./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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.2.M1-1.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 fa59ed4452a7d9a50756d383eacb845b850d310f41936ec2f7ad520def2e3c6c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:34:22,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:34:22,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:34:22,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:34:22,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:34:22,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:34:22,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:34:22,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:34:22,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:34:22,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:34:22,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:34:22,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:34:22,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:34:22,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:34:22,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:34:22,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:34:22,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:34:22,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:34:22,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:34:22,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:34:22,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:34:22,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:34:22,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:34:22,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:34:22,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:34:22,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:34:22,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:34:22,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:34:22,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:34:22,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:34:22,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:34:22,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:34:22,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:34:22,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:34:22,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:34:22,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:34:22,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:34:22,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:34:22,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:34:22,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:34:22,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:34:22,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:34:22,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:34:22,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:34:22,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:34:22,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:34:22,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:34:22,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:34:22,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:34:22,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:34:22,118 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:34:22,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:34:22,119 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:34:22,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:34:22,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:34:22,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:34:22,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:34:22,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:34:22,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:34:22,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:34:22,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:34:22,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:34:22,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:34:22,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:34:22,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:34:22,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:34:22,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:34:22,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:34:22,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa59ed4452a7d9a50756d383eacb845b850d310f41936ec2f7ad520def2e3c6c [2022-02-20 18:34:22,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:34:22,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:34:22,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:34:22,337 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:34:22,337 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:34:22,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-1.c [2022-02-20 18:34:22,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a21bd44ba/e972072433ed4218b81ce02f97d4dc77/FLAG0067c42a7 [2022-02-20 18:34:22,861 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:34:22,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-1.c [2022-02-20 18:34:22,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a21bd44ba/e972072433ed4218b81ce02f97d4dc77/FLAG0067c42a7 [2022-02-20 18:34:23,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a21bd44ba/e972072433ed4218b81ce02f97d4dc77 [2022-02-20 18:34:23,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:34:23,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:34:23,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:34:23,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:34:23,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:34:23,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:23,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d454e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23, skipping insertion in model container [2022-02-20 18:34:23,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:23,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:34:23,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:34:23,382 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.2.M1-1.c[2062,2075] [2022-02-20 18:34:23,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:34:23,730 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:34:23,739 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.2.M1-1.c[2062,2075] [2022-02-20 18:34:23,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:34:23,948 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:34:23,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23 WrapperNode [2022-02-20 18:34:23,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:34:23,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:34:23,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:34:23,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:34:23,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,197 INFO L137 Inliner]: procedures = 72, calls = 2681, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 5631 [2022-02-20 18:34:24,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:34:24,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:34:24,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:34:24,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:34:24,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:34:24,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:34:24,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:34:24,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:34:24,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (1/1) ... [2022-02-20 18:34:24,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:34:24,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:34:24,442 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) [2022-02-20 18:34:24,454 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 [2022-02-20 18:34:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:34:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-02-20 18:34:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-02-20 18:34:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-02-20 18:34:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-02-20 18:34:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-02-20 18:34:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-02-20 18:34:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-02-20 18:34:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-02-20 18:34:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 18:34:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-02-20 18:34:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-02-20 18:34:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-02-20 18:34:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-02-20 18:34:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-02-20 18:34:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-02-20 18:34:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-02-20 18:34:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-02-20 18:34:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 18:34:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-02-20 18:34:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-02-20 18:34:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-02-20 18:34:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-02-20 18:34:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-02-20 18:34:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-02-20 18:34:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-02-20 18:34:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-02-20 18:34:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-02-20 18:34:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-02-20 18:34:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-02-20 18:34:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-02-20 18:34:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-02-20 18:34:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-02-20 18:34:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 18:34:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 18:34:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-02-20 18:34:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-02-20 18:34:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-02-20 18:34:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-02-20 18:34:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-02-20 18:34:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-02-20 18:34:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-02-20 18:34:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-02-20 18:34:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-20 18:34:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-20 18:34:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:34:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:34:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:34:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-02-20 18:34:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-02-20 18:34:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-02-20 18:34:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-02-20 18:34:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-02-20 18:34:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-02-20 18:34:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-02-20 18:34:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-02-20 18:34:24,884 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:34:24,887 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:34:35,482 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:34:35,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:34:35,504 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 18:34:35,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:34:35 BoogieIcfgContainer [2022-02-20 18:34:35,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:34:35,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:34:35,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:34:35,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:34:35,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:34:23" (1/3) ... [2022-02-20 18:34:35,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee1e51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:34:35, skipping insertion in model container [2022-02-20 18:34:35,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:34:23" (2/3) ... [2022-02-20 18:34:35,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee1e51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:34:35, skipping insertion in model container [2022-02-20 18:34:35,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:34:35" (3/3) ... [2022-02-20 18:34:35,514 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M1-1.c [2022-02-20 18:34:35,517 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:34:35,518 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:34:35,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:34:35,569 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:34:35,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:34:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 1640 states, 1017 states have (on average 1.2566371681415929) internal successors, (1278), 1049 states have internal predecessors, (1278), 597 states have call successors, (597), 24 states have call predecessors, (597), 24 states have return successors, (597), 595 states have call predecessors, (597), 597 states have call successors, (597) [2022-02-20 18:34:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2022-02-20 18:34:35,720 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:34:35,722 INFO L514 BasicCegarLoop]: trace histogram [241, 241, 241, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:34:35,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:34:35,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:34:35,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1449643402, now seen corresponding path program 1 times [2022-02-20 18:34:35,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:34:35,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243464908] [2022-02-20 18:34:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:34:35,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms