./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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.2.M1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:33:05,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:33:05,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:33:05,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:33:05,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:33:05,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:33:05,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:33:05,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:33:05,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:33:05,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:33:05,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:33:05,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:33:05,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:33:05,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:33:05,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:33:05,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:33:05,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:33:05,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:33:05,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:33:05,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:33:05,615 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:33:05,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:33:05,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:33:05,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:33:05,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:33:05,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:33:05,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:33:05,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:33:05,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:33:05,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:33:05,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:33:05,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:33:05,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:33:05,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:33:05,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:33:05,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:33:05,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:33:05,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:33:05,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:33:05,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:33:05,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:33:05,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:33:05,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:33:05,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:33:05,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:33:05,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:33:05,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:33:05,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:33:05,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:33:05,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:33:05,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:33:05,669 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:33:05,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:33:05,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:33:05,671 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:33:05,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:33:05,671 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:33:05,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:33:05,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:33:05,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:33:05,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:33:05,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:05,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:33:05,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:33:05,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:33:05,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:33:05,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:33:05,673 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:33:05,673 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:33:05,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:33:05,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 [2022-07-13 18:33:05,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:33:05,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:33:05,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:33:05,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:33:05,895 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:33:05,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2022-07-13 18:33:05,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed6e63d0/a465230ed10f4d53a010ded5fb80016d/FLAGb1626c33c [2022-07-13 18:33:06,510 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:33:06,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2022-07-13 18:33:06,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed6e63d0/a465230ed10f4d53a010ded5fb80016d/FLAGb1626c33c [2022-07-13 18:33:06,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed6e63d0/a465230ed10f4d53a010ded5fb80016d [2022-07-13 18:33:06,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:33:06,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:33:06,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:06,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:33:06,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:33:06,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:06" (1/1) ... [2022-07-13 18:33:06,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f9b741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:06, skipping insertion in model container [2022-07-13 18:33:06,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:06" (1/1) ... [2022-07-13 18:33:06,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:33:07,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:33:07,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c[1974,1987] [2022-07-13 18:33:07,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:07,673 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:33:07,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c[1974,1987] [2022-07-13 18:33:07,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:07,826 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:33:07,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07 WrapperNode [2022-07-13 18:33:07,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:07,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:07,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:33:07,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:33:07,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:07,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,016 INFO L137 Inliner]: procedures = 61, calls = 3158, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 6014 [2022-07-13 18:33:08,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:08,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:33:08,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:33:08,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:33:08,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:33:08,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:33:08,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:33:08,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:33:08,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (1/1) ... [2022-07-13 18:33:08,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:08,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:33:08,271 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) [2022-07-13 18:33:08,279 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 [2022-07-13 18:33:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:33:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-13 18:33:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-13 18:33:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:33:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:33:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:33:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:33:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 18:33:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:33:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:33:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:33:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:33:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-13 18:33:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-13 18:33:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:33:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:33:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:33:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-13 18:33:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-13 18:33:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-13 18:33:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-13 18:33:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:33:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:33:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:33:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 18:33:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:33:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:33:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-13 18:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-13 18:33:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-13 18:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-13 18:33:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-13 18:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-13 18:33:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 18:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 18:33:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:33:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:33:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-13 18:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-13 18:33:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:33:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:33:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-13 18:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-13 18:33:08,718 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:33:08,720 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:33:15,534 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:33:15,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:33:15,556 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 18:33:15,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:33:15 BoogieIcfgContainer [2022-07-13 18:33:15,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:33:15,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:33:15,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:33:15,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:33:15,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:33:06" (1/3) ... [2022-07-13 18:33:15,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7bb25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:33:15, skipping insertion in model container [2022-07-13 18:33:15,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:07" (2/3) ... [2022-07-13 18:33:15,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7bb25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:33:15, skipping insertion in model container [2022-07-13 18:33:15,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:33:15" (3/3) ... [2022-07-13 18:33:15,569 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-2.c [2022-07-13 18:33:15,578 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:33:15,579 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:33:15,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:33:15,695 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@7e6db201, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@125fd950 [2022-07-13 18:33:15,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:33:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 2371 states, 1382 states have (on average 1.2011577424023154) internal successors, (1660), 1386 states have internal predecessors, (1660), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 964 states have call predecessors, (966), 966 states have call successors, (966) [2022-07-13 18:33:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2022-07-13 18:33:15,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:33:15,769 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:33:15,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:33:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:33:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash -982308712, now seen corresponding path program 1 times [2022-07-13 18:33:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:33:15,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386030468] [2022-07-13 18:33:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:33:15,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms