./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 785a7f7444547118219ac2dc565afc7f15fbca51 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 11:54:11,805 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 11:54:11,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 11:54:11,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 11:54:11,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 11:54:11,812 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 11:54:11,813 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 11:54:11,814 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 11:54:11,815 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 11:54:11,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 11:54:11,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 11:54:11,816 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 11:54:11,816 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 11:54:11,817 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 11:54:11,817 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 11:54:11,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 11:54:11,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 11:54:11,819 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 11:54:11,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 11:54:11,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 11:54:11,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 11:54:11,822 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 11:54:11,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 11:54:11,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 11:54:11,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 11:54:11,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 11:54:11,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 11:54:11,825 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 11:54:11,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 11:54:11,826 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 11:54:11,826 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 11:54:11,827 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 11:54:11,827 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 11:54:11,827 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 11:54:11,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 11:54:11,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 11:54:11,828 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 11:54:11,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 11:54:11,835 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 11:54:11,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 11:54:11,836 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 11:54:11,836 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 11:54:11,836 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 11:54:11,836 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 11:54:11,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 11:54:11,837 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 11:54:11,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 11:54:11,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 11:54:11,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 11:54:11,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 11:54:11,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 11:54:11,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 11:54:11,839 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 11:54:11,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 11:54:11,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 11:54:11,840 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer 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(__VERIFIER_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 -> 785a7f7444547118219ac2dc565afc7f15fbca51 [2018-12-02 11:54:11,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 11:54:11,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 11:54:11,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 11:54:11,866 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 11:54:11,866 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 11:54:11,867 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c [2018-12-02 11:54:11,901 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/data/de1e91521/bba3bdde8f064d30bb34591094aa6151/FLAG80dd43359 [2018-12-02 11:54:12,267 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 11:54:12,267 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/sv-benchmarks/c/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c [2018-12-02 11:54:12,273 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/data/de1e91521/bba3bdde8f064d30bb34591094aa6151/FLAG80dd43359 [2018-12-02 11:54:12,639 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/data/de1e91521/bba3bdde8f064d30bb34591094aa6151 [2018-12-02 11:54:12,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 11:54:12,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 11:54:12,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 11:54:12,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 11:54:12,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 11:54:12,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:12,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12, skipping insertion in model container [2018-12-02 11:54:12,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:12,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 11:54:12,685 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 11:54:12,864 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 11:54:12,867 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 11:54:12,914 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 11:54:12,973 INFO L195 MainTranslator]: Completed translation [2018-12-02 11:54:12,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12 WrapperNode [2018-12-02 11:54:12,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 11:54:12,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 11:54:12,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 11:54:12,974 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 11:54:12,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:12,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:12,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 11:54:12,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 11:54:12,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 11:54:12,992 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 11:54:12,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:12,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:13,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:13,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:13,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:13,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:13,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... [2018-12-02 11:54:13,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 11:54:13,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 11:54:13,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 11:54:13,028 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 11:54:13,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 11:54:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 11:54:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 11:54:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 11:54:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 11:54:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 11:54:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 11:54:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 11:54:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 11:54:13,658 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 11:54:13,658 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 11:54:13,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:13 BoogieIcfgContainer [2018-12-02 11:54:13,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 11:54:13,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 11:54:13,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 11:54:13,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 11:54:13,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:54:12" (1/3) ... [2018-12-02 11:54:13,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8eaa3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:54:13, skipping insertion in model container [2018-12-02 11:54:13,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:12" (2/3) ... [2018-12-02 11:54:13,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8eaa3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:54:13, skipping insertion in model container [2018-12-02 11:54:13,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:13" (3/3) ... [2018-12-02 11:54:13,665 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label00_true-unreach-call_false-termination.c [2018-12-02 11:54:13,673 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 11:54:13,680 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 11:54:13,693 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 11:54:13,719 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 11:54:13,719 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 11:54:13,719 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 11:54:13,720 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 11:54:13,720 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 11:54:13,720 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 11:54:13,720 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 11:54:13,720 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 11:54:13,720 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 11:54:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-02 11:54:13,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-12-02 11:54:13,745 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:54:13,746 INFO L402 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] [2018-12-02 11:54:13,748 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:54:13,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:54:13,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1845535338, now seen corresponding path program 1 times [2018-12-02 11:54:13,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 11:54:13,754 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 11:54:13,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:13,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:54:13,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:14,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:54:14,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:54:14,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:54:14,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:54:14,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:54:14,053 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-02 11:54:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:54:14,466 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-02 11:54:14,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:54:14,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2018-12-02 11:54:14,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:54:14,475 INFO L225 Difference]: With dead ends: 547 [2018-12-02 11:54:14,475 INFO L226 Difference]: Without dead ends: 278 [2018-12-02 11:54:14,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:54:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-02 11:54:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-02 11:54:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-02 11:54:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2018-12-02 11:54:14,519 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 114 [2018-12-02 11:54:14,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:54:14,520 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2018-12-02 11:54:14,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:54:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2018-12-02 11:54:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-12-02 11:54:14,523 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:54:14,523 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:54:14,524 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:54:14,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:54:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash -457589907, now seen corresponding path program 1 times [2018-12-02 11:54:14,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 11:54:14,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 11:54:14,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:14,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:54:14,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:14,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:54:14,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 11:54:14,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 11:54:14,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 11:54:14,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 11:54:14,611 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 6 states. [2018-12-02 11:54:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:54:15,036 INFO L93 Difference]: Finished difference Result 840 states and 1222 transitions. [2018-12-02 11:54:15,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 11:54:15,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-12-02 11:54:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:54:15,040 INFO L225 Difference]: With dead ends: 840 [2018-12-02 11:54:15,040 INFO L226 Difference]: Without dead ends: 568 [2018-12-02 11:54:15,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-02 11:54:15,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-02 11:54:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-02 11:54:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-02 11:54:15,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2018-12-02 11:54:15,066 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 124 [2018-12-02 11:54:15,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:54:15,067 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2018-12-02 11:54:15,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 11:54:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2018-12-02 11:54:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-12-02 11:54:15,069 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:54:15,070 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:54:15,070 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:54:15,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:54:15,070 INFO L82 PathProgramCache]: Analyzing trace with hash -526425041, now seen corresponding path program 1 times [2018-12-02 11:54:15,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 11:54:15,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 11:54:15,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:15,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:54:15,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:15,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:54:15,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 11:54:15,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 11:54:15,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 11:54:15,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 11:54:15,240 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 5 states. [2018-12-02 11:54:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:54:15,541 INFO L93 Difference]: Finished difference Result 1205 states and 1730 transitions. [2018-12-02 11:54:15,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 11:54:15,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-12-02 11:54:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:54:15,544 INFO L225 Difference]: With dead ends: 1205 [2018-12-02 11:54:15,544 INFO L226 Difference]: Without dead ends: 554 [2018-12-02 11:54:15,545 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 11:54:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-02 11:54:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-02 11:54:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-02 11:54:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 712 transitions. [2018-12-02 11:54:15,555 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 712 transitions. Word has length 125 [2018-12-02 11:54:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:54:15,556 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 712 transitions. [2018-12-02 11:54:15,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 11:54:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 712 transitions. [2018-12-02 11:54:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-12-02 11:54:15,557 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:54:15,557 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:54:15,557 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:54:15,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:54:15,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1583976871, now seen corresponding path program 1 times [2018-12-02 11:54:15,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 11:54:15,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 11:54:15,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:15,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:54:15,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:54:15,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:54:15,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:54:15,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:54:15,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:54:15,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:54:15,610 INFO L87 Difference]: Start difference. First operand 554 states and 712 transitions. Second operand 3 states. [2018-12-02 11:54:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:54:15,879 INFO L93 Difference]: Finished difference Result 1237 states and 1611 transitions. [2018-12-02 11:54:15,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:54:15,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2018-12-02 11:54:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:54:15,883 INFO L225 Difference]: With dead ends: 1237 [2018-12-02 11:54:15,883 INFO L226 Difference]: Without dead ends: 689 [2018-12-02 11:54:15,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:54:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2018-12-02 11:54:15,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 687. [2018-12-02 11:54:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2018-12-02 11:54:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 853 transitions. [2018-12-02 11:54:15,904 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 853 transitions. Word has length 129 [2018-12-02 11:54:15,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:54:15,904 INFO L480 AbstractCegarLoop]: Abstraction has 687 states and 853 transitions. [2018-12-02 11:54:15,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:54:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 853 transitions. [2018-12-02 11:54:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 11:54:15,907 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:54:15,907 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:54:15,907 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:54:15,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:54:15,908 INFO L82 PathProgramCache]: Analyzing trace with hash 78625706, now seen corresponding path program 1 times [2018-12-02 11:54:15,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 11:54:15,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 11:54:15,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:15,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:54:15,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 11:54:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:54:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-02 11:54:16,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:54:16,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:54:16,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:54:16,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:54:16,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:54:16,022 INFO L87 Difference]: Start difference. First operand 687 states and 853 transitions. Second operand 3 states. [2018-12-02 11:54:16,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:54:16,280 INFO L93 Difference]: Finished difference Result 1773 states and 2231 transitions. [2018-12-02 11:54:16,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:54:16,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2018-12-02 11:54:16,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:54:16,282 INFO L225 Difference]: With dead ends: 1773 [2018-12-02 11:54:16,282 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 11:54:16,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:54:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 11:54:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 11:54:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 11:54:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 11:54:16,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2018-12-02 11:54:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:54:16,285 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 11:54:16,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:54:16,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 11:54:16,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 11:54:16,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 11:54:16,448 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-12-02 11:54:16,532 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~a16~0)| ~a16~0) [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-02 11:54:16,533 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,534 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-02 11:54:16,535 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-02 11:54:16,536 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,537 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-02 11:54:16,538 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-02 11:54:16,539 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-02 11:54:16,540 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,541 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,542 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-02 11:54:16,543 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (= ~a21~0 1))) (.cse0 (= 1 |old(~a21~0)|)) (.cse6 (= 1 |old(~a7~0)|)) (.cse7 (= 6 |old(~a16~0)|)) (.cse2 (= |old(~a16~0)| ~a16~0)) (.cse3 (not (= ~a17~0 1))) (.cse4 (not (= 8 ~a12~0))) (.cse5 (= 1 |old(~a17~0)|))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or .cse6 .cse3 .cse4 .cse5) (or .cse6 (and (not (= ~a7~0 1)) .cse2) .cse4) (or .cse7 .cse0 .cse4 (and .cse1 .cse2)) (or (not .cse0) (not (= 1 |old(~a20~0)|)) (not (= 4 |old(~a16~0)|)) (and (= 1 ~a7~0) (= 1 ~a20~0) (= 13 ~a8~0) .cse2 (= 1 ~a21~0) (= 1 ~a17~0)) .cse4 (not .cse6) (not (= 13 |old(~a8~0)|)) (not .cse5)) (or .cse7 (and .cse2 .cse3) .cse4 .cse5))) [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,544 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,545 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-02 11:54:16,546 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 500) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,547 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 11:54:16,548 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a7~0 1)) (not (= ~a16~0 6)) (= ~a12~0 8)) [2018-12-02 11:54:16,549 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 11:54:16,549 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 11:54:16,549 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 1 |old(~a7~0)|) (and (not (= ~a7~0 1)) (= |old(~a16~0)| ~a16~0)) (not (= 8 ~a12~0))) [2018-12-02 11:54:16,549 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-02 11:54:16,549 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (not (= ~a21~0 1))) (.cse2 (not (= ~a16~0 6))) (.cse1 (not (= ~a17~0 1)))) (or (= 6 |old(~a16~0)|) (= 1 |old(~a7~0)|) (and .cse0 .cse1) (and (= 1 ~a20~0) (= 13 ~a8~0) (= 4 ~a16~0)) (and .cse0 .cse2) (not (= 8 ~a12~0)) (and .cse2 .cse1) (not (= ~a7~0 1)))) [2018-12-02 11:54:16,549 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-02 11:54:16,549 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-02 11:54:16,549 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= ~a21~0 1))) (.cse2 (not (= ~a16~0 6))) (.cse1 (not (= ~a17~0 1)))) (or (= 6 |old(~a16~0)|) (= 1 |old(~a7~0)|) (and .cse0 .cse1) (and (= 1 ~a20~0) (= 13 ~a8~0) (= 4 ~a16~0)) (and .cse0 .cse2) (not (= 8 ~a12~0)) (and .cse2 .cse1) (not (= ~a7~0 1)))) [2018-12-02 11:54:16,549 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-02 11:54:16,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:54:16 BoogieIcfgContainer [2018-12-02 11:54:16,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 11:54:16,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 11:54:16,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 11:54:16,562 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 11:54:16,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:13" (3/4) ... [2018-12-02 11:54:16,565 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 11:54:16,570 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 11:54:16,570 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 11:54:16,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 11:54:16,579 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 11:54:16,579 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 11:54:16,601 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((6 == \old(a16) || 1 == \old(a7)) || (!(a21 == 1) && !(a17 == 1))) || ((1 == a20 && 13 == a8) && 4 == a16)) || (!(a21 == 1) && !(a16 == 6))) || !(8 == a12)) || (!(a16 == 6) && !(a17 == 1))) || !(a7 == 1) [2018-12-02 11:54:16,666 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fca62786-8897-4f70-a72c-059a202373c7/bin-2019/uautomizer/witness.graphml [2018-12-02 11:54:16,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 11:54:16,667 INFO L168 Benchmark]: Toolchain (without parser) took 4022.35 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 311.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 162.2 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,668 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 11:54:16,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,668 INFO L168 Benchmark]: Boogie Preprocessor took 35.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,668 INFO L168 Benchmark]: RCFGBuilder took 631.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,669 INFO L168 Benchmark]: TraceAbstraction took 2901.87 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -109.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,669 INFO L168 Benchmark]: Witness Printer took 104.86 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-12-02 11:54:16,670 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 631.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2901.87 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -109.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. * Witness Printer took 104.86 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 500]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((6 == \old(a16) || 1 == \old(a7)) || (!(a21 == 1) && !(a17 == 1))) || ((1 == a20 && 13 == a8) && 4 == a16)) || (!(a21 == 1) && !(a16 == 6))) || !(8 == a12)) || (!(a16 == 6) && !(a17 == 1))) || !(a7 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 493 SDtfs, 894 SDslu, 91 SDs, 0 SdLazy, 2094 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 31 PreInvPairs, 49 NumberOfFragments, 280 HoareAnnotationTreeSize, 31 FomulaSimplifications, 240 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 201 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 636 ConstructedInterpolants, 0 QuantifiedInterpolants, 475836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 71/71 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...