/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-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:10:30,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:10:30,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:10:30,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:10:30,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:10:30,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:10:30,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:10:30,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:10:30,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:10:30,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:10:30,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:10:30,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:10:30,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:10:30,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:10:30,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:10:30,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:10:30,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:10:30,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:10:30,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:10:30,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:10:30,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:10:30,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:10:30,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:10:30,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:10:30,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:10:30,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:10:30,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:10:30,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:10:30,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:10:30,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:10:30,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:10:30,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:10:30,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:10:30,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:10:30,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:10:30,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:10:30,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:10:30,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:10:30,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:10:30,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:10:30,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:10:30,675 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-VariableLbe-McrStrategy.epf [2020-04-18 15:10:30,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:10:30,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:10:30,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:10:30,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:10:30,693 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:10:30,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:10:30,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:10:30,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:10:30,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:10:30,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:10:30,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:10:30,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:10:30,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:10:30,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:10:30,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:10:30,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:10:30,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:10:30,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:10:30,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:10:30,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:10:30,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:10:30,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:10:30,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:10:30,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:10:30,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:10:30,700 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:10:30,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:10:30,700 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:10:30,700 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:10:30,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:10:30,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:10:30,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:10:31,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:10:31,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:10:31,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:10:31,010 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:10:31,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2020-04-18 15:10:31,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a98858e/649181130b784290a146c483a0110285/FLAG05378504a [2020-04-18 15:10:31,704 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:10:31,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2020-04-18 15:10:31,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a98858e/649181130b784290a146c483a0110285/FLAG05378504a [2020-04-18 15:10:31,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a98858e/649181130b784290a146c483a0110285 [2020-04-18 15:10:31,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:10:32,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:10:32,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:10:32,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:10:32,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:10:32,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:10:31" (1/1) ... [2020-04-18 15:10:32,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dff61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32, skipping insertion in model container [2020-04-18 15:10:32,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:10:31" (1/1) ... [2020-04-18 15:10:32,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:10:32,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:10:32,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:10:32,632 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:10:32,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:10:32,751 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:10:32,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32 WrapperNode [2020-04-18 15:10:32,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:10:32,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:10:32,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:10:32,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:10:32,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:10:32,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:10:32,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:10:32,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:10:32,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (1/1) ... [2020-04-18 15:10:32,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:10:32,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:10:32,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:10:32,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:10:32,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (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 15:10:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:10:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:10:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:10:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:10:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:10:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:10:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:10:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:10:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:10:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:10:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:10:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:10:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:10:32,907 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 15:10:33,326 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:10:33,326 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:10:33,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:10:33 BoogieIcfgContainer [2020-04-18 15:10:33,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:10:33,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:10:33,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:10:33,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:10:33,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:10:31" (1/3) ... [2020-04-18 15:10:33,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666a6b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:10:33, skipping insertion in model container [2020-04-18 15:10:33,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:10:32" (2/3) ... [2020-04-18 15:10:33,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666a6b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:10:33, skipping insertion in model container [2020-04-18 15:10:33,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:10:33" (3/3) ... [2020-04-18 15:10:33,342 INFO L109 eAbstractionObserver]: Analyzing ICFG safe012_tso.opt.i [2020-04-18 15:10:33,352 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:10:33,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:10:33,360 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:10:33,361 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:10:33,393 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,394 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,394 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,394 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,396 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,396 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,398 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,398 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,398 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,399 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,399 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,400 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,401 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,408 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,408 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,408 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,409 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,424 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,424 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,424 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,425 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,432 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,432 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,432 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,433 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:10:33,445 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:10:33,461 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:10:33,462 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:10:33,462 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:10:33,462 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:10:33,462 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:10:33,462 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:10:33,462 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:10:33,463 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:10:33,478 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 15:10:33,480 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:10:33,530 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:10:33,531 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:10:33,536 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:10:33,538 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:10:33,558 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:10:33,558 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:10:33,559 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:10:33,561 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:10:33,562 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:10:34,797 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 15:10:34,914 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-04-18 15:10:34,915 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 15:10:34,919 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:10:34,948 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:10:34,951 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:10:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:10:34,960 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:34,961 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:34,961 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:34,968 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-04-18 15:10:34,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:34,976 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [191445524] [2020-04-18 15:10:34,996 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,014 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:10:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:10:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:10:35,017 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,018 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 2 times [2020-04-18 15:10:35,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:35,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159070288] [2020-04-18 15:10:35,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:35,326 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 15:10:35,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159070288] [2020-04-18 15:10:35,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:35,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:10:35,331 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:35,333 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,339 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:10:35,339 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:35,344 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:10:35,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:10:35,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:10:35,352 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:10:35,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:35,357 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:10:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:10:35,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:35,358 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [191445524] [2020-04-18 15:10:35,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:35,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:10:35,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [191445524] [2020-04-18 15:10:35,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:10:35,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:35,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:10:35,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:10:35,366 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:10:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:35,400 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:10:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:10:35,402 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:10:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:35,430 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:10:35,430 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:10:35,432 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 15:10:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:10:35,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:10:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:10:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:10:35,509 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:10:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:35,510 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:10:35,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:10:35,511 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:10:35,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:10:35,512 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:35,512 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:35,513 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,513 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-04-18 15:10:35,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:35,514 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [991675318] [2020-04-18 15:10:35,514 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,515 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:10:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:10:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:10:35,516 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,516 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 2 times [2020-04-18 15:10:35,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:35,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118913730] [2020-04-18 15:10:35,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:35,661 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 15:10:35,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118913730] [2020-04-18 15:10:35,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:35,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:10:35,664 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:35,665 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,666 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:10:35,668 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:35,679 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:10:35,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:10:35,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:10:35,680 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-04-18 15:10:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:35,697 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:10:35,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:10:35,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:35,698 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [991675318] [2020-04-18 15:10:35,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:35,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:10:35,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [991675318] [2020-04-18 15:10:35,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:10:35,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:35,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:10:35,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:10:35,701 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-04-18 15:10:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:35,732 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-04-18 15:10:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:10:35,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 15:10:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:35,740 INFO L225 Difference]: With dead ends: 330 [2020-04-18 15:10:35,740 INFO L226 Difference]: Without dead ends: 266 [2020-04-18 15:10:35,743 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:10:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-04-18 15:10:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-04-18 15:10:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-04-18 15:10:35,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-04-18 15:10:35,793 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-04-18 15:10:35,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:35,793 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-04-18 15:10:35,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:10:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-04-18 15:10:35,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:10:35,795 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:35,796 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:35,796 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-04-18 15:10:35,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:35,797 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1202555987] [2020-04-18 15:10:35,798 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,798 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-04-18 15:10:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 15:10:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:10:35,800 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:35,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 2 times [2020-04-18 15:10:35,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:35,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986203017] [2020-04-18 15:10:35,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:35,907 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 15:10:35,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986203017] [2020-04-18 15:10:35,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:35,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:10:35,908 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:35,909 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,911 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-04-18 15:10:35,911 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:35,921 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:10:35,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:10:35,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:10:35,922 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2020-04-18 15:10:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:35,932 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 15:10:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 15:10:35,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:35,933 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1202555987] [2020-04-18 15:10:35,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:35,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:10:35,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1202555987] [2020-04-18 15:10:35,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:10:35,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:35,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:10:35,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:10:35,937 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-04-18 15:10:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:35,961 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-04-18 15:10:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:10:35,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-18 15:10:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:35,968 INFO L225 Difference]: With dead ends: 290 [2020-04-18 15:10:35,968 INFO L226 Difference]: Without dead ends: 242 [2020-04-18 15:10:35,969 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:10:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-04-18 15:10:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-04-18 15:10:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-04-18 15:10:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-04-18 15:10:35,983 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-04-18 15:10:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:35,984 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-04-18 15:10:35,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:10:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-04-18 15:10:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:10:35,985 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:35,985 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:35,986 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:35,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-04-18 15:10:35,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:35,987 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1969653688] [2020-04-18 15:10:35,987 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:35,988 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 42 transitions. [2020-04-18 15:10:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:10:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:10:35,989 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:35,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:35,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 2 times [2020-04-18 15:10:35,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:35,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531282337] [2020-04-18 15:10:35,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:36,083 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 15:10:36,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531282337] [2020-04-18 15:10:36,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:36,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:36,085 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:36,087 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:36,088 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-04-18 15:10:36,089 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:36,148 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:10:36,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:10:36,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:10:36,149 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-04-18 15:10:36,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:36,178 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-04-18 15:10:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-04-18 15:10:36,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:36,179 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1969653688] [2020-04-18 15:10:36,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:36,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:10:36,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1969653688] [2020-04-18 15:10:36,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 15:10:36,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:36,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:10:36,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:10:36,181 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 6 states. [2020-04-18 15:10:36,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:36,215 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions. [2020-04-18 15:10:36,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:10:36,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 15:10:36,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:36,217 INFO L225 Difference]: With dead ends: 302 [2020-04-18 15:10:36,218 INFO L226 Difference]: Without dead ends: 140 [2020-04-18 15:10:36,218 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:10:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-18 15:10:36,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-18 15:10:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-18 15:10:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 354 transitions. [2020-04-18 15:10:36,229 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 354 transitions. Word has length 11 [2020-04-18 15:10:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:36,229 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 354 transitions. [2020-04-18 15:10:36,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 15:10:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 354 transitions. [2020-04-18 15:10:36,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:10:36,230 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:36,230 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:36,231 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:36,231 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 1 times [2020-04-18 15:10:36,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:36,232 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1553964669] [2020-04-18 15:10:36,232 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:36,233 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions. [2020-04-18 15:10:36,234 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 15:10:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:10:36,234 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:36,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:36,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1046934219, now seen corresponding path program 2 times [2020-04-18 15:10:36,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:36,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933014814] [2020-04-18 15:10:36,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:36,291 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 15:10:36,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933014814] [2020-04-18 15:10:36,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:36,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:36,293 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:36,294 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:36,296 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-04-18 15:10:36,296 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:36,369 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:10:36,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:36,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:10:36,370 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 7 states. [2020-04-18 15:10:36,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:36,421 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions. [2020-04-18 15:10:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-04-18 15:10:36,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:10:36,422 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:10:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:36,422 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 3 times [2020-04-18 15:10:36,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:36,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502345274] [2020-04-18 15:10:36,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:36,498 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 15:10:36,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502345274] [2020-04-18 15:10:36,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:36,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:36,499 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:36,500 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:36,501 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 15:10:36,501 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:36,537 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:10:36,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:10:36,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:10:36,538 INFO L87 Difference]: Start difference. First operand 39 states and 64 transitions. Second operand 5 states. [2020-04-18 15:10:36,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:36,566 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions. [2020-04-18 15:10:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-04-18 15:10:36,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:36,570 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1553964669] [2020-04-18 15:10:36,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:36,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:10:36,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1553964669] [2020-04-18 15:10:36,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 15:10:36,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:36,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:10:36,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:10:36,575 INFO L87 Difference]: Start difference. First operand 140 states and 354 transitions. Second operand 9 states. [2020-04-18 15:10:36,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:36,690 INFO L93 Difference]: Finished difference Result 176 states and 428 transitions. [2020-04-18 15:10:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 15:10:36,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-04-18 15:10:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:36,691 INFO L225 Difference]: With dead ends: 176 [2020-04-18 15:10:36,691 INFO L226 Difference]: Without dead ends: 80 [2020-04-18 15:10:36,691 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:10:36,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-04-18 15:10:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-04-18 15:10:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-04-18 15:10:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-04-18 15:10:36,695 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 12 [2020-04-18 15:10:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:36,696 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-04-18 15:10:36,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 15:10:36,696 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-04-18 15:10:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:10:36,696 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:36,697 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:36,697 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:36,697 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 1 times [2020-04-18 15:10:36,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:36,698 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1899159911] [2020-04-18 15:10:36,698 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:36,700 INFO L259 McrAutomatonBuilder]: Finished intersection with 90 states and 220 transitions. [2020-04-18 15:10:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-04-18 15:10:36,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:10:36,702 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:36,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:36,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1571173060, now seen corresponding path program 2 times [2020-04-18 15:10:36,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:36,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274049951] [2020-04-18 15:10:36,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:36,791 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 15:10:36,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274049951] [2020-04-18 15:10:36,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:36,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:36,792 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:36,793 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:36,800 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 103 transitions. [2020-04-18 15:10:36,801 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:36,880 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 15:10:36,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:36,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:10:36,881 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 7 states. [2020-04-18 15:10:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:36,937 INFO L93 Difference]: Finished difference Result 105 states and 242 transitions. [2020-04-18 15:10:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 242 transitions. [2020-04-18 15:10:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:10:36,938 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:10:36,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:36,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2138298948, now seen corresponding path program 3 times [2020-04-18 15:10:36,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:36,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62512154] [2020-04-18 15:10:36,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:37,014 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 15:10:37,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62512154] [2020-04-18 15:10:37,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:37,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:37,015 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:37,016 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:37,023 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 61 transitions. [2020-04-18 15:10:37,023 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:37,050 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:10:37,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:10:37,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:10:37,051 INFO L87 Difference]: Start difference. First operand 105 states and 242 transitions. Second operand 5 states. [2020-04-18 15:10:37,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:37,098 INFO L93 Difference]: Finished difference Result 131 states and 283 transitions. [2020-04-18 15:10:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 283 transitions. [2020-04-18 15:10:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:10:37,099 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:10:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:37,099 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 4 times [2020-04-18 15:10:37,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:37,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333554960] [2020-04-18 15:10:37,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:37,153 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 15:10:37,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333554960] [2020-04-18 15:10:37,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:37,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:37,155 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:37,156 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:37,160 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-04-18 15:10:37,160 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:37,192 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:10:37,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:10:37,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-04-18 15:10:37,193 INFO L87 Difference]: Start difference. First operand 131 states and 283 transitions. Second operand 4 states. [2020-04-18 15:10:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:37,207 INFO L93 Difference]: Finished difference Result 131 states and 283 transitions. [2020-04-18 15:10:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 283 transitions. [2020-04-18 15:10:37,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:37,209 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1899159911] [2020-04-18 15:10:37,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:37,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:10:37,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1899159911] [2020-04-18 15:10:37,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 15:10:37,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:37,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 15:10:37,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2020-04-18 15:10:37,210 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 11 states. [2020-04-18 15:10:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:37,489 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions. [2020-04-18 15:10:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 15:10:37,489 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 14 [2020-04-18 15:10:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:37,490 INFO L225 Difference]: With dead ends: 91 [2020-04-18 15:10:37,490 INFO L226 Difference]: Without dead ends: 69 [2020-04-18 15:10:37,491 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2020-04-18 15:10:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-04-18 15:10:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-04-18 15:10:37,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-04-18 15:10:37,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions. [2020-04-18 15:10:37,495 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14 [2020-04-18 15:10:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:37,495 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions. [2020-04-18 15:10:37,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 15:10:37,496 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2020-04-18 15:10:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:10:37,496 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:37,496 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:37,497 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:37,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash 822538733, now seen corresponding path program 1 times [2020-04-18 15:10:37,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:37,498 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [555683046] [2020-04-18 15:10:37,498 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:37,517 INFO L259 McrAutomatonBuilder]: Finished intersection with 118 states and 300 transitions. [2020-04-18 15:10:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-04-18 15:10:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:10:37,519 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:37,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1462039513, now seen corresponding path program 2 times [2020-04-18 15:10:37,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:37,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834730230] [2020-04-18 15:10:37,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:37,601 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 15:10:37,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834730230] [2020-04-18 15:10:37,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:37,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:37,602 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:37,603 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:37,606 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 60 transitions. [2020-04-18 15:10:37,607 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:37,658 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 15:10:37,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:37,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:10:37,659 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 7 states. [2020-04-18 15:10:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:37,702 INFO L93 Difference]: Finished difference Result 138 states and 331 transitions. [2020-04-18 15:10:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 331 transitions. [2020-04-18 15:10:37,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:10:37,704 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:10:37,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:37,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1862443039, now seen corresponding path program 3 times [2020-04-18 15:10:37,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:37,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514581050] [2020-04-18 15:10:37,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:37,747 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 15:10:37,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514581050] [2020-04-18 15:10:37,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:37,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:37,748 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:37,749 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:37,752 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-04-18 15:10:37,752 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:37,771 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:10:37,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:10:37,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:10:37,772 INFO L87 Difference]: Start difference. First operand 138 states and 331 transitions. Second operand 5 states. [2020-04-18 15:10:37,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:37,814 INFO L93 Difference]: Finished difference Result 190 states and 439 transitions. [2020-04-18 15:10:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 439 transitions. [2020-04-18 15:10:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:10:37,815 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:10:37,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:37,816 INFO L82 PathProgramCache]: Analyzing trace with hash 822538733, now seen corresponding path program 4 times [2020-04-18 15:10:37,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:37,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299994435] [2020-04-18 15:10:37,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:37,864 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 15:10:37,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299994435] [2020-04-18 15:10:37,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:37,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:10:37,865 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:37,866 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:37,869 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions. [2020-04-18 15:10:37,869 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:37,938 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:10:37,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:10:37,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:10:37,939 INFO L87 Difference]: Start difference. First operand 190 states and 439 transitions. Second operand 6 states. [2020-04-18 15:10:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:37,979 INFO L93 Difference]: Finished difference Result 190 states and 439 transitions. [2020-04-18 15:10:37,980 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 439 transitions. [2020-04-18 15:10:37,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:37,981 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [555683046] [2020-04-18 15:10:37,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:37,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:10:37,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [555683046] [2020-04-18 15:10:37,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 15:10:37,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:37,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 15:10:37,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-04-18 15:10:37,982 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 13 states. [2020-04-18 15:10:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:38,251 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-04-18 15:10:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 15:10:38,251 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-04-18 15:10:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:38,252 INFO L225 Difference]: With dead ends: 65 [2020-04-18 15:10:38,252 INFO L226 Difference]: Without dead ends: 50 [2020-04-18 15:10:38,253 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=213, Invalid=779, Unknown=0, NotChecked=0, Total=992 [2020-04-18 15:10:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-04-18 15:10:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-04-18 15:10:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-04-18 15:10:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-04-18 15:10:38,256 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15 [2020-04-18 15:10:38,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:38,256 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-04-18 15:10:38,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 15:10:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-04-18 15:10:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 15:10:38,257 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:38,257 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:38,257 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:38,257 INFO L82 PathProgramCache]: Analyzing trace with hash -246333940, now seen corresponding path program 1 times [2020-04-18 15:10:38,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:38,258 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1020310201] [2020-04-18 15:10:38,258 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:38,260 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 396 transitions. [2020-04-18 15:10:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-04-18 15:10:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 15:10:38,263 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:38,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:38,263 INFO L82 PathProgramCache]: Analyzing trace with hash -792798900, now seen corresponding path program 2 times [2020-04-18 15:10:38,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:38,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137854640] [2020-04-18 15:10:38,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:38,305 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 15:10:38,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137854640] [2020-04-18 15:10:38,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:38,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:38,306 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:38,307 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:38,310 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 53 transitions. [2020-04-18 15:10:38,311 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:38,357 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:10:38,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:38,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:10:38,357 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 7 states. [2020-04-18 15:10:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:38,415 INFO L93 Difference]: Finished difference Result 190 states and 478 transitions. [2020-04-18 15:10:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 478 transitions. [2020-04-18 15:10:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 15:10:38,417 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:10:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:38,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1760595468, now seen corresponding path program 3 times [2020-04-18 15:10:38,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:38,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581264552] [2020-04-18 15:10:38,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:38,477 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 15:10:38,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581264552] [2020-04-18 15:10:38,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:38,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:38,479 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:38,481 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:38,485 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 46 transitions. [2020-04-18 15:10:38,485 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:38,506 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:10:38,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:10:38,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:10:38,507 INFO L87 Difference]: Start difference. First operand 190 states and 478 transitions. Second operand 5 states. [2020-04-18 15:10:38,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:38,555 INFO L93 Difference]: Finished difference Result 274 states and 670 transitions. [2020-04-18 15:10:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 670 transitions. [2020-04-18 15:10:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 15:10:38,556 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:10:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash -246333940, now seen corresponding path program 4 times [2020-04-18 15:10:38,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:38,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746886137] [2020-04-18 15:10:38,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:38,643 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 15:10:38,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746886137] [2020-04-18 15:10:38,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:38,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 15:10:38,644 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:38,645 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:38,648 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 38 transitions. [2020-04-18 15:10:38,648 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:38,728 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:10:38,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:38,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2020-04-18 15:10:38,729 INFO L87 Difference]: Start difference. First operand 274 states and 670 transitions. Second operand 7 states. [2020-04-18 15:10:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:38,803 INFO L93 Difference]: Finished difference Result 274 states and 670 transitions. [2020-04-18 15:10:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 670 transitions. [2020-04-18 15:10:38,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:38,804 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1020310201] [2020-04-18 15:10:38,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:38,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 15:10:38,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1020310201] [2020-04-18 15:10:38,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-04-18 15:10:38,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:38,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 15:10:38,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2020-04-18 15:10:38,806 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 14 states. [2020-04-18 15:10:39,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:39,045 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-04-18 15:10:39,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 15:10:39,046 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2020-04-18 15:10:39,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:39,046 INFO L225 Difference]: With dead ends: 43 [2020-04-18 15:10:39,046 INFO L226 Difference]: Without dead ends: 37 [2020-04-18 15:10:39,047 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2020-04-18 15:10:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-04-18 15:10:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-04-18 15:10:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-04-18 15:10:39,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-04-18 15:10:39,053 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-04-18 15:10:39,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:39,053 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-04-18 15:10:39,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-04-18 15:10:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-04-18 15:10:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:10:39,054 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:10:39,054 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:10:39,054 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:10:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:39,055 INFO L82 PathProgramCache]: Analyzing trace with hash -570484421, now seen corresponding path program 1 times [2020-04-18 15:10:39,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:10:39,055 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [981546619] [2020-04-18 15:10:39,056 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:39,062 INFO L259 McrAutomatonBuilder]: Finished intersection with 298 states and 864 transitions. [2020-04-18 15:10:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 15:10:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:10:39,065 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:10:39,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:39,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1695335291, now seen corresponding path program 2 times [2020-04-18 15:10:39,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:39,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751273610] [2020-04-18 15:10:39,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:39,106 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 15:10:39,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751273610] [2020-04-18 15:10:39,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:39,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:39,108 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:39,109 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:39,114 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 79 transitions. [2020-04-18 15:10:39,114 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:39,165 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:10:39,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:39,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:10:39,166 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 7 states. [2020-04-18 15:10:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:39,213 INFO L93 Difference]: Finished difference Result 418 states and 1190 transitions. [2020-04-18 15:10:39,213 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1190 transitions. [2020-04-18 15:10:39,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:10:39,214 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:10:39,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:39,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1719345221, now seen corresponding path program 3 times [2020-04-18 15:10:39,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:39,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966032500] [2020-04-18 15:10:39,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:39,253 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 15:10:39,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966032500] [2020-04-18 15:10:39,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:39,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:10:39,254 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:39,255 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:39,259 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 53 transitions. [2020-04-18 15:10:39,259 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:39,282 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:10:39,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:10:39,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:10:39,283 INFO L87 Difference]: Start difference. First operand 418 states and 1190 transitions. Second operand 5 states. [2020-04-18 15:10:39,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:39,319 INFO L93 Difference]: Finished difference Result 658 states and 1788 transitions. [2020-04-18 15:10:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1788 transitions. [2020-04-18 15:10:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:10:39,321 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:10:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:39,322 INFO L82 PathProgramCache]: Analyzing trace with hash -284917317, now seen corresponding path program 4 times [2020-04-18 15:10:39,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:39,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308746424] [2020-04-18 15:10:39,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:39,376 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 15:10:39,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308746424] [2020-04-18 15:10:39,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:39,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:10:39,377 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:39,379 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:39,383 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 52 transitions. [2020-04-18 15:10:39,383 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:39,415 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:10:39,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:10:39,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-04-18 15:10:39,417 INFO L87 Difference]: Start difference. First operand 658 states and 1788 transitions. Second operand 5 states. [2020-04-18 15:10:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:39,483 INFO L93 Difference]: Finished difference Result 962 states and 2558 transitions. [2020-04-18 15:10:39,483 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 2558 transitions. [2020-04-18 15:10:39,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:10:39,488 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 15:10:39,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:10:39,489 INFO L82 PathProgramCache]: Analyzing trace with hash -503762501, now seen corresponding path program 5 times [2020-04-18 15:10:39,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:10:39,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152114107] [2020-04-18 15:10:39,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:10:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:10:39,575 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 15:10:39,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152114107] [2020-04-18 15:10:39,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:10:39,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 15:10:39,576 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:10:39,578 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:10:39,581 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 44 transitions. [2020-04-18 15:10:39,582 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:10:39,736 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:10:39,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:10:39,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2020-04-18 15:10:39,737 INFO L87 Difference]: Start difference. First operand 962 states and 2558 transitions. Second operand 7 states. [2020-04-18 15:10:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:39,884 INFO L93 Difference]: Finished difference Result 983 states and 2572 transitions. [2020-04-18 15:10:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 2572 transitions. [2020-04-18 15:10:39,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:39,888 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [981546619] [2020-04-18 15:10:39,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:10:39,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 15:10:39,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [981546619] [2020-04-18 15:10:39,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 15:10:39,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:10:39,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 15:10:39,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2020-04-18 15:10:39,891 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 16 states. [2020-04-18 15:10:40,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:10:40,211 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-04-18 15:10:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 15:10:40,212 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-04-18 15:10:40,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:10:40,212 INFO L225 Difference]: With dead ends: 36 [2020-04-18 15:10:40,212 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:10:40,213 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=303, Invalid=1419, Unknown=0, NotChecked=0, Total=1722 [2020-04-18 15:10:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:10:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:10:40,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:10:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:10:40,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-18 15:10:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:10:40,214 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:10:40,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 15:10:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:10:40,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:10:40,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:10:40 BasicIcfg [2020-04-18 15:10:40,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:10:40,220 INFO L168 Benchmark]: Toolchain (without parser) took 8237.84 ms. Allocated memory was 144.7 MB in the beginning and 318.8 MB in the end (delta: 174.1 MB). Free memory was 101.4 MB in the beginning and 197.7 MB in the end (delta: -96.3 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,221 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.64 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 156.6 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,222 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.17 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,222 INFO L168 Benchmark]: Boogie Preprocessor took 28.35 ms. Allocated memory is still 201.9 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,223 INFO L168 Benchmark]: RCFGBuilder took 495.30 ms. Allocated memory is still 201.9 MB. Free memory was 153.0 MB in the beginning and 130.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,224 INFO L168 Benchmark]: TraceAbstraction took 6884.96 ms. Allocated memory was 201.9 MB in the beginning and 318.8 MB in the end (delta: 116.9 MB). Free memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: -67.8 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:10:40,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.64 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 156.6 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.17 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.35 ms. Allocated memory is still 201.9 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 495.30 ms. Allocated memory is still 201.9 MB. Free memory was 153.0 MB in the beginning and 130.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6884.96 ms. Allocated memory was 201.9 MB in the beginning and 318.8 MB in the end (delta: 116.9 MB). Free memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: -67.8 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 678 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 183 SDtfs, 402 SDslu, 499 SDs, 0 SdLazy, 426 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 434 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...