./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.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 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:53:41,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:53:41,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:53:41,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:53:41,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:53:41,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:53:41,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:53:41,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:53:41,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:53:41,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:53:41,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:53:41,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:53:41,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:53:41,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:53:41,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:53:41,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:53:41,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:53:41,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:53:41,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:53:41,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:53:41,869 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:53:41,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:53:41,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:53:41,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:53:41,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:53:41,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:53:41,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:53:41,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:53:41,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:53:41,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:53:41,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:53:41,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:53:41,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:53:41,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:53:41,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:53:41,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:53:41,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:53:41,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:53:41,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:53:41,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:53:41,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:53:41,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:53:41,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:53:41,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:53:41,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:53:41,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:53:41,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:53:41,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:53:41,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:53:41,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:53:41,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:53:41,925 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:53:41,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:53:41,927 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:53:41,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:53:41,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:53:41,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:53:41,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:53:41,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:53:41,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:53:41,928 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:53:41,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:53:41,928 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:53:41,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:53:41,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:53:41,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:53:41,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:53:41,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:53:41,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:53:41,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:53:41,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:53:41,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:53:41,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:53:41,932 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:53:41,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:53:41,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:53:41,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 [2022-07-19 17:53:42,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:53:42,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:53:42,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:53:42,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:53:42,219 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:53:42,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-07-19 17:53:42,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d56b094/121aeed1edea47709c2aae34737280e7/FLAG49677d1e8 [2022-07-19 17:53:43,065 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:53:43,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-07-19 17:53:43,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d56b094/121aeed1edea47709c2aae34737280e7/FLAG49677d1e8 [2022-07-19 17:53:43,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d56b094/121aeed1edea47709c2aae34737280e7 [2022-07-19 17:53:43,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:53:43,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:53:43,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:53:43,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:53:43,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:53:43,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:53:43" (1/1) ... [2022-07-19 17:53:43,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68520c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:43, skipping insertion in model container [2022-07-19 17:53:43,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:53:43" (1/1) ... [2022-07-19 17:53:43,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:53:43,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:53:44,046 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.M4-2.c[2232,2245] [2022-07-19 17:53:45,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:53:45,062 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:53:45,084 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.M4-2.c[2232,2245] [2022-07-19 17:53:45,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:53:45,993 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:53:45,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45 WrapperNode [2022-07-19 17:53:45,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:53:45,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:53:45,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:53:45,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:53:46,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:46,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:47,825 INFO L137 Inliner]: procedures = 60, calls = 19341, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 41957 [2022-07-19 17:53:47,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:53:47,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:53:47,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:53:47,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:53:47,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:47,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:48,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:48,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:49,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:49,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:49,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:49,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:53:49,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:53:49,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:53:49,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:53:49,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (1/1) ... [2022-07-19 17:53:49,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:53:49,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:53:49,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:53:49,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:53:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:53:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-19 17:53:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-19 17:53:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-19 17:53:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-19 17:53:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-19 17:53:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-19 17:53:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 17:53:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-19 17:53:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-19 17:53:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-19 17:53:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-19 17:53:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-19 17:53:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-19 17:53:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 17:53:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-19 17:53:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-19 17:53:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-19 17:53:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-19 17:53:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-19 17:53:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-19 17:53:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-19 17:53:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-19 17:53:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-19 17:53:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-19 17:53:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-19 17:53:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-19 17:53:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 17:53:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 17:53:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-19 17:53:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-19 17:53:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-19 17:53:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-19 17:53:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-19 17:53:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-19 17:53:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-19 17:53:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-19 17:53:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 17:53:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 17:53:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:53:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:53:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:53:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-19 17:53:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-19 17:53:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-19 17:53:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-19 17:53:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-19 17:53:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-19 17:53:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-19 17:53:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-19 17:53:51,558 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:53:51,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:54:39,185 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:54:39,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:54:39,236 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:54:39,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:54:39 BoogieIcfgContainer [2022-07-19 17:54:39,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:54:39,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:54:39,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:54:39,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:54:39,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:53:43" (1/3) ... [2022-07-19 17:54:39,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f082535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:54:39, skipping insertion in model container [2022-07-19 17:54:39,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:45" (2/3) ... [2022-07-19 17:54:39,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f082535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:54:39, skipping insertion in model container [2022-07-19 17:54:39,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:54:39" (3/3) ... [2022-07-19 17:54:39,262 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M4-2.c [2022-07-19 17:54:39,278 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:54:39,278 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:54:39,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:54:39,553 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@28f05a73, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2530b15b [2022-07-19 17:54:39,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:54:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 12638 states, 8207 states have (on average 1.3098574387717803) internal successors, (10750), 8320 states have internal predecessors, (10750), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4406 states have call predecessors, (4408), 4408 states have call successors, (4408) [2022-07-19 17:54:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5901 [2022-07-19 17:54:40,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:54:40,066 INFO L195 NwaCegarLoop]: trace histogram [551, 551, 551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:54:40,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:54:40,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1922117985, now seen corresponding path program 1 times [2022-07-19 17:54:40,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:54:40,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408763063] [2022-07-19 17:54:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:54:40,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms