/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:12:02,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:12:02,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:12:02,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:12:02,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:12:02,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:12:02,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:12:02,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:12:02,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:12:02,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:12:02,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:12:02,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:12:02,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:12:02,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:12:02,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:12:02,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:12:02,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:12:02,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:12:02,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:12:02,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:12:02,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:12:02,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:12:02,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:12:02,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:12:02,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:12:02,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:12:02,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:12:02,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:12:02,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:12:02,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:12:02,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:12:02,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:12:02,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:12:02,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:12:02,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:12:02,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:12:02,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:12:02,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:12:02,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:12:02,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:12:02,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:12:02,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-04-17 22:12:02,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:12:02,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:12:02,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:12:02,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:12:02,829 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:12:02,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:12:02,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:12:02,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:12:02,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:12:02,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:12:02,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:12:02,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:12:02,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:12:02,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:12:02,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:12:02,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:12:02,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:12:02,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:12:02,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:12:02,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:12:02,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:12:02,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:12:02,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:12:02,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:12:02,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:12:02,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:12:02,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:12:02,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:12:02,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:12:03,153 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:12:03,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:12:03,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:12:03,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:12:03,180 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:12:03,181 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-04-17 22:12:03,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5cec071/b38c5e01b5a549fe97dba70cf74e1263/FLAGd9fbcb1fd [2020-04-17 22:12:03,814 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:12:03,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-04-17 22:12:03,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5cec071/b38c5e01b5a549fe97dba70cf74e1263/FLAGd9fbcb1fd [2020-04-17 22:12:04,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5cec071/b38c5e01b5a549fe97dba70cf74e1263 [2020-04-17 22:12:04,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:12:04,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:12:04,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:12:04,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:12:04,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:12:04,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc23754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04, skipping insertion in model container [2020-04-17 22:12:04,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:12:04,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:12:04,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:12:04,723 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:12:04,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:12:04,867 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:12:04,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04 WrapperNode [2020-04-17 22:12:04,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:12:04,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:12:04,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:12:04,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:12:04,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:12:04,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:12:04,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:12:04,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:12:04,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (1/1) ... [2020-04-17 22:12:04,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:12:04,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:12:04,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:12:04,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:12:04,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (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 [2020-04-17 22:12:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:12:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:12:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:12:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:12:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:12:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:12:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:12:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:12:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:12:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:12:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-17 22:12:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-17 22:12:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:12:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:12:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:12:05,037 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:12:05,479 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:12:05,480 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:12:05,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:12:05 BoogieIcfgContainer [2020-04-17 22:12:05,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:12:05,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:12:05,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:12:05,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:12:05,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:12:04" (1/3) ... [2020-04-17 22:12:05,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b228a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:12:05, skipping insertion in model container [2020-04-17 22:12:05,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:12:04" (2/3) ... [2020-04-17 22:12:05,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b228a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:12:05, skipping insertion in model container [2020-04-17 22:12:05,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:12:05" (3/3) ... [2020-04-17 22:12:05,505 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-04-17 22:12:05,517 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:12:05,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:12:05,526 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:12:05,528 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:12:05,563 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,564 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,564 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,564 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,565 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,565 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,566 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,566 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,566 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,567 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,567 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,568 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,570 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,570 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,570 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,570 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,572 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,572 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,573 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,573 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,573 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,573 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,574 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,574 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,579 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,580 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,580 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,580 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,585 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,586 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,586 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,586 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,589 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,589 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,589 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,590 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,593 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,594 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,594 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,594 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:12:05,613 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 22:12:05,631 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:12:05,632 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:12:05,632 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:12:05,632 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:12:05,632 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:12:05,632 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:12:05,632 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:12:05,633 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:12:05,647 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-04-17 22:12:05,649 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-04-17 22:12:05,694 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-04-17 22:12:05,694 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:12:05,700 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-17 22:12:05,703 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-04-17 22:12:05,728 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-04-17 22:12:05,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:12:05,730 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-17 22:12:05,734 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-17 22:12:05,735 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:12:07,645 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-17 22:12:07,927 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-04-17 22:12:07,927 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-04-17 22:12:07,931 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-04-17 22:12:07,980 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-04-17 22:12:07,982 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-04-17 22:12:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 22:12:07,992 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:07,993 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:07,993 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:07,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:08,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-04-17 22:12:08,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:08,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016807011] [2020-04-17 22:12:08,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:08,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016807011] [2020-04-17 22:12:08,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:08,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:12:08,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957689698] [2020-04-17 22:12:08,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:12:08,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:08,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:12:08,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:12:08,323 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-04-17 22:12:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:08,411 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-04-17 22:12:08,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:12:08,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 22:12:08,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:08,455 INFO L225 Difference]: With dead ends: 670 [2020-04-17 22:12:08,455 INFO L226 Difference]: Without dead ends: 526 [2020-04-17 22:12:08,457 INFO L678 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 [2020-04-17 22:12:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-04-17 22:12:08,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-04-17 22:12:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-04-17 22:12:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-04-17 22:12:08,599 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-04-17 22:12:08,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:08,601 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-04-17 22:12:08,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:12:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-04-17 22:12:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:12:08,605 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:08,606 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:08,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:08,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-04-17 22:12:08,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:08,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326063075] [2020-04-17 22:12:08,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:08,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326063075] [2020-04-17 22:12:08,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:08,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:12:08,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031307253] [2020-04-17 22:12:08,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:12:08,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:08,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:12:08,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:12:08,729 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-04-17 22:12:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:08,793 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-04-17 22:12:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:12:08,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 22:12:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:08,797 INFO L225 Difference]: With dead ends: 682 [2020-04-17 22:12:08,798 INFO L226 Difference]: Without dead ends: 394 [2020-04-17 22:12:08,798 INFO L678 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 [2020-04-17 22:12:08,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-04-17 22:12:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-04-17 22:12:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-04-17 22:12:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-04-17 22:12:08,820 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-04-17 22:12:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:08,821 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-04-17 22:12:08,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:12:08,821 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-04-17 22:12:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:12:08,829 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:08,829 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:08,829 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:08,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:08,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-04-17 22:12:08,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:08,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301549649] [2020-04-17 22:12:08,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:08,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301549649] [2020-04-17 22:12:08,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:08,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:12:08,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682646403] [2020-04-17 22:12:08,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:12:08,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:08,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:12:08,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:12:08,923 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-04-17 22:12:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:08,932 INFO L93 Difference]: Finished difference Result 376 states and 1155 transitions. [2020-04-17 22:12:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:12:08,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-04-17 22:12:08,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:08,936 INFO L225 Difference]: With dead ends: 376 [2020-04-17 22:12:08,936 INFO L226 Difference]: Without dead ends: 376 [2020-04-17 22:12:08,936 INFO L678 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 [2020-04-17 22:12:08,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-04-17 22:12:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-04-17 22:12:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-04-17 22:12:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1155 transitions. [2020-04-17 22:12:08,949 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1155 transitions. Word has length 12 [2020-04-17 22:12:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:08,949 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 1155 transitions. [2020-04-17 22:12:08,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:12:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1155 transitions. [2020-04-17 22:12:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 22:12:08,951 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:08,951 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:08,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:08,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1070016734, now seen corresponding path program 1 times [2020-04-17 22:12:08,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:08,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284504785] [2020-04-17 22:12:08,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:08,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284504785] [2020-04-17 22:12:08,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:08,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:12:08,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102878021] [2020-04-17 22:12:09,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:12:09,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:12:09,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:12:09,001 INFO L87 Difference]: Start difference. First operand 376 states and 1155 transitions. Second operand 4 states. [2020-04-17 22:12:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,030 INFO L93 Difference]: Finished difference Result 526 states and 1582 transitions. [2020-04-17 22:12:09,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:12:09,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-04-17 22:12:09,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,037 INFO L225 Difference]: With dead ends: 526 [2020-04-17 22:12:09,037 INFO L226 Difference]: Without dead ends: 286 [2020-04-17 22:12:09,038 INFO L678 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 [2020-04-17 22:12:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-04-17 22:12:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-04-17 22:12:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-04-17 22:12:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-04-17 22:12:09,048 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-04-17 22:12:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:09,048 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-04-17 22:12:09,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:12:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-04-17 22:12:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:12:09,050 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:09,050 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:09,050 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:09,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1152221153, now seen corresponding path program 1 times [2020-04-17 22:12:09,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:09,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905919005] [2020-04-17 22:12:09,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:09,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:09,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905919005] [2020-04-17 22:12:09,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:09,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:12:09,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559099619] [2020-04-17 22:12:09,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:12:09,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:12:09,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:12:09,094 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-04-17 22:12:09,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,122 INFO L93 Difference]: Finished difference Result 458 states and 1291 transitions. [2020-04-17 22:12:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:12:09,123 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-04-17 22:12:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,125 INFO L225 Difference]: With dead ends: 458 [2020-04-17 22:12:09,125 INFO L226 Difference]: Without dead ends: 250 [2020-04-17 22:12:09,125 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:12:09,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-04-17 22:12:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 226. [2020-04-17 22:12:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 22:12:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-04-17 22:12:09,134 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 14 [2020-04-17 22:12:09,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:09,134 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-04-17 22:12:09,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:12:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-04-17 22:12:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:12:09,135 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:09,135 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:09,136 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:09,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-04-17 22:12:09,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:09,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772571984] [2020-04-17 22:12:09,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:09,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772571984] [2020-04-17 22:12:09,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:09,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:12:09,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660060729] [2020-04-17 22:12:09,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:12:09,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:12:09,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:12:09,228 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 4 states. [2020-04-17 22:12:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,290 INFO L93 Difference]: Finished difference Result 287 states and 728 transitions. [2020-04-17 22:12:09,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:12:09,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-04-17 22:12:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,292 INFO L225 Difference]: With dead ends: 287 [2020-04-17 22:12:09,292 INFO L226 Difference]: Without dead ends: 206 [2020-04-17 22:12:09,293 INFO L678 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 [2020-04-17 22:12:09,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-04-17 22:12:09,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-04-17 22:12:09,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-04-17 22:12:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 530 transitions. [2020-04-17 22:12:09,300 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 530 transitions. Word has length 14 [2020-04-17 22:12:09,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:09,300 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 530 transitions. [2020-04-17 22:12:09,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:12:09,301 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 530 transitions. [2020-04-17 22:12:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 22:12:09,302 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:09,302 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:09,302 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:09,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-04-17 22:12:09,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:09,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058742608] [2020-04-17 22:12:09,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:09,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058742608] [2020-04-17 22:12:09,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:09,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:12:09,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275293969] [2020-04-17 22:12:09,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:12:09,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:12:09,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:12:09,410 INFO L87 Difference]: Start difference. First operand 206 states and 530 transitions. Second operand 5 states. [2020-04-17 22:12:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,472 INFO L93 Difference]: Finished difference Result 227 states and 530 transitions. [2020-04-17 22:12:09,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:12:09,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-17 22:12:09,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,474 INFO L225 Difference]: With dead ends: 227 [2020-04-17 22:12:09,474 INFO L226 Difference]: Without dead ends: 162 [2020-04-17 22:12:09,475 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:12:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-04-17 22:12:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-04-17 22:12:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-04-17 22:12:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-04-17 22:12:09,480 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 15 [2020-04-17 22:12:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:09,481 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-04-17 22:12:09,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:12:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-04-17 22:12:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:12:09,482 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:09,482 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:09,482 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:09,482 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-04-17 22:12:09,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:09,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269156844] [2020-04-17 22:12:09,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:09,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269156844] [2020-04-17 22:12:09,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:09,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:12:09,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985188327] [2020-04-17 22:12:09,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:12:09,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:12:09,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:12:09,629 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 6 states. [2020-04-17 22:12:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,708 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-04-17 22:12:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:12:09,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-04-17 22:12:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,710 INFO L225 Difference]: With dead ends: 158 [2020-04-17 22:12:09,710 INFO L226 Difference]: Without dead ends: 125 [2020-04-17 22:12:09,711 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:12:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-04-17 22:12:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-04-17 22:12:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-04-17 22:12:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-04-17 22:12:09,716 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-04-17 22:12:09,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:09,717 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-04-17 22:12:09,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:12:09,722 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-04-17 22:12:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:12:09,723 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:09,723 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:09,724 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:09,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:09,727 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-04-17 22:12:09,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:09,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234990551] [2020-04-17 22:12:09,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:09,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234990551] [2020-04-17 22:12:09,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:09,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 22:12:09,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341919829] [2020-04-17 22:12:09,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-17 22:12:09,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-17 22:12:09,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:12:09,848 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-04-17 22:12:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,923 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-04-17 22:12:09,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-17 22:12:09,924 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-04-17 22:12:09,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,924 INFO L225 Difference]: With dead ends: 120 [2020-04-17 22:12:09,924 INFO L226 Difference]: Without dead ends: 71 [2020-04-17 22:12:09,925 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-04-17 22:12:09,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-04-17 22:12:09,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-04-17 22:12:09,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-04-17 22:12:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-04-17 22:12:09,927 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-04-17 22:12:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:09,928 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-04-17 22:12:09,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-17 22:12:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-04-17 22:12:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-04-17 22:12:09,929 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:12:09,929 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:12:09,929 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:12:09,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:12:09,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-04-17 22:12:09,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:12:09,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229806000] [2020-04-17 22:12:09,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:12:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:12:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:12:09,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229806000] [2020-04-17 22:12:09,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:12:09,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:12:09,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608494591] [2020-04-17 22:12:09,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:12:09,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:12:09,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:12:09,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:12:09,985 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-04-17 22:12:09,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:12:09,997 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-04-17 22:12:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:12:09,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-04-17 22:12:09,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:12:09,999 INFO L225 Difference]: With dead ends: 70 [2020-04-17 22:12:09,999 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:12:09,999 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:12:10,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:12:10,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:12:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:12:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:12:10,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-04-17 22:12:10,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:12:10,001 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:12:10,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:12:10,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:12:10,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:12:10,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:12:10 BasicIcfg [2020-04-17 22:12:10,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:12:10,008 INFO L168 Benchmark]: Toolchain (without parser) took 5876.12 ms. Allocated memory was 145.8 MB in the beginning and 283.1 MB in the end (delta: 137.4 MB). Free memory was 102.1 MB in the beginning and 192.4 MB in the end (delta: -90.3 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,009 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.22 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 158.8 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.92 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,016 INFO L168 Benchmark]: Boogie Preprocessor took 27.33 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,017 INFO L168 Benchmark]: RCFGBuilder took 530.16 ms. Allocated memory is still 202.9 MB. Free memory was 154.8 MB in the beginning and 131.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,022 INFO L168 Benchmark]: TraceAbstraction took 4511.42 ms. Allocated memory was 202.9 MB in the beginning and 283.1 MB in the end (delta: 80.2 MB). Free memory was 130.3 MB in the beginning and 192.4 MB in the end (delta: -62.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-04-17 22:12:10,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.22 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 158.8 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.92 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.33 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 530.16 ms. Allocated memory is still 202.9 MB. Free memory was 154.8 MB in the beginning and 131.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4511.42 ms. Allocated memory was 202.9 MB in the beginning and 283.1 MB in the end (delta: 80.2 MB). Free memory was 130.3 MB in the beginning and 192.4 MB in the end (delta: -62.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 951 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 25 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 214 SDtfs, 237 SDslu, 324 SDs, 0 SdLazy, 185 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 5419 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...