./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin001_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/pthread-wmm/thin001_tso.opt.i -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 08e72c65eb1fc04376b30451871062e62e5e1ff7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:09:01,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:09:01,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:09:01,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:09:01,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:09:01,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:09:01,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:09:01,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:09:01,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:09:01,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:09:01,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:09:01,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:09:01,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:09:01,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:09:01,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:09:01,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:09:01,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:09:01,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:09:01,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:09:01,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:09:01,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:09:01,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:09:01,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:09:01,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:09:01,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:09:01,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:09:01,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:09:01,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:09:01,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:09:01,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:09:01,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:09:01,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:09:01,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:09:01,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:09:01,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:09:01,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:09:01,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:09:01,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:09:01,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:09:01,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:09:01,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:09:01,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:09:01,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:09:01,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:09:01,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:09:01,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:09:01,635 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:09:01,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:09:01,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:09:01,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:09:01,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:09:01,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:09:01,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:09:01,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:09:01,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:09:01,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:09:01,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:09:01,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:09:01,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:09:01,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:09:01,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:09:01,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:09:01,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:09:01,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:09:01,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:09:01,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:09:01,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:09:01,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:09:01,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:09:01,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:09:01,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:09:01,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 08e72c65eb1fc04376b30451871062e62e5e1ff7 [2020-10-20 03:09:01,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:09:01,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:09:01,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:09:01,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:09:01,882 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:09:01,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin001_tso.opt.i [2020-10-20 03:09:01,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0744cf70d/8e7ee4ad6c3f4b93b3e1ad670cca0d83/FLAG3a6892bdd [2020-10-20 03:09:02,564 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:09:02,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin001_tso.opt.i [2020-10-20 03:09:02,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0744cf70d/8e7ee4ad6c3f4b93b3e1ad670cca0d83/FLAG3a6892bdd [2020-10-20 03:09:02,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0744cf70d/8e7ee4ad6c3f4b93b3e1ad670cca0d83 [2020-10-20 03:09:02,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:09:02,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:09:02,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:09:02,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:09:02,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:09:02,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:09:02" (1/1) ... [2020-10-20 03:09:02,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a33b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:02, skipping insertion in model container [2020-10-20 03:09:02,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:09:02" (1/1) ... [2020-10-20 03:09:02,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:09:03,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:09:03,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:09:03,523 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:09:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:09:03,700 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:09:03,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03 WrapperNode [2020-10-20 03:09:03,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:09:03,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:09:03,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:09:03,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:09:03,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:09:03,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:09:03,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:09:03,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:09:03,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... [2020-10-20 03:09:03,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:09:03,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:09:03,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:09:03,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:09:03,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 03:09:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:09:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:09:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:09:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:09:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:09:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:09:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:09:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:09:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:09:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:09:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:09:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:09:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:09:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:09:03,869 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:09:04,304 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:09:04,305 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:09:04,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:09:04 BoogieIcfgContainer [2020-10-20 03:09:04,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:09:04,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:09:04,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:09:04,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:09:04,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:09:02" (1/3) ... [2020-10-20 03:09:04,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38955318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:09:04, skipping insertion in model container [2020-10-20 03:09:04,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:03" (2/3) ... [2020-10-20 03:09:04,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38955318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:09:04, skipping insertion in model container [2020-10-20 03:09:04,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:09:04" (3/3) ... [2020-10-20 03:09:04,317 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2020-10-20 03:09:04,329 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:09:04,329 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:09:04,337 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:09:04,338 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:09:04,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,384 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,385 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,395 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,395 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,395 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,396 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,403 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,403 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:04,409 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:09:04,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:09:04,440 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:09:04,440 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:09:04,440 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:09:04,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:09:04,441 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:09:04,441 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:09:04,441 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:09:04,441 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:09:04,454 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:09:04,456 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-20 03:09:04,458 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-20 03:09:04,460 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-20 03:09:04,507 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-20 03:09:04,507 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:09:04,513 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:09:04,516 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:09:06,654 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-20 03:09:06,765 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-20 03:09:06,856 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-20 03:09:06,856 INFO L134 LiptonReduction]: Total number of compositions: 73 [2020-10-20 03:09:06,863 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-20 03:09:06,890 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-20 03:09:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-20 03:09:06,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:09:06,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:06,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:09:06,902 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:09:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:06,908 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-10-20 03:09:06,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:06,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407444679] [2020-10-20 03:09:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:09:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:09:07,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407444679] [2020-10-20 03:09:07,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:09:07,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:09:07,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523677118] [2020-10-20 03:09:07,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:09:07,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:09:07,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:09:07,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:09:07,168 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-20 03:09:07,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:09:07,214 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-20 03:09:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:09:07,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 03:09:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:09:07,239 INFO L225 Difference]: With dead ends: 282 [2020-10-20 03:09:07,239 INFO L226 Difference]: Without dead ends: 218 [2020-10-20 03:09:07,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:09:07,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-20 03:09:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-20 03:09:07,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-20 03:09:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-20 03:09:07,309 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-20 03:09:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:09:07,310 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-20 03:09:07,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:09:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-20 03:09:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:09:07,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:07,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:09:07,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:09:07,313 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:09:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:07,313 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-10-20 03:09:07,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:07,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275516924] [2020-10-20 03:09:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:09:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:09:07,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275516924] [2020-10-20 03:09:07,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:09:07,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:09:07,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924096917] [2020-10-20 03:09:07,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:09:07,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:09:07,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:09:07,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:09:07,440 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-20 03:09:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:09:07,469 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-20 03:09:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:09:07,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 03:09:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:09:07,472 INFO L225 Difference]: With dead ends: 242 [2020-10-20 03:09:07,472 INFO L226 Difference]: Without dead ends: 146 [2020-10-20 03:09:07,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:09:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-20 03:09:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-20 03:09:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-20 03:09:07,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-20 03:09:07,487 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-20 03:09:07,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:09:07,488 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-20 03:09:07,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:09:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-20 03:09:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:09:07,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:07,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:09:07,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:09:07,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:09:07,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:07,491 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-10-20 03:09:07,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:07,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274574630] [2020-10-20 03:09:07,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:09:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:09:07,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274574630] [2020-10-20 03:09:07,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:09:07,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:09:07,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644174213] [2020-10-20 03:09:07,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:09:07,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:09:07,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:09:07,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:09:07,597 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-20 03:09:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:09:07,603 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-10-20 03:09:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:09:07,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 03:09:07,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:09:07,606 INFO L225 Difference]: With dead ends: 140 [2020-10-20 03:09:07,606 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 03:09:07,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:09:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 03:09:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-20 03:09:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-20 03:09:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-10-20 03:09:07,631 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-10-20 03:09:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:09:07,632 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-10-20 03:09:07,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:09:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-10-20 03:09:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:09:07,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:07,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:09:07,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:09:07,636 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:09:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:07,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-10-20 03:09:07,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:07,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300941350] [2020-10-20 03:09:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:09:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:09:07,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300941350] [2020-10-20 03:09:07,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:09:07,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:09:07,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547480789] [2020-10-20 03:09:07,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:09:07,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:09:07,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:09:07,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:09:07,738 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-10-20 03:09:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:09:07,762 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-10-20 03:09:07,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:09:07,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 03:09:07,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:09:07,763 INFO L225 Difference]: With dead ends: 158 [2020-10-20 03:09:07,764 INFO L226 Difference]: Without dead ends: 68 [2020-10-20 03:09:07,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:09:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-20 03:09:07,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-20 03:09:07,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-20 03:09:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-20 03:09:07,771 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-10-20 03:09:07,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:09:07,771 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-20 03:09:07,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:09:07,771 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-20 03:09:07,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:09:07,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:07,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:09:07,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:09:07,773 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:09:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:07,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-10-20 03:09:07,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:07,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065114740] [2020-10-20 03:09:07,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:09:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:09:07,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065114740] [2020-10-20 03:09:07,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:09:07,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:09:07,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439057419] [2020-10-20 03:09:07,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:09:07,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:09:07,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:09:07,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:09:07,819 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-20 03:09:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:09:07,834 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-10-20 03:09:07,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:09:07,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-20 03:09:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:09:07,835 INFO L225 Difference]: With dead ends: 56 [2020-10-20 03:09:07,835 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:09:07,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:09:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:09:07,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:09:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:09:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:09:07,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-20 03:09:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:09:07,837 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:09:07,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:09:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:09:07,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:09:07,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:09:07,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:09:07 BasicIcfg [2020-10-20 03:09:07,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:09:07,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:09:07,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:09:07,842 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:09:07,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:09:04" (3/4) ... [2020-10-20 03:09:07,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:09:07,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:09:07,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:09:07,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:09:07,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:09:07,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:09:07,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:09:07,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:09:07,910 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:09:07,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:09:07,913 INFO L168 Benchmark]: Toolchain (without parser) took 4997.24 ms. Allocated memory was 41.4 MB in the beginning and 64.0 MB in the end (delta: 22.5 MB). Free memory was 18.3 MB in the beginning and 17.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,913 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 31.5 MB. Free memory was 8.7 MB in the beginning and 8.7 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.48 ms. Allocated memory was 41.4 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). Free memory was 17.4 MB in the beginning and 10.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.66 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 10.1 MB in the beginning and 26.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 276.3 kB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,916 INFO L168 Benchmark]: Boogie Preprocessor took 31.20 ms. Allocated memory is still 43.5 MB. Free memory was 26.8 MB in the beginning and 25.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,916 INFO L168 Benchmark]: RCFGBuilder took 520.95 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 25.1 MB in the beginning and 15.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,917 INFO L168 Benchmark]: TraceAbstraction took 3532.37 ms. Allocated memory was 44.6 MB in the beginning and 64.0 MB in the end (delta: 19.4 MB). Free memory was 15.5 MB in the beginning and 21.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,918 INFO L168 Benchmark]: Witness Printer took 69.34 ms. Allocated memory is still 64.0 MB. Free memory was 21.0 MB in the beginning and 17.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:07,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 31.5 MB. Free memory was 8.7 MB in the beginning and 8.7 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 780.48 ms. Allocated memory was 41.4 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). Free memory was 17.4 MB in the beginning and 10.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 52.66 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 10.1 MB in the beginning and 26.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 276.3 kB. Max. memory is 14.3 GB. * Boogie Preprocessor took 31.20 ms. Allocated memory is still 43.5 MB. Free memory was 26.8 MB in the beginning and 25.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 520.95 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 25.1 MB in the beginning and 15.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3532.37 ms. Allocated memory was 44.6 MB in the beginning and 64.0 MB in the end (delta: 19.4 MB). Free memory was 15.5 MB in the beginning and 21.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 14.3 GB. * Witness Printer took 69.34 ms. Allocated memory is still 64.0 MB. Free memory was 21.0 MB in the beginning and 17.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1074 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...