./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 35987657 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-?-3598765 [2022-07-21 05:34:00,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:34:00,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:34:00,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:34:00,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:34:00,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:34:00,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:34:00,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:34:00,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:34:00,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:34:00,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:34:00,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:34:00,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:34:00,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:34:00,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:34:00,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:34:00,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:34:00,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:34:00,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:34:00,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:34:00,603 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:34:00,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:34:00,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:34:00,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:34:00,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:34:00,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:34:00,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:34:00,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:34:00,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:34:00,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:34:00,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:34:00,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:34:00,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:34:00,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:34:00,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:34:00,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:34:00,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:34:00,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:34:00,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:34:00,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:34:00,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:34:00,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:34:00,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:34:00,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:34:00,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:34:00,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:34:00,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:34:00,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:34:00,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:34:00,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:34:00,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:34:00,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:34:00,642 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:34:00,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:34:00,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:34:00,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:34:00,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:34:00,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:34:00,644 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:34:00,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:34:00,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:34:00,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 [2022-07-21 05:34:00,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:34:00,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:34:00,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:34:00,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:34:00,960 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:34:00,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2022-07-21 05:34:01,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ecd324e/51632f03767a474fa375ae300aa40240/FLAG91c5c2b38 [2022-07-21 05:34:01,567 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:34:01,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2022-07-21 05:34:01,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ecd324e/51632f03767a474fa375ae300aa40240/FLAG91c5c2b38 [2022-07-21 05:34:01,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ecd324e/51632f03767a474fa375ae300aa40240 [2022-07-21 05:34:01,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:34:01,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:34:01,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:34:01,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:34:01,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:34:01,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:34:01" (1/1) ... [2022-07-21 05:34:01,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31737378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:01, skipping insertion in model container [2022-07-21 05:34:01,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:34:01" (1/1) ... [2022-07-21 05:34:01,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:34:01,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:34:02,038 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] [2022-07-21 05:34:02,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:34:02,486 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:34:02,501 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] [2022-07-21 05:34:02,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:34:02,704 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:34:02,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02 WrapperNode [2022-07-21 05:34:02,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:34:02,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:34:02,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:34:02,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:34:02,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:02,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,084 INFO L137 Inliner]: procedures = 70, calls = 5236, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9829 [2022-07-21 05:34:03,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:34:03,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:34:03,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:34:03,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:34:03,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:34:03,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:34:03,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:34:03,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:34:03,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (1/1) ... [2022-07-21 05:34:03,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:34:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:34:03,504 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) [2022-07-21 05:34:03,523 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 [2022-07-21 05:34:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:34:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-21 05:34:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-21 05:34:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-21 05:34:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-21 05:34:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-21 05:34:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-21 05:34:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 05:34:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-21 05:34:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-21 05:34:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-21 05:34:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-21 05:34:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-21 05:34:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-21 05:34:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-21 05:34:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-21 05:34:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 05:34:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-21 05:34:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-21 05:34:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-21 05:34:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-21 05:34:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-21 05:34:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-21 05:34:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-21 05:34:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-21 05:34:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-21 05:34:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-21 05:34:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-21 05:34:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-21 05:34:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-21 05:34:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-21 05:34:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 05:34:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-21 05:34:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-21 05:34:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 05:34:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-21 05:34:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-21 05:34:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-21 05:34:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-21 05:34:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-21 05:34:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-21 05:34:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-21 05:34:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-21 05:34:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 05:34:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 05:34:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:34:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:34:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:34:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-21 05:34:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-21 05:34:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-21 05:34:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-21 05:34:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-21 05:34:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-21 05:34:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-21 05:34:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-21 05:34:04,247 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:34:04,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:34:13,794 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:34:13,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:34:13,811 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 05:34:13,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:34:13 BoogieIcfgContainer [2022-07-21 05:34:13,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:34:13,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:34:13,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:34:13,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:34:13,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:34:01" (1/3) ... [2022-07-21 05:34:13,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7299f14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:34:13, skipping insertion in model container [2022-07-21 05:34:13,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:34:02" (2/3) ... [2022-07-21 05:34:13,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7299f14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:34:13, skipping insertion in model container [2022-07-21 05:34:13,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:34:13" (3/3) ... [2022-07-21 05:34:13,820 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M4.c [2022-07-21 05:34:13,830 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:34:13,830 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:34:13,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:34:13,923 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@58b436b9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5fb7a286 [2022-07-21 05:34:13,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:34:13,936 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) [2022-07-21 05:34:13,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2022-07-21 05:34:13,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:34:13,994 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:34:13,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:34:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:34:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2131596560, now seen corresponding path program 1 times [2022-07-21 05:34:14,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:34:14,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150385652] [2022-07-21 05:34:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:34:14,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms