./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe3c2276a7cb4a5d1230bb06af9c590640e6d7fcc357e815e8e5e988ba323a74 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:53:46,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:53:46,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:53:46,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:53:46,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:53:46,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:53:46,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:53:46,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:53:46,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:53:46,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:53:46,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:53:46,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:53:46,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:53:46,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:53:46,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:53:46,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:53:46,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:53:46,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:53:46,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:53:46,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:53:46,864 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:53:46,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:53:46,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:53:46,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:53:46,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:53:46,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:53:46,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:53:46,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:53:46,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:53:46,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:53:46,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:53:46,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:53:46,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:53:46,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:53:46,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:53:46,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:53:46,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:53:46,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:53:46,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:53:46,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:53:46,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:53:46,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:53:46,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:53:46,909 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:53:46,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:53:46,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:53:46,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:53:46,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:53:46,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:53:46,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:53:46,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:53:46,911 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:53:46,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:53:46,912 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:53:46,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:53:46,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:53:46,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:53:46,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:53:46,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:53:46,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:53:46,913 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:53:46,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:53:46,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:53:46,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:53:46,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:53:46,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:53:46,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:53:46,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:53:46,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:53:46,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:53:46,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:53:46,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:53:46,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:53:46,916 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:53:46,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:53:46,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:53:46,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe3c2276a7cb4a5d1230bb06af9c590640e6d7fcc357e815e8e5e988ba323a74 [2022-07-19 17:53:47,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:53:47,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:53:47,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:53:47,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:53:47,154 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:53:47,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-2.c [2022-07-19 17:53:47,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d84a90d1/5055501368cf4183957242a8b787ed36/FLAG9fb619011 [2022-07-19 17:53:47,741 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:53:47,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-2.c [2022-07-19 17:53:47,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d84a90d1/5055501368cf4183957242a8b787ed36/FLAG9fb619011 [2022-07-19 17:53:47,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d84a90d1/5055501368cf4183957242a8b787ed36 [2022-07-19 17:53:48,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:53:48,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:53:48,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:53:48,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:53:48,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:53:48,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:53:47" (1/1) ... [2022-07-19 17:53:48,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe630e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48, skipping insertion in model container [2022-07-19 17:53:48,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:53:47" (1/1) ... [2022-07-19 17:53:48,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:53:48,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:53:48,254 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.M1-2.c[2320,2333] [2022-07-19 17:53:48,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:53:48,550 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:53:48,584 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.M1-2.c[2320,2333] [2022-07-19 17:53:48,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:53:48,721 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:53:48,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48 WrapperNode [2022-07-19 17:53:48,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:53:48,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:53:48,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:53:48,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:53:48,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,878 INFO L137 Inliner]: procedures = 63, calls = 2147, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 4519 [2022-07-19 17:53:48,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:53:48,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:53:48,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:53:48,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:53:48,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:53:48,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:53:48,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:53:48,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:53:48,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (1/1) ... [2022-07-19 17:53:48,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:53:48,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:53:49,016 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 17:53:49,030 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 17:53:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:53:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-19 17:53:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-19 17:53:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-19 17:53:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-19 17:53:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-19 17:53:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-19 17:53:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-19 17:53:49,457 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:53:49,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:53:55,796 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:53:55,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:53:55,817 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:53:55,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:53:55 BoogieIcfgContainer [2022-07-19 17:53:55,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:53:55,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:53:55,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:53:55,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:53:55,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:53:47" (1/3) ... [2022-07-19 17:53:55,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdeae14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:53:55, skipping insertion in model container [2022-07-19 17:53:55,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:53:48" (2/3) ... [2022-07-19 17:53:55,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdeae14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:53:55, skipping insertion in model container [2022-07-19 17:53:55,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:53:55" (3/3) ... [2022-07-19 17:53:55,830 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M1-2.c [2022-07-19 17:53:55,840 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:53:55,840 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:53:55,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:53:55,918 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@10a90218, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c7ac0dd [2022-07-19 17:53:55,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:53:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 1429 states, 897 states have (on average 1.2709030100334449) internal successors, (1140), 928 states have internal predecessors, (1140), 509 states have call successors, (509), 21 states have call predecessors, (509), 21 states have return successors, (509), 507 states have call predecessors, (509), 509 states have call successors, (509) [2022-07-19 17:53:55,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2022-07-19 17:53:55,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:53:55,980 INFO L195 NwaCegarLoop]: trace histogram [137, 137, 137, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:53:55,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:53:55,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:53:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash -488918017, now seen corresponding path program 1 times [2022-07-19 17:53:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:53:55,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260998941] [2022-07-19 17:53:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:53:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms