18:08:33,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-22 18:08:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-22 18:08:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-22 18:08:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-22 18:08:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-22 18:08:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-07-22 18:08:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-07-22 18:08:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-22 18:08:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-22 18:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-22 18:08:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-22 18:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 18:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 18:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-22 18:08:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-22 18:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-22 18:08:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-22 18:08:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-22 18:08:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-22 18:08:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-22 18:08:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-22 18:08:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 18:08:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 18:08:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:08:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:08:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:08:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-22 18:08:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-22 18:08:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-22 18:08:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-22 18:08:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-22 18:08:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-22 18:08:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-22 18:08:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-22 18:08:34,866 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:08:34,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:10:49,664 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:10:49,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:10:49,713 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 18:10:49,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:10:49 BoogieIcfgContainer [2022-07-22 18:10:49,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:10:49,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:10:49,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:10:49,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:10:49,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:08:27" (1/3) ... [2022-07-22 18:10:49,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e53c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:10:49, skipping insertion in model container [2022-07-22 18:10:49,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:29" (2/3) ... [2022-07-22 18:10:49,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e53c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:10:49, skipping insertion in model container [2022-07-22 18:10:49,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:10:49" (3/3) ... [2022-07-22 18:10:49,731 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.3.M4.c [2022-07-22 18:10:49,741 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:10:49,741 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 18:10:49,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:10:49,942 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@3f3ccf7a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@209adbd3 [2022-07-22 18:10:49,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 18:10:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 13155 states, 8487 states have (on average 1.302698244373748) internal successors, (11056), 8600 states have internal predecessors, (11056), 4641 states have call successors, (4641), 25 states have call predecessors, (4641), 25 states have return successors, (4641), 4639 states have call predecessors, (4641), 4641 states have call successors, (4641) [2022-07-22 18:10:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8469 [2022-07-22 18:10:50,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:10:50,818 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 [2022-07-22 18:10:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2039053156, now seen corresponding path program 1 times [2022-07-22 18:10:50,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:10:50,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481485845] [2022-07-22 18:10:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:10:50,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms