./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.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 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:55:36,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:55:36,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:55:36,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:55:36,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:55:36,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:55:36,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:55:36,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:55:36,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:55:36,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:55:36,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:55:36,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:55:36,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:55:36,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:55:36,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:55:36,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:55:36,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:55:36,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:55:36,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:55:36,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:55:36,593 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:55:36,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:55:36,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:55:36,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:55:36,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:55:36,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:55:36,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:55:36,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:55:36,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:55:36,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:55:36,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:55:36,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:55:36,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:55:36,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:55:36,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:55:36,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:55:36,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:55:36,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:55:36,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:55:36,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:55:36,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:55:36,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:55:36,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:55:36,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:55:36,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:55:36,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:55:36,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:55:36,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:55:36,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:55:36,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:55:36,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:55:36,634 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:55:36,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:55:36,635 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:55:36,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:55:36,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:55:36,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:55:36,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:55:36,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:55:36,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:55:36,636 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:55:36,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:55:36,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:55:36,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:55:36,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:55:36,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:55:36,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:55:36,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:55:36,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:55:36,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:55:36,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:55:36,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:55:36,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:55:36,639 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:55:36,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:55:36,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:55:36,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b [2022-07-19 17:55:36,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:55:36,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:55:36,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:55:36,830 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:55:36,831 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:55:36,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2022-07-19 17:55:36,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/302603ee5/576ae75c23444181b3451bc352ef7aff/FLAG360b015b7 [2022-07-19 17:55:37,322 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:55:37,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2022-07-19 17:55:37,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/302603ee5/576ae75c23444181b3451bc352ef7aff/FLAG360b015b7 [2022-07-19 17:55:37,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/302603ee5/576ae75c23444181b3451bc352ef7aff [2022-07-19 17:55:37,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:55:37,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:55:37,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:55:37,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:55:37,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:55:37,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:55:37" (1/1) ... [2022-07-19 17:55:37,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce84f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:37, skipping insertion in model container [2022-07-19 17:55:37,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:55:37" (1/1) ... [2022-07-19 17:55:37,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:55:37,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:55:37,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2022-07-19 17:55:37,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:55:37,838 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:55:37,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2022-07-19 17:55:38,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:55:38,035 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:55:38,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38 WrapperNode [2022-07-19 17:55:38,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:55:38,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:55:38,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:55:38,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:55:38,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,190 INFO L137 Inliner]: procedures = 58, calls = 1758, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3840 [2022-07-19 17:55:38,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:55:38,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:55:38,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:55:38,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:55:38,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:55:38,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:55:38,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:55:38,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:55:38,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (1/1) ... [2022-07-19 17:55:38,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:55:38,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:55:38,375 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) [2022-07-19 17:55:38,382 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 [2022-07-19 17:55:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:55:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-19 17:55:38,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-19 17:55:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-19 17:55:38,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-19 17:55:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 17:55:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-19 17:55:38,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-19 17:55:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-19 17:55:38,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-19 17:55:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-19 17:55:38,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-19 17:55:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 17:55:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-19 17:55:38,411 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-19 17:55:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-19 17:55:38,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-19 17:55:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-19 17:55:38,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-19 17:55:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-19 17:55:38,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-19 17:55:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 17:55:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-07-19 17:55:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-07-19 17:55:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 17:55:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-19 17:55:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-19 17:55:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-19 17:55:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-19 17:55:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 17:55:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 17:55:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:55:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:55:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:55:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-19 17:55:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-19 17:55:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-19 17:55:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-19 17:55:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-19 17:55:38,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-19 17:55:38,709 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:55:38,710 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:55:44,267 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:55:44,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:55:44,277 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:55:44,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:55:44 BoogieIcfgContainer [2022-07-19 17:55:44,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:55:44,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:55:44,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:55:44,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:55:44,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:55:37" (1/3) ... [2022-07-19 17:55:44,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39adcd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:55:44, skipping insertion in model container [2022-07-19 17:55:44,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:55:38" (2/3) ... [2022-07-19 17:55:44,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39adcd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:55:44, skipping insertion in model container [2022-07-19 17:55:44,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:55:44" (3/3) ... [2022-07-19 17:55:44,284 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-2.c [2022-07-19 17:55:44,293 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:55:44,293 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:55:44,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:55:44,344 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@34d9736b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ca04c31 [2022-07-19 17:55:44,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:55:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 1203 states, 766 states have (on average 1.283289817232376) internal successors, (983), 798 states have internal predecessors, (983), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (419), 417 states have call predecessors, (419), 419 states have call successors, (419) [2022-07-19 17:55:44,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-07-19 17:55:44,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:55:44,419 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:55:44,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:55:44,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:55:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash -705707352, now seen corresponding path program 1 times [2022-07-19 17:55:44,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:55:44,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851274897] [2022-07-19 17:55:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:55:44,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms