./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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.2-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 01:17:19,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 01:17:19,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 01:17:19,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 01:17:19,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 01:17:19,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 01:17:19,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 01:17:19,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 01:17:19,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 01:17:19,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 01:17:19,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 01:17:19,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 01:17:19,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 01:17:19,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 01:17:19,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 01:17:19,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 01:17:19,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 01:17:19,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 01:17:19,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 01:17:19,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 01:17:19,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 01:17:19,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 01:17:19,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 01:17:19,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 01:17:19,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 01:17:19,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 01:17:19,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 01:17:19,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 01:17:19,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 01:17:19,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 01:17:19,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 01:17:19,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 01:17:19,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 01:17:19,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 01:17:19,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 01:17:19,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 01:17:19,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 01:17:19,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 01:17:19,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 01:17:19,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 01:17:19,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 01:17:19,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 01:17:19,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 01:17:19,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 01:17:19,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 01:17:19,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 01:17:19,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 01:17:19,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 01:17:19,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 01:17:19,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 01:17:19,677 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 01:17:19,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 01:17:19,678 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 01:17:19,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 01:17:19,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 01:17:19,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 01:17:19,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 01:17:19,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 01:17:19,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 01:17:19,679 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 01:17:19,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 01:17:19,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 01:17:19,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 01:17:19,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 01:17:19,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 01:17:19,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 01:17:19,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:17:19,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 01:17:19,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 01:17:19,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 01:17:19,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 01:17:19,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 01:17:19,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 01:17:19,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 01:17:19,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 01:17:19,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2021-12-28 01:17:19,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 01:17:19,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 01:17:19,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 01:17:19,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 01:17:19,991 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 01:17:19,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-12-28 01:17:20,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256422cc8/06c541ee3ba848e78bd9941a32f41ea3/FLAGc7af8ee6c [2021-12-28 01:17:20,674 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 01:17:20,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-12-28 01:17:20,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256422cc8/06c541ee3ba848e78bd9941a32f41ea3/FLAGc7af8ee6c [2021-12-28 01:17:21,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256422cc8/06c541ee3ba848e78bd9941a32f41ea3 [2021-12-28 01:17:21,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 01:17:21,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 01:17:21,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 01:17:21,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 01:17:21,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 01:17:21,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:17:21" (1/1) ... [2021-12-28 01:17:21,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d7e94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:21, skipping insertion in model container [2021-12-28 01:17:21,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:17:21" (1/1) ... [2021-12-28 01:17:21,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 01:17:21,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 01:17:21,378 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.2-2.c[1870,1883] [2021-12-28 01:17:21,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:17:21,893 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 01:17:21,906 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.2-2.c[1870,1883] [2021-12-28 01:17:22,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:17:22,145 INFO L208 MainTranslator]: Completed translation [2021-12-28 01:17:22,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22 WrapperNode [2021-12-28 01:17:22,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 01:17:22,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 01:17:22,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 01:17:22,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 01:17:22,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,456 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2021-12-28 01:17:22,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 01:17:22,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 01:17:22,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 01:17:22,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 01:17:22,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 01:17:22,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 01:17:22,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 01:17:22,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 01:17:22,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (1/1) ... [2021-12-28 01:17:22,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:17:22,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 01:17:22,880 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) [2021-12-28 01:17:22,903 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 [2021-12-28 01:17:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-28 01:17:22,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-28 01:17:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-28 01:17:22,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-28 01:17:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 01:17:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-28 01:17:22,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-28 01:17:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-28 01:17:22,926 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-28 01:17:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-28 01:17:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-28 01:17:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-28 01:17:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-28 01:17:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-28 01:17:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-28 01:17:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-28 01:17:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-28 01:17:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-28 01:17:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-28 01:17:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-28 01:17:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-28 01:17:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 01:17:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-28 01:17:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-28 01:17:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-28 01:17:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-28 01:17:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-28 01:17:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-28 01:17:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-28 01:17:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-28 01:17:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-28 01:17:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-28 01:17:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-28 01:17:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-28 01:17:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-28 01:17:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-28 01:17:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 01:17:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-28 01:17:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-28 01:17:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-28 01:17:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-28 01:17:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-28 01:17:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-28 01:17:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-28 01:17:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-28 01:17:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-28 01:17:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-28 01:17:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-28 01:17:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-28 01:17:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-28 01:17:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-28 01:17:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-28 01:17:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-28 01:17:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-28 01:17:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-28 01:17:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-28 01:17:22,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-28 01:17:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-28 01:17:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-28 01:17:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-28 01:17:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-28 01:17:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-28 01:17:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-28 01:17:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-28 01:17:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-28 01:17:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-28 01:17:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-28 01:17:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-28 01:17:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-28 01:17:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-28 01:17:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-28 01:17:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-28 01:17:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-28 01:17:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-28 01:17:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-28 01:17:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-28 01:17:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-28 01:17:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-28 01:17:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-28 01:17:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-28 01:17:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-28 01:17:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-28 01:17:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-28 01:17:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-28 01:17:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-28 01:17:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-28 01:17:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-28 01:17:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-28 01:17:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-28 01:17:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-28 01:17:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-28 01:17:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 01:17:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-28 01:17:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-28 01:17:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 01:17:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 01:17:23,638 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 01:17:23,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 01:17:38,997 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 01:17:39,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 01:17:39,026 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-28 01:17:39,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:17:39 BoogieIcfgContainer [2021-12-28 01:17:39,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 01:17:39,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 01:17:39,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 01:17:39,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 01:17:39,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 01:17:21" (1/3) ... [2021-12-28 01:17:39,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712fe9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:17:39, skipping insertion in model container [2021-12-28 01:17:39,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:17:22" (2/3) ... [2021-12-28 01:17:39,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712fe9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:17:39, skipping insertion in model container [2021-12-28 01:17:39,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:17:39" (3/3) ... [2021-12-28 01:17:39,039 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2021-12-28 01:17:39,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 01:17:39,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 01:17:39,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 01:17:39,094 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 [2021-12-28 01:17:39,095 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 01:17:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2021-12-28 01:17:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 01:17:39,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:17:39,169 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:17:39,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:17:39,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:17:39,181 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2021-12-28 01:17:39,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:17:39,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60162991] [2021-12-28 01:17:39,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:17:39,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms