./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-17 16:03:03,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:03:03,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:03:03,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:03:03,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:03:03,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:03:03,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:03:03,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:03:03,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:03:03,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:03:03,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:03:03,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:03:03,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:03:03,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:03:03,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:03:03,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:03:03,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:03:03,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:03:03,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:03:03,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:03:03,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:03:03,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:03:03,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:03:03,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:03:03,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:03:03,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:03:03,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:03:03,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:03:03,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:03:03,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:03:03,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:03:03,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:03:03,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:03:03,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:03:03,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:03:03,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:03:03,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:03:03,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:03:03,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:03:03,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:03:03,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:03:03,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:03:03,575 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:03:03,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:03:03,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:03:03,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:03:03,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:03:03,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:03:03,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:03:03,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:03:03,578 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:03:03,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:03:03,579 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:03:03,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:03:03,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:03:03,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:03:03,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:03:03,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:03:03,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:03:03,581 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:03:03,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:03:03,581 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:03:03,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:03:03,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:03:03,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:03:03,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:03:03,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:03:03,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:03:03,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:03:03,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:03:03,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:03:03,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:03:03,584 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:03:03,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:03:03,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:03:03,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:03:03,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2021-12-17 16:03:03,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:03:03,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:03:03,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:03:03,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:03:03,819 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:03:03,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-12-17 16:03:03,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5740546e4/c304a20e09fa40bd90e50a508ed227ad/FLAGb2e5f6265 [2021-12-17 16:03:04,424 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:03:04,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-12-17 16:03:04,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5740546e4/c304a20e09fa40bd90e50a508ed227ad/FLAGb2e5f6265 [2021-12-17 16:03:04,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5740546e4/c304a20e09fa40bd90e50a508ed227ad [2021-12-17 16:03:04,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:03:04,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:03:04,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:03:04,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:03:04,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:03:04,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:03:04" (1/1) ... [2021-12-17 16:03:04,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a6ad82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:04, skipping insertion in model container [2021-12-17 16:03:04,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:03:04" (1/1) ... [2021-12-17 16:03:04,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:03:04,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:03:05,126 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] [2021-12-17 16:03:05,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:03:05,525 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:03:05,540 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] [2021-12-17 16:03:05,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:03:05,895 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:03:05,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05 WrapperNode [2021-12-17 16:03:05,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:03:05,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:03:05,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:03:05,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:03:05,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:05,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,201 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2021-12-17 16:03:06,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:03:06,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:03:06,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:03:06,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:03:06,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:03:06,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:03:06,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:03:06,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:03:06,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (1/1) ... [2021-12-17 16:03:06,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:03:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:03:06,596 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) [2021-12-17 16:03:06,620 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 [2021-12-17 16:03:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-17 16:03:06,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-17 16:03:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-17 16:03:06,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-17 16:03:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 16:03:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-17 16:03:06,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-17 16:03:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-17 16:03:06,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-17 16:03:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-17 16:03:06,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-17 16:03:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-17 16:03:06,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-17 16:03:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-17 16:03:06,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-17 16:03:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-17 16:03:06,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-17 16:03:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-17 16:03:06,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-17 16:03:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-17 16:03:06,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-17 16:03:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 16:03:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-17 16:03:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-17 16:03:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-17 16:03:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-17 16:03:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-17 16:03:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-17 16:03:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-17 16:03:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-17 16:03:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-17 16:03:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-17 16:03:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-17 16:03:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-17 16:03:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-17 16:03:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-17 16:03:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:03:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-17 16:03:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-17 16:03:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-17 16:03:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-17 16:03:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-17 16:03:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-17 16:03:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-17 16:03:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-17 16:03:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-17 16:03:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-17 16:03:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-17 16:03:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-17 16:03:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-17 16:03:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-17 16:03:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-17 16:03:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-17 16:03:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-17 16:03:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-17 16:03:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-17 16:03:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-17 16:03:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-17 16:03:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-17 16:03:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-17 16:03:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-17 16:03:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-17 16:03:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-17 16:03:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-17 16:03:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-17 16:03:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-17 16:03:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-17 16:03:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-17 16:03:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-17 16:03:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-17 16:03:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-17 16:03:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-17 16:03:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-17 16:03:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-17 16:03:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-17 16:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-17 16:03:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-17 16:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-17 16:03:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-17 16:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-17 16:03:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-17 16:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-17 16:03:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-17 16:03:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-17 16:03:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-17 16:03:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-17 16:03:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-17 16:03:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-17 16:03:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-17 16:03:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-17 16:03:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-17 16:03:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:03:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-17 16:03:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-17 16:03:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:03:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:03:07,193 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:03:07,196 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:03:19,877 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:03:19,905 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:03:19,906 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-17 16:03:19,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:03:19 BoogieIcfgContainer [2021-12-17 16:03:19,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:03:19,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:03:19,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:03:19,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:03:19,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:03:04" (1/3) ... [2021-12-17 16:03:19,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ee130a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:03:19, skipping insertion in model container [2021-12-17 16:03:19,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:03:05" (2/3) ... [2021-12-17 16:03:19,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ee130a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:03:19, skipping insertion in model container [2021-12-17 16:03:19,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:03:19" (3/3) ... [2021-12-17 16:03:19,919 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2021-12-17 16:03:19,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:03:19,926 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 16:03:19,990 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:03:19,999 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 [2021-12-17 16:03:20,000 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 16:03:20,065 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) [2021-12-17 16:03:20,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-17 16:03:20,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:03:20,079 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] [2021-12-17 16:03:20,080 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 16:03:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:03:20,085 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2021-12-17 16:03:20,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:03:20,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955032383] [2021-12-17 16:03:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:03:20,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms