/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:47:29,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:47:29,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:47:29,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:47:29,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:47:29,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:47:29,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:47:29,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:47:29,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:47:29,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:47:29,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:47:29,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:47:29,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:47:29,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:47:29,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:47:29,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:47:29,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:47:29,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:47:29,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:47:29,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:47:29,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:47:29,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:47:29,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:47:29,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:47:29,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:47:29,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:47:29,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:47:29,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:47:29,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:47:29,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:47:29,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:47:29,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:47:29,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:47:29,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:47:29,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:47:29,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:47:29,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:47:30,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:47:30,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:47:30,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:47:30,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:47:30,012 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:47:30,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:47:30,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:47:30,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:47:30,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:47:30,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:47:30,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:47:30,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:47:30,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:47:30,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:47:30,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:47:30,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:47:30,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:47:30,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:47:30,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:47:30,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:47:30,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:47:30,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:47:30,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:47:30,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:47:30,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:47:30,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:47:30,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:47:30,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:47:30,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:47:30,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:47:30,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:47:30,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:47:30,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:47:30,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:47:30,325 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:47:30,326 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-10-05 22:47:30,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0078accb/dfd816fca34c4811b6b8d7cb9fb6b9f7/FLAG3be3f939b [2020-10-05 22:47:30,915 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:47:30,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-10-05 22:47:30,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0078accb/dfd816fca34c4811b6b8d7cb9fb6b9f7/FLAG3be3f939b [2020-10-05 22:47:31,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0078accb/dfd816fca34c4811b6b8d7cb9fb6b9f7 [2020-10-05 22:47:31,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:47:31,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:47:31,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:47:31,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:47:31,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:47:31,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c33baf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31, skipping insertion in model container [2020-10-05 22:47:31,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:47:31,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:47:31,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:47:31,732 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:47:31,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:47:31,854 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:47:31,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31 WrapperNode [2020-10-05 22:47:31,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:47:31,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:47:31,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:47:31,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:47:31,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:47:31,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:47:31,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:47:31,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:47:31,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (1/1) ... [2020-10-05 22:47:31,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:47:31,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:47:31,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:47:31,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:47:31,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (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 [2020-10-05 22:47:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:47:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:47:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:47:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:47:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:47:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:47:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:47:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:47:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:47:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:47:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:47:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:47:31,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:47:31,999 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:47:32,379 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:47:32,379 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:47:32,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:47:32 BoogieIcfgContainer [2020-10-05 22:47:32,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:47:32,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:47:32,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:47:32,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:47:32,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:47:31" (1/3) ... [2020-10-05 22:47:32,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd627d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:47:32, skipping insertion in model container [2020-10-05 22:47:32,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:31" (2/3) ... [2020-10-05 22:47:32,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd627d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:47:32, skipping insertion in model container [2020-10-05 22:47:32,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:47:32" (3/3) ... [2020-10-05 22:47:32,390 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2020-10-05 22:47:32,400 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:47:32,400 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:47:32,408 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:47:32,409 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:47:32,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,448 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,448 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,451 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,451 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,454 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,454 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:32,481 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:47:32,499 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:47:32,499 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:47:32,499 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:47:32,499 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:47:32,499 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:47:32,499 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:47:32,500 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:47:32,500 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:47:32,514 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-05 22:47:32,520 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 22:47:32,564 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 22:47:32,565 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:47:32,570 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:47:32,573 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 22:47:32,594 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 22:47:32,594 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:47:32,595 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:47:32,597 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:47:32,598 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:47:34,145 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-10-05 22:47:34,146 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-10-05 22:47:34,150 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 22:47:34,174 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 22:47:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 22:47:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:47:34,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:34,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:34,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:34,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:34,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-05 22:47:34,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:34,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026491051] [2020-10-05 22:47:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:47:34,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026491051] [2020-10-05 22:47:34,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:34,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:47:34,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3670206] [2020-10-05 22:47:34,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:47:34,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:34,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:47:34,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:47:34,434 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 22:47:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:34,486 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 22:47:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:47:34,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:47:34,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:34,505 INFO L225 Difference]: With dead ends: 282 [2020-10-05 22:47:34,505 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 22:47:34,507 INFO L675 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 [2020-10-05 22:47:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 22:47:34,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 22:47:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 22:47:34,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 22:47:34,577 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 22:47:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:34,578 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 22:47:34,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:47:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 22:47:34,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:47:34,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:34,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:34,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:47:34,580 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:34,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-05 22:47:34,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:34,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544102079] [2020-10-05 22:47:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:47:34,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544102079] [2020-10-05 22:47:34,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:34,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:47:34,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689839436] [2020-10-05 22:47:34,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:34,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:34,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:34,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:34,653 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-05 22:47:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:34,706 INFO L93 Difference]: Finished difference Result 290 states and 762 transitions. [2020-10-05 22:47:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:47:34,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:47:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:34,708 INFO L225 Difference]: With dead ends: 290 [2020-10-05 22:47:34,708 INFO L226 Difference]: Without dead ends: 164 [2020-10-05 22:47:34,709 INFO L675 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 [2020-10-05 22:47:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-05 22:47:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-05 22:47:34,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-05 22:47:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 424 transitions. [2020-10-05 22:47:34,728 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 424 transitions. Word has length 9 [2020-10-05 22:47:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:34,729 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 424 transitions. [2020-10-05 22:47:34,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 424 transitions. [2020-10-05 22:47:34,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:47:34,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:34,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:34,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:47:34,732 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:34,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:34,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1379691760, now seen corresponding path program 1 times [2020-10-05 22:47:34,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:34,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704870723] [2020-10-05 22:47:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:47:34,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704870723] [2020-10-05 22:47:34,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:34,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:47:34,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097515537] [2020-10-05 22:47:34,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:34,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:34,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:34,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:34,826 INFO L87 Difference]: Start difference. First operand 164 states and 424 transitions. Second operand 4 states. [2020-10-05 22:47:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:34,857 INFO L93 Difference]: Finished difference Result 244 states and 582 transitions. [2020-10-05 22:47:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:47:34,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:47:34,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:34,858 INFO L225 Difference]: With dead ends: 244 [2020-10-05 22:47:34,859 INFO L226 Difference]: Without dead ends: 128 [2020-10-05 22:47:34,859 INFO L675 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 [2020-10-05 22:47:34,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-05 22:47:34,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2020-10-05 22:47:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-05 22:47:34,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 268 transitions. [2020-10-05 22:47:34,867 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 268 transitions. Word has length 11 [2020-10-05 22:47:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:34,868 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 268 transitions. [2020-10-05 22:47:34,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 268 transitions. [2020-10-05 22:47:34,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:47:34,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:34,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:34,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:47:34,869 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:34,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:34,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-10-05 22:47:34,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:34,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495298261] [2020-10-05 22:47:34,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:47:34,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495298261] [2020-10-05 22:47:34,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:34,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:47:34,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021023602] [2020-10-05 22:47:34,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:47:34,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:34,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:47:34,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:47:34,906 INFO L87 Difference]: Start difference. First operand 116 states and 268 transitions. Second operand 3 states. [2020-10-05 22:47:34,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:34,910 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-05 22:47:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:47:34,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:47:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:34,912 INFO L225 Difference]: With dead ends: 110 [2020-10-05 22:47:34,912 INFO L226 Difference]: Without dead ends: 110 [2020-10-05 22:47:34,913 INFO L675 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 [2020-10-05 22:47:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-05 22:47:34,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-05 22:47:34,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-05 22:47:34,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-05 22:47:34,919 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 11 [2020-10-05 22:47:34,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:34,919 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-05 22:47:34,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:47:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-05 22:47:34,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:47:34,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:34,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:34,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:47:34,921 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:34,922 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-10-05 22:47:34,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:34,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739152716] [2020-10-05 22:47:34,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:47:34,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739152716] [2020-10-05 22:47:34,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:34,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:47:34,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065715229] [2020-10-05 22:47:34,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:34,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:34,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:34,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:34,972 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 4 states. [2020-10-05 22:47:34,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:34,989 INFO L93 Difference]: Finished difference Result 112 states and 234 transitions. [2020-10-05 22:47:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:47:34,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:47:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:34,990 INFO L225 Difference]: With dead ends: 112 [2020-10-05 22:47:34,990 INFO L226 Difference]: Without dead ends: 46 [2020-10-05 22:47:34,990 INFO L675 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 [2020-10-05 22:47:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-05 22:47:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-05 22:47:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-05 22:47:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 84 transitions. [2020-10-05 22:47:35,009 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 84 transitions. Word has length 12 [2020-10-05 22:47:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:35,009 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 84 transitions. [2020-10-05 22:47:35,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:35,010 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 84 transitions. [2020-10-05 22:47:35,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:47:35,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:35,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:35,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:47:35,011 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:35,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:35,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 1 times [2020-10-05 22:47:35,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:35,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81920540] [2020-10-05 22:47:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:47:35,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81920540] [2020-10-05 22:47:35,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:35,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:47:35,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326633693] [2020-10-05 22:47:35,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:35,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:35,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:35,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:35,053 INFO L87 Difference]: Start difference. First operand 46 states and 84 transitions. Second operand 4 states. [2020-10-05 22:47:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:35,065 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-10-05 22:47:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:47:35,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 22:47:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:35,066 INFO L225 Difference]: With dead ends: 34 [2020-10-05 22:47:35,066 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:47:35,066 INFO L675 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 [2020-10-05 22:47:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:47:35,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:47:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:47:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:47:35,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-05 22:47:35,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:35,068 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:47:35,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:47:35,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:47:35,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:47:35,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:47:35 BasicIcfg [2020-10-05 22:47:35,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:47:35,075 INFO L168 Benchmark]: Toolchain (without parser) took 3861.42 ms. Allocated memory was 137.9 MB in the beginning and 251.1 MB in the end (delta: 113.2 MB). Free memory was 99.1 MB in the beginning and 207.4 MB in the end (delta: -108.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:35,076 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:47:35,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.69 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.9 MB in the beginning and 157.4 MB in the end (delta: -58.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:35,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 154.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:35,078 INFO L168 Benchmark]: Boogie Preprocessor took 26.31 ms. Allocated memory is still 200.3 MB. Free memory was 154.7 MB in the beginning and 153.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:35,079 INFO L168 Benchmark]: RCFGBuilder took 447.29 ms. Allocated memory is still 200.3 MB. Free memory was 153.4 MB in the beginning and 131.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:35,080 INFO L168 Benchmark]: TraceAbstraction took 2689.66 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 130.3 MB in the beginning and 207.4 MB in the end (delta: -77.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 22:47:35,084 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 641.69 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.9 MB in the beginning and 157.4 MB in the end (delta: -58.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 154.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.31 ms. Allocated memory is still 200.3 MB. Free memory was 154.7 MB in the beginning and 153.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.29 ms. Allocated memory is still 200.3 MB. Free memory was 153.4 MB in the beginning and 131.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2689.66 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 130.3 MB in the beginning and 207.4 MB in the end (delta: -77.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 105 SDtfs, 84 SDslu, 96 SDs, 0 SdLazy, 37 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...