./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.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 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:36:44,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:36:44,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:36:44,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:36:44,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:36:44,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:36:44,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:36:44,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:36:44,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:36:44,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:36:44,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:36:44,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:36:44,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:36:44,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:36:44,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:36:44,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:36:44,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:36:44,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:36:44,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:36:44,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:36:44,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:36:44,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:36:44,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:36:44,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:36:44,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:36:44,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:36:44,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:36:44,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:36:44,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:36:44,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:36:44,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:36:44,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:36:44,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:36:44,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:36:44,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:36:44,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:36:44,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:36:44,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:36:44,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:36:44,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:36:44,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:36:44,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:36:44,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:36:44,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:36:44,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:36:44,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:36:44,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:36:44,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:36:44,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:36:44,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:36:44,486 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:36:44,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:36:44,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:36:44,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:36:44,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:36:44,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:36:44,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:36:44,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:36:44,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:36:44,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:36:44,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:36:44,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:36:44,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:36:44,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:36:44,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:36:44,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:36:44,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:36:44,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:36:44,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:36:44,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:36:44,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:36:44,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:36:44,490 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:36:44,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:36:44,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:36:44,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 [2022-02-20 18:36:44,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:36:44,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:36:44,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:36:44,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:36:44,699 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:36:44,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2022-02-20 18:36:44,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e406da026/47dba59375ae4b6d91b8bec1d95e4212/FLAGb8150d879 [2022-02-20 18:36:45,243 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:36:45,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2022-02-20 18:36:45,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e406da026/47dba59375ae4b6d91b8bec1d95e4212/FLAGb8150d879 [2022-02-20 18:36:45,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e406da026/47dba59375ae4b6d91b8bec1d95e4212 [2022-02-20 18:36:45,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:36:45,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:36:45,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:36:45,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:36:45,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:36:45,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:36:45" (1/1) ... [2022-02-20 18:36:45,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f04ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:45, skipping insertion in model container [2022-02-20 18:36:45,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:36:45" (1/1) ... [2022-02-20 18:36:45,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:36:45,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:36:45,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2022-02-20 18:36:46,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:36:46,475 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:36:46,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2022-02-20 18:36:46,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:36:46,838 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:36:46,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46 WrapperNode [2022-02-20 18:36:46,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:36:46,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:36:46,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:36:46,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:36:46,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:46,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,329 INFO L137 Inliner]: procedures = 70, calls = 5239, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 9786 [2022-02-20 18:36:47,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:36:47,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:36:47,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:36:47,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:36:47,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:36:47,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:36:47,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:36:47,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:36:47,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (1/1) ... [2022-02-20 18:36:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:36:47,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:36:47,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 18:36:47,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 18:36:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:36:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-02-20 18:36:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-02-20 18:36:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-02-20 18:36:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-02-20 18:36:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-02-20 18:36:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-02-20 18:36:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 18:36:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-02-20 18:36:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-02-20 18:36:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-02-20 18:36:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-02-20 18:36:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-02-20 18:36:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-02-20 18:36:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-02-20 18:36:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-02-20 18:36:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 18:36:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-02-20 18:36:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-02-20 18:36:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-02-20 18:36:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-02-20 18:36:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-02-20 18:36:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-02-20 18:36:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-02-20 18:36:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-02-20 18:36:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-02-20 18:36:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-02-20 18:36:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-02-20 18:36:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-02-20 18:36:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-02-20 18:36:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-02-20 18:36:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-02-20 18:36:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-02-20 18:36:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-02-20 18:36:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-02-20 18:36:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 18:36:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-02-20 18:36:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-02-20 18:36:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 18:36:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-02-20 18:36:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-02-20 18:36:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-02-20 18:36:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-02-20 18:36:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-02-20 18:36:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-02-20 18:36:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-02-20 18:36:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-02-20 18:36:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-20 18:36:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-20 18:36:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:36:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:36:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:36:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-02-20 18:36:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-02-20 18:36:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-02-20 18:36:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-02-20 18:36:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-02-20 18:36:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-02-20 18:36:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-02-20 18:36:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-02-20 18:36:48,491 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:36:48,493 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:37:02,492 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:37:02,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:37:02,534 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 18:37:02,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:02 BoogieIcfgContainer [2022-02-20 18:37:02,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:37:02,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:37:02,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:37:02,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:37:02,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:36:45" (1/3) ... [2022-02-20 18:37:02,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32064db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:02, skipping insertion in model container [2022-02-20 18:37:02,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:36:46" (2/3) ... [2022-02-20 18:37:02,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32064db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:37:02, skipping insertion in model container [2022-02-20 18:37:02,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:37:02" (3/3) ... [2022-02-20 18:37:02,552 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M4.c [2022-02-20 18:37:02,561 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:37:02,561 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:37:02,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:37:02,627 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:37:02,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:37:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 3589 states, 2050 states have (on average 1.1653658536585365) internal successors, (2389), 2055 states have internal predecessors, (2389), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1511), 1509 states have call predecessors, (1511), 1511 states have call successors, (1511) [2022-02-20 18:37:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2022-02-20 18:37:02,833 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:37:02,836 INFO L514 BasicCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:37:02,837 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:37:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:37:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1434617797, now seen corresponding path program 1 times [2022-02-20 18:37:02,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:37:02,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349918510] [2022-02-20 18:37:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:37:02,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms