./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.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 efc4c52a722d63f9628a5791b5e97bc661a62d89deb074bdb4352c608e6a3dd1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:33:34,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:33:34,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:33:34,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:33:34,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:33:34,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:33:34,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:33:34,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:33:34,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:33:34,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:33:34,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:33:34,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:33:34,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:33:34,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:33:34,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:33:34,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:33:34,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:33:34,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:33:34,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:33:34,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:33:34,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:33:34,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:33:34,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:33:34,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:33:35,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:33:35,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:33:35,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:33:35,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:33:35,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:33:35,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:33:35,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:33:35,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:33:35,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:33:35,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:33:35,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:33:35,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:33:35,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:33:35,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:33:35,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:33:35,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:33:35,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:33:35,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:33:35,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:33:35,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:33:35,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:33:35,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:33:35,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:33:35,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:33:35,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:33:35,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:33:35,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:33:35,056 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:33:35,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:33:35,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:33:35,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:33:35,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:33:35,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:33:35,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:33:35,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:33:35,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:33:35,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:33:35,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:33:35,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:33:35,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:33:35,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:33:35,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:33:35,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:33:35,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:35,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:33:35,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:33:35,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:33:35,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:33:35,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:33:35,061 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:33:35,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:33:35,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:33:35,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efc4c52a722d63f9628a5791b5e97bc661a62d89deb074bdb4352c608e6a3dd1 [2022-07-13 18:33:35,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:33:35,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:33:35,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:33:35,287 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:33:35,288 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:33:35,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2022-07-13 18:33:35,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b2dd994/9bbc5eb11eb843a08953e7a5bbc4a0d2/FLAG2eb646fcd [2022-07-13 18:33:35,895 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:33:35,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2022-07-13 18:33:35,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b2dd994/9bbc5eb11eb843a08953e7a5bbc4a0d2/FLAG2eb646fcd [2022-07-13 18:33:36,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b2dd994/9bbc5eb11eb843a08953e7a5bbc4a0d2 [2022-07-13 18:33:36,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:33:36,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:33:36,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:36,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:33:36,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:33:36,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:36" (1/1) ... [2022-07-13 18:33:36,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2805252d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:36, skipping insertion in model container [2022-07-13 18:33:36,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:36" (1/1) ... [2022-07-13 18:33:36,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:33:36,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:33:36,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c[1806,1819] [2022-07-13 18:33:36,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:36,978 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:33:36,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c[1806,1819] [2022-07-13 18:33:37,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:37,207 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:33:37,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37 WrapperNode [2022-07-13 18:33:37,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:37,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:37,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:33:37,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:33:37,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,633 INFO L137 Inliner]: procedures = 70, calls = 5187, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 9753 [2022-07-13 18:33:37,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:37,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:33:37,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:33:37,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:33:37,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:37,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:38,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:38,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:33:38,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:33:38,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:33:38,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:33:38,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (1/1) ... [2022-07-13 18:33:38,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:38,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:33:38,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 18:33:38,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 18:33:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:33:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-13 18:33:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-13 18:33:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:33:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:33:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:33:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:33:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 18:33:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:33:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:33:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:33:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:33:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-13 18:33:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-13 18:33:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:33:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:33:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:33:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-13 18:33:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-13 18:33:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-13 18:33:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-13 18:33:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:33:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:33:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:33:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:33:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:33:38,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:33:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 18:33:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:33:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:33:38,095 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:33:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-13 18:33:38,095 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-13 18:33:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-13 18:33:38,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-13 18:33:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-13 18:33:38,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-13 18:33:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 18:33:38,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 18:33:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:33:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:33:38,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:33:38,097 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-13 18:33:38,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-13 18:33:38,097 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:33:38,097 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:33:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:33:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:33:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-13 18:33:38,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-13 18:33:38,663 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:33:38,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:33:56,198 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:33:56,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:33:56,213 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 18:33:56,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:33:56 BoogieIcfgContainer [2022-07-13 18:33:56,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:33:56,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:33:56,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:33:56,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:33:56,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:33:36" (1/3) ... [2022-07-13 18:33:56,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719226f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:33:56, skipping insertion in model container [2022-07-13 18:33:56,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:37" (2/3) ... [2022-07-13 18:33:56,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719226f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:33:56, skipping insertion in model container [2022-07-13 18:33:56,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:33:56" (3/3) ... [2022-07-13 18:33:56,222 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M1.c [2022-07-13 18:33:56,231 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:33:56,232 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:33:56,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:33:56,329 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@1a24e21d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f19a7af [2022-07-13 18:33:56,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:33:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 3570 states, 2041 states have (on average 1.1656050955414012) internal successors, (2379), 2045 states have internal predecessors, (2379), 1504 states have call successors, (1504), 23 states have call predecessors, (1504), 23 states have return successors, (1504), 1502 states have call predecessors, (1504), 1504 states have call successors, (1504) [2022-07-13 18:33:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2022-07-13 18:33:56,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:33:56,402 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:33:56,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:33:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:33:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash 328926396, now seen corresponding path program 1 times [2022-07-13 18:33:56,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:33:56,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674097557] [2022-07-13 18:33:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:33:56,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms