./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.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/rekcba_aso.1.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 e618ac7f0d0fe46c0d3664cb960f19d8e01e350788161634161d0a95f103189d --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:29:51,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:29:51,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:29:51,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:29:51,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:29:51,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:29:51,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:29:51,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:29:51,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:29:51,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:29:51,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:29:51,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:29:51,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:29:51,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:29:51,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:29:51,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:29:51,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:29:51,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:29:51,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:29:51,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:29:51,166 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:29:51,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:29:51,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:29:51,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:29:51,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:29:51,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:29:51,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:29:51,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:29:51,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:29:51,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:29:51,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:29:51,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:29:51,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:29:51,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:29:51,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:29:51,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:29:51,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:29:51,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:29:51,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:29:51,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:29:51,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:29:51,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:29:51,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:29:51,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:29:51,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:29:51,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:29:51,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:29:51,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:29:51,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:29:51,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:29:51,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:29:51,225 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:29:51,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:29:51,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:29:51,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:29:51,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:29:51,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:29:51,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:29:51,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:29:51,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:29:51,227 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:29:51,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:29:51,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:29:51,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:29:51,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:29:51,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:29:51,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:29:51,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:29:51,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:29:51,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:29:51,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:29:51,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:29:51,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:29:51,229 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:29:51,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:29:51,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:29:51,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e618ac7f0d0fe46c0d3664cb960f19d8e01e350788161634161d0a95f103189d [2022-07-21 05:29:51,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:29:51,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:29:51,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:29:51,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:29:51,522 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:29:51,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c [2022-07-21 05:29:51,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6139259/ea64080c1fdc443986af6153ce57779e/FLAG9e17897e4 [2022-07-21 05:29:52,035 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:29:52,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c [2022-07-21 05:29:52,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6139259/ea64080c1fdc443986af6153ce57779e/FLAG9e17897e4 [2022-07-21 05:29:52,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6139259/ea64080c1fdc443986af6153ce57779e [2022-07-21 05:29:52,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:29:52,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:29:52,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:29:52,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:29:52,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:29:52,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:52" (1/1) ... [2022-07-21 05:29:52,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c58ea13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:52, skipping insertion in model container [2022-07-21 05:29:52,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:52" (1/1) ... [2022-07-21 05:29:52,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:29:52,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:29:52,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c[2055,2068] [2022-07-21 05:29:52,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:29:52,892 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:29:52,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-2.c[2055,2068] [2022-07-21 05:29:53,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:29:53,027 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:29:53,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53 WrapperNode [2022-07-21 05:29:53,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:29:53,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:29:53,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:29:53,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:29:53,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,217 INFO L137 Inliner]: procedures = 62, calls = 2058, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4377 [2022-07-21 05:29:53,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:29:53,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:29:53,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:29:53,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:29:53,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:29:53,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:29:53,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:29:53,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:29:53,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (1/1) ... [2022-07-21 05:29:53,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:29:53,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:29:53,498 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 05:29:53,527 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 05:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-21 05:29:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-21 05:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-21 05:29:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-21 05:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-21 05:29:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-21 05:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 05:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-21 05:29:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-21 05:29:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-21 05:29:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-21 05:29:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-21 05:29:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-21 05:29:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 05:29:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-21 05:29:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-21 05:29:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-21 05:29:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-21 05:29:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-21 05:29:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-21 05:29:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-21 05:29:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-21 05:29:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-21 05:29:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-21 05:29:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-21 05:29:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-21 05:29:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 05:29:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 05:29:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-21 05:29:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-21 05:29:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-21 05:29:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-21 05:29:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-21 05:29:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-21 05:29:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-21 05:29:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-21 05:29:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 05:29:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 05:29:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:29:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:29:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:29:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-21 05:29:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-21 05:29:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-21 05:29:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-21 05:29:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-21 05:29:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-21 05:29:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-21 05:29:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-21 05:29:54,071 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:29:54,072 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:30:00,286 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:30:00,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:30:00,306 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 05:30:00,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:00 BoogieIcfgContainer [2022-07-21 05:30:00,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:30:00,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:30:00,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:30:00,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:30:00,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:29:52" (1/3) ... [2022-07-21 05:30:00,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b93cdf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:30:00, skipping insertion in model container [2022-07-21 05:30:00,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:53" (2/3) ... [2022-07-21 05:30:00,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b93cdf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:30:00, skipping insertion in model container [2022-07-21 05:30:00,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:00" (3/3) ... [2022-07-21 05:30:00,317 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M1-2.c [2022-07-21 05:30:00,327 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:30:00,327 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:30:00,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:30:00,403 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@13947ec3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1eea5dd4 [2022-07-21 05:30:00,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:30:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 1363 states, 859 states have (on average 1.2747380675203726) internal successors, (1095), 890 states have internal predecessors, (1095), 481 states have call successors, (481), 21 states have call predecessors, (481), 21 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-07-21 05:30:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2022-07-21 05:30:00,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:30:00,499 INFO L195 NwaCegarLoop]: trace histogram [137, 137, 137, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:00,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:30:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:30:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash -136158561, now seen corresponding path program 1 times [2022-07-21 05:30:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:30:00,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573843536] [2022-07-21 05:30:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:30:00,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms