./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.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 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:06:06,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:06:06,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:06:06,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:06:06,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:06:06,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:06:06,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:06:06,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:06:06,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:06:06,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:06:06,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:06:06,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:06:06,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:06:06,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:06:06,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:06:06,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:06:06,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:06:06,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:06:06,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:06:06,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:06:06,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:06:06,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:06:06,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:06:06,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:06:06,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:06:06,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:06:06,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:06:06,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:06:06,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:06:06,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:06:06,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:06:06,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:06:06,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:06:06,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:06:06,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:06:06,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:06:06,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:06:06,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:06:06,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:06:06,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:06:06,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:06:06,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:06:06,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:06:06,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:06:06,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:06:06,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:06:06,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:06:06,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:06:06,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:06:06,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:06:06,715 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:06:06,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:06:06,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:06:06,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:06:06,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:06:06,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:06:06,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:06:06,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:06:06,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:06:06,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:06:06,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:06:06,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:06:06,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:06:06,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:06:06,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:06:06,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:06:06,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:06,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:06:06,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:06:06,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:06:06,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:06:06,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:06:06,718 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:06:06,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:06:06,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:06:06,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:06:06,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 [2021-12-14 15:06:06,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:06:06,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:06:06,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:06:06,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:06:06,941 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:06:06,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2021-12-14 15:06:07,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1a3b2eb/f54e55e6971047b194176190208075f7/FLAG0fcc8c69f [2021-12-14 15:06:07,524 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:06:07,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2021-12-14 15:06:07,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1a3b2eb/f54e55e6971047b194176190208075f7/FLAG0fcc8c69f [2021-12-14 15:06:08,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1a3b2eb/f54e55e6971047b194176190208075f7 [2021-12-14 15:06:08,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:06:08,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:06:08,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:08,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:06:08,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:06:08,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:08,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191c9b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08, skipping insertion in model container [2021-12-14 15:06:08,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:08,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:06:08,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:06:08,287 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.4.M4.c[1806,1819] [2021-12-14 15:06:08,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:08,666 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:06:08,680 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.4.M4.c[1806,1819] [2021-12-14 15:06:08,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:06:08,949 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:06:08,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08 WrapperNode [2021-12-14 15:06:08,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:06:08,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:08,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:06:08,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:06:08,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,304 INFO L137 Inliner]: procedures = 70, calls = 5236, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9829 [2021-12-14 15:06:09,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:06:09,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:06:09,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:06:09,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:06:09,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:06:09,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:06:09,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:06:09,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:06:09,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (1/1) ... [2021-12-14 15:06:09,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:06:09,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:06:09,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 15:06:09,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 15:06:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:06:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-14 15:06:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-14 15:06:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-14 15:06:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-14 15:06:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-14 15:06:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-14 15:06:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 15:06:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-14 15:06:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-14 15:06:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-14 15:06:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-14 15:06:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-14 15:06:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-14 15:06:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-14 15:06:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 15:06:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-14 15:06:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-14 15:06:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-14 15:06:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-14 15:06:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-14 15:06:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-14 15:06:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-14 15:06:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-14 15:06:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-14 15:06:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-14 15:06:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-14 15:06:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-14 15:06:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-14 15:06:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 15:06:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-14 15:06:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-14 15:06:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 15:06:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-14 15:06:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-14 15:06:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-14 15:06:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-14 15:06:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-14 15:06:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-14 15:06:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-14 15:06:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-14 15:06:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 15:06:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 15:06:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:06:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:06:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:06:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-14 15:06:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-14 15:06:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-14 15:06:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-14 15:06:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-14 15:06:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-14 15:06:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-14 15:06:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-14 15:06:10,540 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:06:10,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:06:22,855 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:06:22,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:06:22,875 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 15:06:22,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:22 BoogieIcfgContainer [2021-12-14 15:06:22,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:06:22,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:06:22,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:06:22,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:06:22,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:06:08" (1/3) ... [2021-12-14 15:06:22,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d46baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:22, skipping insertion in model container [2021-12-14 15:06:22,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:08" (2/3) ... [2021-12-14 15:06:22,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d46baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:22, skipping insertion in model container [2021-12-14 15:06:22,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:22" (3/3) ... [2021-12-14 15:06:22,886 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M4.c [2021-12-14 15:06:22,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:06:22,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:06:22,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:06:22,955 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 15:06:22,955 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:06:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 3576 states, 2044 states have (on average 1.1653620352250489) internal successors, (2382), 2048 states have internal predecessors, (2382), 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) [2021-12-14 15:06:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2021-12-14 15:06:23,075 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:06:23,077 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, 1, 1] [2021-12-14 15:06:23,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:06:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:06:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2131596560, now seen corresponding path program 1 times [2021-12-14 15:06:23,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:06:23,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435816546] [2021-12-14 15:06:23,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:06:23,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms