/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-ext/16_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:40:57,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:40:57,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:40:57,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:40:57,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:40:57,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:40:57,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:40:57,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:40:57,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:40:57,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:40:57,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:40:57,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:40:57,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:40:57,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:40:57,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:40:57,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:40:57,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:40:57,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:40:57,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:40:57,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:40:57,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:40:57,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:40:57,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:40:57,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:40:57,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-04-18 07:40:57,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:40:57,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:40:57,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:40:57,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:40:57,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:40:57,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:40:57,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:40:57,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:40:57,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:40:57,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:40:57,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:40:57,814 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-McrStrategy.epf [2020-04-18 07:40:57,835 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:40:57,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:40:57,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:40:57,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:40:57,838 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:40:57,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:40:57,838 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:40:57,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:40:57,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:40:57,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:40:57,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:40:57,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:40:57,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:40:57,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:40:57,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:40:57,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:40:57,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:40:57,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:40:57,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:40:57,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:40:57,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:40:57,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:40:57,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:40:57,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:40:57,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:40:57,843 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 07:40:57,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:40:57,843 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 07:40:57,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:40:57,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:40:58,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:40:58,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:40:58,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:40:58,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:40:58,153 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:40:58,154 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i [2020-04-18 07:40:58,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e650fb73/a87492cd5b80420285a42229dd5d9957/FLAG21d2b79c8 [2020-04-18 07:40:58,826 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:40:58,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i [2020-04-18 07:40:58,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e650fb73/a87492cd5b80420285a42229dd5d9957/FLAG21d2b79c8 [2020-04-18 07:40:59,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e650fb73/a87492cd5b80420285a42229dd5d9957 [2020-04-18 07:40:59,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:40:59,120 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:40:59,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:40:59,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:40:59,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:40:59,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20298eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59, skipping insertion in model container [2020-04-18 07:40:59,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:40:59,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:40:59,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:40:59,645 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:40:59,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:40:59,770 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:40:59,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59 WrapperNode [2020-04-18 07:40:59,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:40:59,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:40:59,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:40:59,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:40:59,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:40:59,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:40:59,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:40:59,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:40:59,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (1/1) ... [2020-04-18 07:40:59,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:40:59,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:40:59,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:40:59,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:40:59,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (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 [2020-04-18 07:40:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 07:40:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 07:40:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:40:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:40:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:40:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:40:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:40:59,920 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:41:00,245 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:41:00,245 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 07:41:00,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:41:00 BoogieIcfgContainer [2020-04-18 07:41:00,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:41:00,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:41:00,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:41:00,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:41:00,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:40:59" (1/3) ... [2020-04-18 07:41:00,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c32355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:41:00, skipping insertion in model container [2020-04-18 07:41:00,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:40:59" (2/3) ... [2020-04-18 07:41:00,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c32355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:41:00, skipping insertion in model container [2020-04-18 07:41:00,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:41:00" (3/3) ... [2020-04-18 07:41:00,258 INFO L109 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2020-04-18 07:41:00,267 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:41:00,267 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:41:00,274 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 07:41:00,274 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:41:00,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,297 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,299 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,299 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:00,325 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:41:00,344 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:41:00,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:41:00,344 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:41:00,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:41:00,345 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:41:00,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:41:00,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:41:00,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:41:00,359 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 51 transitions, 107 flow [2020-04-18 07:41:00,362 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions, 107 flow [2020-04-18 07:41:00,396 INFO L129 PetriNetUnfolder]: 6/50 cut-off events. [2020-04-18 07:41:00,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 07:41:00,404 INFO L80 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2020-04-18 07:41:00,406 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions, 107 flow [2020-04-18 07:41:00,422 INFO L129 PetriNetUnfolder]: 6/50 cut-off events. [2020-04-18 07:41:00,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 07:41:00,423 INFO L80 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2020-04-18 07:41:00,425 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 07:41:00,426 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 07:41:01,506 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1287 [2020-04-18 07:41:01,507 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2020-04-18 07:41:01,511 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 22 transitions, 49 flow [2020-04-18 07:41:01,526 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 66 states. [2020-04-18 07:41:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-04-18 07:41:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 07:41:01,537 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:41:01,538 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 07:41:01,539 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:41:01,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:01,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1942834628, now seen corresponding path program 1 times [2020-04-18 07:41:01,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:41:01,554 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1173319854] [2020-04-18 07:41:01,575 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:01,590 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 07:41:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 07:41:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 07:41:01,593 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:41:01,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:01,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1942834628, now seen corresponding path program 2 times [2020-04-18 07:41:01,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:01,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512104578] [2020-04-18 07:41:01,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:01,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512104578] [2020-04-18 07:41:01,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:01,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:41:01,793 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:01,793 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:01,794 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 07:41:01,795 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:01,798 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:01,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 07:41:01,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 07:41:01,805 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 2 states. [2020-04-18 07:41:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:01,809 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 07:41:01,809 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 07:41:01,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:01,810 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1173319854] [2020-04-18 07:41:01,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:41:01,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:41:01,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1173319854] [2020-04-18 07:41:01,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 07:41:01,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:41:01,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 07:41:01,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 07:41:01,819 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2020-04-18 07:41:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:01,825 INFO L93 Difference]: Finished difference Result 66 states and 130 transitions. [2020-04-18 07:41:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 07:41:01,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-04-18 07:41:01,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:41:01,838 INFO L225 Difference]: With dead ends: 66 [2020-04-18 07:41:01,838 INFO L226 Difference]: Without dead ends: 62 [2020-04-18 07:41:01,840 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 07:41:01,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-04-18 07:41:01,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-04-18 07:41:01,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-04-18 07:41:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 122 transitions. [2020-04-18 07:41:01,886 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 122 transitions. Word has length 6 [2020-04-18 07:41:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:41:01,886 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 122 transitions. [2020-04-18 07:41:01,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 07:41:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 122 transitions. [2020-04-18 07:41:01,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:01,888 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:41:01,888 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:41:01,888 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:41:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:01,889 INFO L82 PathProgramCache]: Analyzing trace with hash 98318518, now seen corresponding path program 1 times [2020-04-18 07:41:01,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:41:01,889 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [22384643] [2020-04-18 07:41:01,890 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:01,890 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 07:41:01,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 07:41:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:01,891 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:41:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:01,892 INFO L82 PathProgramCache]: Analyzing trace with hash 98318518, now seen corresponding path program 2 times [2020-04-18 07:41:01,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:01,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362380682] [2020-04-18 07:41:01,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:01,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362380682] [2020-04-18 07:41:01,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:01,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:41:01,963 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:01,963 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:01,965 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 07:41:01,965 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:01,969 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:01,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:01,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:01,970 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 07:41:01,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:01,975 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 07:41:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 07:41:01,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:01,976 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [22384643] [2020-04-18 07:41:01,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:41:01,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:41:01,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [22384643] [2020-04-18 07:41:01,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:41:01,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:41:01,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:01,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:01,978 INFO L87 Difference]: Start difference. First operand 62 states and 122 transitions. Second operand 3 states. [2020-04-18 07:41:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,007 INFO L93 Difference]: Finished difference Result 66 states and 121 transitions. [2020-04-18 07:41:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:41:02,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 07:41:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:41:02,009 INFO L225 Difference]: With dead ends: 66 [2020-04-18 07:41:02,009 INFO L226 Difference]: Without dead ends: 56 [2020-04-18 07:41:02,011 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:02,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-04-18 07:41:02,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-04-18 07:41:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-18 07:41:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-18 07:41:02,020 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 7 [2020-04-18 07:41:02,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:41:02,021 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-18 07:41:02,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:41:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-18 07:41:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:02,022 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:41:02,022 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:41:02,022 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:41:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:02,023 INFO L82 PathProgramCache]: Analyzing trace with hash 114699826, now seen corresponding path program 1 times [2020-04-18 07:41:02,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:41:02,023 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [713735090] [2020-04-18 07:41:02,024 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:02,024 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 07:41:02,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 07:41:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:02,025 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:41:02,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 114699826, now seen corresponding path program 2 times [2020-04-18 07:41:02,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:02,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260639255] [2020-04-18 07:41:02,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:02,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260639255] [2020-04-18 07:41:02,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:02,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:41:02,077 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:02,077 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:02,078 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 07:41:02,079 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:02,084 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:02,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:02,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:02,085 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 07:41:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,088 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 07:41:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 07:41:02,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:02,090 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [713735090] [2020-04-18 07:41:02,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:41:02,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:41:02,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [713735090] [2020-04-18 07:41:02,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:41:02,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:41:02,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:02,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:02,092 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 3 states. [2020-04-18 07:41:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,117 INFO L93 Difference]: Finished difference Result 48 states and 85 transitions. [2020-04-18 07:41:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:41:02,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 07:41:02,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:41:02,120 INFO L225 Difference]: With dead ends: 48 [2020-04-18 07:41:02,120 INFO L226 Difference]: Without dead ends: 38 [2020-04-18 07:41:02,121 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:02,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-04-18 07:41:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-04-18 07:41:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-04-18 07:41:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 66 transitions. [2020-04-18 07:41:02,132 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 66 transitions. Word has length 7 [2020-04-18 07:41:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:41:02,133 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 66 transitions. [2020-04-18 07:41:02,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:41:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2020-04-18 07:41:02,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 07:41:02,134 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:41:02,134 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:41:02,134 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:41:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:02,135 INFO L82 PathProgramCache]: Analyzing trace with hash -480213144, now seen corresponding path program 1 times [2020-04-18 07:41:02,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:41:02,137 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1968634385] [2020-04-18 07:41:02,137 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:02,139 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-04-18 07:41:02,140 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 07:41:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 07:41:02,143 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:41:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:02,144 INFO L82 PathProgramCache]: Analyzing trace with hash -478521114, now seen corresponding path program 2 times [2020-04-18 07:41:02,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:02,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259349602] [2020-04-18 07:41:02,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:02,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259349602] [2020-04-18 07:41:02,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:02,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:41:02,244 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:02,250 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:02,252 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 36 transitions. [2020-04-18 07:41:02,252 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:02,299 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 07:41:02,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:41:02,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:41:02,300 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 7 states. [2020-04-18 07:41:02,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,330 INFO L93 Difference]: Finished difference Result 47 states and 73 transitions. [2020-04-18 07:41:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2020-04-18 07:41:02,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 07:41:02,331 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:41:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:02,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1657398414, now seen corresponding path program 3 times [2020-04-18 07:41:02,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:02,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507651439] [2020-04-18 07:41:02,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:02,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507651439] [2020-04-18 07:41:02,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:02,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:41:02,390 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:02,391 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:02,392 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-04-18 07:41:02,392 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:02,442 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 07:41:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:41:02,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-04-18 07:41:02,443 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. Second operand 5 states. [2020-04-18 07:41:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,460 INFO L93 Difference]: Finished difference Result 51 states and 75 transitions. [2020-04-18 07:41:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2020-04-18 07:41:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 07:41:02,461 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 07:41:02,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:02,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1657399704, now seen corresponding path program 4 times [2020-04-18 07:41:02,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:02,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257573442] [2020-04-18 07:41:02,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:02,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257573442] [2020-04-18 07:41:02,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:02,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:41:02,509 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:02,509 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:02,511 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions. [2020-04-18 07:41:02,512 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:02,521 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:02,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 07:41:02,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:41:02,522 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand 4 states. [2020-04-18 07:41:02,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,535 INFO L93 Difference]: Finished difference Result 67 states and 96 transitions. [2020-04-18 07:41:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions. [2020-04-18 07:41:02,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:02,536 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1968634385] [2020-04-18 07:41:02,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:41:02,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 07:41:02,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1968634385] [2020-04-18 07:41:02,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:41:02,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:41:02,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:41:02,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:41:02,538 INFO L87 Difference]: Start difference. First operand 38 states and 66 transitions. Second operand 11 states. [2020-04-18 07:41:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:02,765 INFO L93 Difference]: Finished difference Result 27 states and 49 transitions. [2020-04-18 07:41:02,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 07:41:02,766 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2020-04-18 07:41:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:41:02,766 INFO L225 Difference]: With dead ends: 27 [2020-04-18 07:41:02,767 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:41:02,767 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:41:02,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:41:02,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:41:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:41:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:41:02,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-04-18 07:41:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:41:02,768 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:41:02,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:41:02,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:41:02,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:02,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:41:02 BasicIcfg [2020-04-18 07:41:02,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:41:02,784 INFO L168 Benchmark]: Toolchain (without parser) took 3672.97 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 100.8 MB in the beginning and 178.4 MB in the end (delta: -77.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,785 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.66 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 162.3 MB in the end (delta: -63.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 202.4 MB. Free memory was 162.3 MB in the beginning and 160.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,787 INFO L168 Benchmark]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 202.4 MB. Free memory was 160.2 MB in the beginning and 158.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,788 INFO L168 Benchmark]: RCFGBuilder took 403.04 ms. Allocated memory is still 202.4 MB. Free memory was 158.9 MB in the beginning and 140.4 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,789 INFO L168 Benchmark]: TraceAbstraction took 2525.66 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 139.8 MB in the beginning and 178.4 MB in the end (delta: -38.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:02,793 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.66 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 162.3 MB in the end (delta: -63.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 202.4 MB. Free memory was 162.3 MB in the beginning and 160.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 202.4 MB. Free memory was 160.2 MB in the beginning and 158.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.04 ms. Allocated memory is still 202.4 MB. Free memory was 158.9 MB in the beginning and 140.4 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2525.66 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 139.8 MB in the beginning and 178.4 MB in the end (delta: -38.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 49 ProgramPointsBefore, 21 ProgramPointsAfterwards, 51 TransitionsBefore, 22 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 330 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 19 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1287 CheckedPairsTotal, 36 TotalNumberOfCompositions - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 81 SDtfs, 61 SDslu, 47 SDs, 0 SdLazy, 67 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...