./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:29:49,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:29:49,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:29:49,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:29:49,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:29:49,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:29:49,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:29:49,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:29:49,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:29:49,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:29:49,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:29:49,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:29:49,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:29:49,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:29:49,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:29:49,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:29:49,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:29:49,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:29:49,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:29:49,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:29:49,294 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:29:49,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:29:49,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:29:49,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:29:49,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:29:49,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:29:49,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:29:49,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:29:49,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:29:49,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:29:49,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:29:49,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:29:49,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:29:49,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:29:49,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:29:49,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:29:49,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:29:49,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:29:49,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:29:49,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:29:49,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:29:49,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:29:49,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:29:49,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:29:49,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:29:49,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:29:49,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:29:49,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:29:49,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:29:49,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:29:49,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:29:49,349 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:29:49,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:29:49,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:29:49,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:29:49,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:29:49,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:29:49,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:29:49,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:29:49,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:29:49,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:29:49,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:29:49,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:29:49,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:29:49,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:29:49,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:29:49,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:29:49,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:29:49,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:29:49,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:29:49,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:29:49,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:29:49,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:29:49,353 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:29:49,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:29:49,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:29:49,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 [2022-07-21 05:29:49,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:29:49,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:29:49,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:29:49,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:29:49,733 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:29:49,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2022-07-21 05:29:49,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a47a199/cd8d1d8c09d94c3d9614beed9620fbfe/FLAGfdfdc51a7 [2022-07-21 05:29:50,273 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:29:50,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2022-07-21 05:29:50,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a47a199/cd8d1d8c09d94c3d9614beed9620fbfe/FLAGfdfdc51a7 [2022-07-21 05:29:50,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a47a199/cd8d1d8c09d94c3d9614beed9620fbfe [2022-07-21 05:29:50,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:29:50,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:29:50,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:29:50,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:29:50,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:29:50,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:50" (1/1) ... [2022-07-21 05:29:50,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a1b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:50, skipping insertion in model container [2022-07-21 05:29:50,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:50" (1/1) ... [2022-07-21 05:29:50,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:29:50,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:29:50,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c[1974,1987] [2022-07-21 05:29:51,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:29:51,201 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:29:51,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c[1974,1987] [2022-07-21 05:29:51,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:29:51,424 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:29:51,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51 WrapperNode [2022-07-21 05:29:51,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:29:51,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:29:51,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:29:51,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:29:51,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,656 INFO L137 Inliner]: procedures = 60, calls = 2058, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4373 [2022-07-21 05:29:51,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:29:51,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:29:51,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:29:51,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:29:51,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:29:51,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:29:51,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:29:51,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:29:51,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (1/1) ... [2022-07-21 05:29:51,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:29:51,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:29:51,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:29:52,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:29:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:29:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-21 05:29:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-21 05:29:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-21 05:29:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-21 05:29:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-21 05:29:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-21 05:29:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 05:29:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-21 05:29:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-21 05:29:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-21 05:29:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-21 05:29:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-21 05:29:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-21 05:29:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 05:29:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-21 05:29:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-21 05:29:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-21 05:29:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-21 05:29:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-21 05:29:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-21 05:29:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-21 05:29:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-21 05:29:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-21 05:29:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-21 05:29:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-21 05:29:52,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-21 05:29:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 05:29:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 05:29:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-21 05:29:52,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-21 05:29:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-21 05:29:52,040 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-21 05:29:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-21 05:29:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-21 05:29:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-21 05:29:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-21 05:29:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 05:29:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 05:29:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:29:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:29:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:29:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-21 05:29:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-21 05:29:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-21 05:29:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-21 05:29:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-21 05:29:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-21 05:29:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-21 05:29:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-21 05:29:52,426 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:29:52,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:29:58,584 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:29:58,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:29:58,603 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 05:29:58,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:29:58 BoogieIcfgContainer [2022-07-21 05:29:58,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:29:58,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:29:58,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:29:58,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:29:58,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:29:50" (1/3) ... [2022-07-21 05:29:58,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6934865e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:29:58, skipping insertion in model container [2022-07-21 05:29:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:51" (2/3) ... [2022-07-21 05:29:58,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6934865e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:29:58, skipping insertion in model container [2022-07-21 05:29:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:29:58" (3/3) ... [2022-07-21 05:29:58,613 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M1-1.c [2022-07-21 05:29:58,623 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:29:58,624 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:29:58,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:29:58,697 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@634e1e55, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7d8862d3 [2022-07-21 05:29:58,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:29:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 1361 states, 857 states have (on average 1.2753792298716453) internal successors, (1093), 889 states have internal predecessors, (1093), 481 states have call successors, (481), 21 states have call predecessors, (481), 21 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-07-21 05:29:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2022-07-21 05:29:58,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:29:58,758 INFO L195 NwaCegarLoop]: trace histogram [137, 137, 137, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:29:58,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:29:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:29:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1949760813, now seen corresponding path program 1 times [2022-07-21 05:29:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:29:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815690213] [2022-07-21 05:29:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:29:58,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms