./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:53:26,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:53:26,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:53:26,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:53:26,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:53:26,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:53:26,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:53:26,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:53:26,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:53:26,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:53:26,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:53:26,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:53:26,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:53:26,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:53:26,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:53:26,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:53:26,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:53:26,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:53:26,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:53:26,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:53:26,495 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:53:26,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:53:26,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:53:26,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:53:26,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:53:26,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:53:26,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:53:26,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:53:26,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:53:26,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:53:26,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:53:26,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:53:26,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:53:26,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:53:26,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:53:26,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:53:26,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:53:26,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:53:26,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:53:26,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:53:26,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:53:26,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:53:26,514 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:53:26,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:53:26,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:53:26,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:53:26,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:53:26,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:53:26,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:53:26,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:53:26,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:53:26,541 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:53:26,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:53:26,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:53:26,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:53:26,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:53:26,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:53:26,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:53:26,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:53:26,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:53:26,543 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:53:26,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:53:26,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:53:26,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:53:26,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:53:26,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:53:26,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:53:26,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:26,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:53:26,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:53:26,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:53:26,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:53:26,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:53:26,546 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:53:26,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:53:26,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:53:26,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2022-07-12 06:53:26,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:53:26,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:53:26,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:53:26,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:53:26,782 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:53:26,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-07-12 06:53:26,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e3078405/7cdf8e36d2174c799648e776ae3835ec/FLAG9cd4f3b30 [2022-07-12 06:53:27,325 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:53:27,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-07-12 06:53:27,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e3078405/7cdf8e36d2174c799648e776ae3835ec/FLAG9cd4f3b30 [2022-07-12 06:53:27,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e3078405/7cdf8e36d2174c799648e776ae3835ec [2022-07-12 06:53:27,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:53:27,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:53:27,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:27,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:53:27,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:53:27,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:27" (1/1) ... [2022-07-12 06:53:27,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c0c95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:27, skipping insertion in model container [2022-07-12 06:53:27,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:53:27" (1/1) ... [2022-07-12 06:53:27,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:53:27,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:53:27,825 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_ctm.3-1.c[1870,1883] [2022-07-12 06:53:28,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:28,255 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:53:28,267 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_ctm.3-1.c[1870,1883] [2022-07-12 06:53:28,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:53:28,458 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:53:28,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28 WrapperNode [2022-07-12 06:53:28,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:53:28,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:28,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:53:28,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:53:28,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,717 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-07-12 06:53:28,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:53:28,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:53:28,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:53:28,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:53:28,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:28,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:29,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:53:29,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:53:29,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:53:29,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:53:29,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (1/1) ... [2022-07-12 06:53:29,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:53:29,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:53:29,055 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) [2022-07-12 06:53:29,062 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 [2022-07-12 06:53:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-07-12 06:53:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-07-12 06:53:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-07-12 06:53:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-07-12 06:53:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 06:53:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-07-12 06:53:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-12 06:53:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-12 06:53:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-12 06:53:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-07-12 06:53:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-07-12 06:53:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-12 06:53:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-12 06:53:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-07-12 06:53:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-07-12 06:53:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-07-12 06:53:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-07-12 06:53:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 06:53:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-12 06:53:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-12 06:53:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-07-12 06:53:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-07-12 06:53:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-07-12 06:53:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-07-12 06:53:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-07-12 06:53:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-07-12 06:53:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-07-12 06:53:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-07-12 06:53:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-07-12 06:53:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-07-12 06:53:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-12 06:53:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-12 06:53:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:53:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-12 06:53:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-12 06:53:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-07-12 06:53:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-07-12 06:53:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-07-12 06:53:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-07-12 06:53:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-07-12 06:53:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-12 06:53:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-12 06:53:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-07-12 06:53:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-07-12 06:53:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-12 06:53:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-12 06:53:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-07-12 06:53:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-07-12 06:53:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-07-12 06:53:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-07-12 06:53:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-12 06:53:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-07-12 06:53:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-07-12 06:53:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-07-12 06:53:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-07-12 06:53:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-07-12 06:53:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-07-12 06:53:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-07-12 06:53:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-07-12 06:53:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-07-12 06:53:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-07-12 06:53:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-07-12 06:53:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-07-12 06:53:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-07-12 06:53:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-07-12 06:53:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-07-12 06:53:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-07-12 06:53:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-07-12 06:53:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-07-12 06:53:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-07-12 06:53:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-07-12 06:53:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-07-12 06:53:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-07-12 06:53:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-07-12 06:53:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-07-12 06:53:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-07-12 06:53:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-07-12 06:53:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-07-12 06:53:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-07-12 06:53:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:53:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-07-12 06:53:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:53:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:53:29,620 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:53:29,623 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:53:46,515 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:53:46,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:53:46,537 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 06:53:46,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:46 BoogieIcfgContainer [2022-07-12 06:53:46,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:53:46,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:53:46,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:53:46,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:53:46,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:53:27" (1/3) ... [2022-07-12 06:53:46,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c283ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:46, skipping insertion in model container [2022-07-12 06:53:46,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:53:28" (2/3) ... [2022-07-12 06:53:46,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c283ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:46, skipping insertion in model container [2022-07-12 06:53:46,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:46" (3/3) ... [2022-07-12 06:53:46,559 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-07-12 06:53:46,570 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:53:46,571 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:53:46,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:53:46,676 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@6e1cda56, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5d5511b [2022-07-12 06:53:46,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:53:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2022-07-12 06:53:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-12 06:53:46,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:53:46,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:53:46,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:53:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:53:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-07-12 06:53:46,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:53:46,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925703808] [2022-07-12 06:53:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:53:46,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms