/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 10:54:58,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 10:54:58,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 10:54:58,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 10:54:58,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 10:54:58,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 10:54:58,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 10:54:58,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 10:54:58,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 10:54:58,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 10:54:58,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 10:54:58,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 10:54:58,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 10:54:58,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 10:54:58,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 10:54:58,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 10:54:58,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 10:54:58,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 10:54:58,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 10:54:58,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 10:54:58,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 10:54:58,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 10:54:58,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 10:54:58,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 10:54:58,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 10:54:58,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 10:54:58,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 10:54:58,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 10:54:58,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 10:54:58,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 10:54:58,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 10:54:58,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 10:54:58,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 10:54:58,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 10:54:58,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 10:54:58,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 10:54:58,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 10:54:58,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 10:54:58,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 10:54:58,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 10:54:58,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 10:54:58,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 10:54:58,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 10:54:58,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 10:54:58,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 10:54:58,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 10:54:58,782 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 10:54:58,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 10:54:58,782 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 10:54:58,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 10:54:58,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 10:54:58,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 10:54:58,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 10:54:58,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 10:54:58,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 10:54:58,785 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 10:54:58,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 10:54:58,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 10:54:58,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 10:54:58,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 10:54:58,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 10:54:58,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 10:54:58,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 10:54:58,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 10:54:58,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 10:54:58,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 10:54:58,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 10:54:58,787 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 10:54:58,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 10:54:58,788 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 10:54:58,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 10:54:58,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 10:54:59,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 10:54:59,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 10:54:59,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 10:54:59,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 10:54:59,103 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 10:54:59,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2020-04-18 10:54:59,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e862f2ef/fde0f81ef0554c079cf74b745ac89f82/FLAG53d3199b2 [2020-04-18 10:54:59,744 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 10:54:59,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2020-04-18 10:54:59,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e862f2ef/fde0f81ef0554c079cf74b745ac89f82/FLAG53d3199b2 [2020-04-18 10:55:00,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e862f2ef/fde0f81ef0554c079cf74b745ac89f82 [2020-04-18 10:55:00,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 10:55:00,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 10:55:00,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 10:55:00,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 10:55:00,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 10:55:00,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247da443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00, skipping insertion in model container [2020-04-18 10:55:00,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 10:55:00,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 10:55:00,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 10:55:00,622 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 10:55:00,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 10:55:00,773 INFO L208 MainTranslator]: Completed translation [2020-04-18 10:55:00,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00 WrapperNode [2020-04-18 10:55:00,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 10:55:00,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 10:55:00,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 10:55:00,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 10:55:00,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 10:55:00,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 10:55:00,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 10:55:00,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 10:55:00,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (1/1) ... [2020-04-18 10:55:00,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 10:55:00,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 10:55:00,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 10:55:00,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 10:55:00,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (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 10:55:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 10:55:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 10:55:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 10:55:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 10:55:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 10:55:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 10:55:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 10:55:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 10:55:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 10:55:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 10:55:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 10:55:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 10:55:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 10:55:00,929 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 10:55:01,329 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 10:55:01,329 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 10:55:01,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 10:55:01 BoogieIcfgContainer [2020-04-18 10:55:01,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 10:55:01,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 10:55:01,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 10:55:01,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 10:55:01,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 10:55:00" (1/3) ... [2020-04-18 10:55:01,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87b113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 10:55:01, skipping insertion in model container [2020-04-18 10:55:01,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:00" (2/3) ... [2020-04-18 10:55:01,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87b113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 10:55:01, skipping insertion in model container [2020-04-18 10:55:01,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 10:55:01" (3/3) ... [2020-04-18 10:55:01,343 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2020-04-18 10:55:01,353 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 10:55:01,354 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 10:55:01,362 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 10:55:01,363 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 10:55:01,390 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,391 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,393 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,394 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,394 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,394 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,395 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,396 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,396 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,396 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,397 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,398 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,399 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,399 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,399 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,407 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,407 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,407 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,408 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,426 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,427 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,428 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,428 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,438 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,438 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,438 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:01,455 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 10:55:01,473 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 10:55:01,474 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 10:55:01,474 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 10:55:01,474 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 10:55:01,474 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 10:55:01,474 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 10:55:01,475 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 10:55:01,475 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 10:55:01,491 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-18 10:55:01,493 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 10:55:01,538 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 10:55:01,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 10:55:01,543 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 10:55:01,546 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 10:55:01,572 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 10:55:01,573 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 10:55:01,574 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 10:55:01,578 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 10:55:01,579 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 10:55:03,435 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 10:55:03,492 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-18 10:55:03,492 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-18 10:55:03,496 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-18 10:55:03,522 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-18 10:55:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 10:55:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 10:55:03,533 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:03,533 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:03,534 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:03,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-18 10:55:03,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:03,548 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2047272007] [2020-04-18 10:55:03,565 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:03,578 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 10:55:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 10:55:03,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 10:55:03,580 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:03,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:03,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 2 times [2020-04-18 10:55:03,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:03,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935662690] [2020-04-18 10:55:03,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:03,884 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 10:55:03,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935662690] [2020-04-18 10:55:03,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:03,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 10:55:03,887 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:03,888 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:03,891 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 10:55:03,891 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:03,899 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:03,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 10:55:03,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 10:55:03,905 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-04-18 10:55:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:03,909 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 10:55:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 10:55:03,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:03,910 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2047272007] [2020-04-18 10:55:03,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:03,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 10:55:03,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2047272007] [2020-04-18 10:55:03,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 10:55:03,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:03,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 10:55:03,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 10:55:03,918 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 10:55:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:03,957 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-18 10:55:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 10:55:03,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 10:55:03,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:03,974 INFO L225 Difference]: With dead ends: 282 [2020-04-18 10:55:03,975 INFO L226 Difference]: Without dead ends: 218 [2020-04-18 10:55:03,976 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 10:55:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-18 10:55:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-18 10:55:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-18 10:55:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-18 10:55:04,044 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-18 10:55:04,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:04,045 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-18 10:55:04,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 10:55:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-18 10:55:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 10:55:04,047 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:04,047 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:04,047 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:04,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-04-18 10:55:04,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:04,048 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1360363519] [2020-04-18 10:55:04,049 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,050 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-04-18 10:55:04,050 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 10:55:04,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 10:55:04,051 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:04,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 2 times [2020-04-18 10:55:04,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700963071] [2020-04-18 10:55:04,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:04,107 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 10:55:04,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700963071] [2020-04-18 10:55:04,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:04,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:04,108 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:04,109 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,111 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-04-18 10:55:04,111 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:04,120 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:04,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:04,121 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-04-18 10:55:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,162 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2020-04-18 10:55:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-04-18 10:55:04,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:04,163 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1360363519] [2020-04-18 10:55:04,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:04,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:04,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1360363519] [2020-04-18 10:55:04,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 10:55:04,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:04,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 10:55:04,168 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-04-18 10:55:04,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,198 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-04-18 10:55:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 10:55:04,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 10:55:04,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:04,200 INFO L225 Difference]: With dead ends: 242 [2020-04-18 10:55:04,200 INFO L226 Difference]: Without dead ends: 116 [2020-04-18 10:55:04,202 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 10:55:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-04-18 10:55:04,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-04-18 10:55:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-04-18 10:55:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 284 transitions. [2020-04-18 10:55:04,226 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 284 transitions. Word has length 9 [2020-04-18 10:55:04,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:04,226 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 284 transitions. [2020-04-18 10:55:04,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 10:55:04,227 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-04-18 10:55:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 10:55:04,228 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:04,228 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:04,228 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:04,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-04-18 10:55:04,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:04,229 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1353252075] [2020-04-18 10:55:04,230 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,230 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 47 transitions. [2020-04-18 10:55:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-04-18 10:55:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 10:55:04,231 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1111108671, now seen corresponding path program 2 times [2020-04-18 10:55:04,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778576480] [2020-04-18 10:55:04,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:04,306 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 10:55:04,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778576480] [2020-04-18 10:55:04,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:04,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:04,307 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:04,308 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,310 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 32 transitions. [2020-04-18 10:55:04,310 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:04,319 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:04,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:04,320 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-04-18 10:55:04,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,341 INFO L93 Difference]: Finished difference Result 31 states and 49 transitions. [2020-04-18 10:55:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-04-18 10:55:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 10:55:04,355 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:04,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 3 times [2020-04-18 10:55:04,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264162523] [2020-04-18 10:55:04,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:04,411 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 10:55:04,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264162523] [2020-04-18 10:55:04,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:04,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:04,413 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:04,414 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,416 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-04-18 10:55:04,416 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:04,432 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:04,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:04,433 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 4 states. [2020-04-18 10:55:04,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,443 INFO L93 Difference]: Finished difference Result 31 states and 49 transitions. [2020-04-18 10:55:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-04-18 10:55:04,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:04,444 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1353252075] [2020-04-18 10:55:04,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:04,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:04,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1353252075] [2020-04-18 10:55:04,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 10:55:04,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:04,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 10:55:04,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-04-18 10:55:04,446 INFO L87 Difference]: Start difference. First operand 116 states and 284 transitions. Second operand 6 states. [2020-04-18 10:55:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,527 INFO L93 Difference]: Finished difference Result 164 states and 394 transitions. [2020-04-18 10:55:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 10:55:04,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 10:55:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:04,529 INFO L225 Difference]: With dead ends: 164 [2020-04-18 10:55:04,529 INFO L226 Difference]: Without dead ends: 92 [2020-04-18 10:55:04,530 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 10:55:04,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-04-18 10:55:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-04-18 10:55:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-04-18 10:55:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 214 transitions. [2020-04-18 10:55:04,537 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 214 transitions. Word has length 11 [2020-04-18 10:55:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:04,537 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 214 transitions. [2020-04-18 10:55:04,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 10:55:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 214 transitions. [2020-04-18 10:55:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:04,538 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:04,538 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:04,539 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:04,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,539 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-04-18 10:55:04,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:04,540 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2138755237] [2020-04-18 10:55:04,540 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,541 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 108 transitions. [2020-04-18 10:55:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-04-18 10:55:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:04,543 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:04,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,543 INFO L82 PathProgramCache]: Analyzing trace with hash -52006802, now seen corresponding path program 2 times [2020-04-18 10:55:04,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115840240] [2020-04-18 10:55:04,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:04,590 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 10:55:04,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115840240] [2020-04-18 10:55:04,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:04,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:04,592 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:04,593 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,596 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 50 transitions. [2020-04-18 10:55:04,597 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:04,605 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 10:55:04,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:04,606 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2020-04-18 10:55:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,622 INFO L93 Difference]: Finished difference Result 68 states and 135 transitions. [2020-04-18 10:55:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 135 transitions. [2020-04-18 10:55:04,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:04,623 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,623 INFO L82 PathProgramCache]: Analyzing trace with hash 84630628, now seen corresponding path program 3 times [2020-04-18 10:55:04,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125120824] [2020-04-18 10:55:04,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:04,702 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 10:55:04,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125120824] [2020-04-18 10:55:04,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:04,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:04,703 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:04,708 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,712 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-04-18 10:55:04,712 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:04,735 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:04,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:04,736 INFO L87 Difference]: Start difference. First operand 68 states and 135 transitions. Second operand 4 states. [2020-04-18 10:55:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,750 INFO L93 Difference]: Finished difference Result 77 states and 144 transitions. [2020-04-18 10:55:04,750 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 144 transitions. [2020-04-18 10:55:04,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:04,751 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:04,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,751 INFO L82 PathProgramCache]: Analyzing trace with hash -202910876, now seen corresponding path program 4 times [2020-04-18 10:55:04,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244222164] [2020-04-18 10:55:04,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:04,785 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 10:55:04,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244222164] [2020-04-18 10:55:04,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:04,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:04,786 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:04,787 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,789 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 10:55:04,790 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:04,811 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:04,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:04,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 10:55:04,812 INFO L87 Difference]: Start difference. First operand 77 states and 144 transitions. Second operand 4 states. [2020-04-18 10:55:04,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,828 INFO L93 Difference]: Finished difference Result 82 states and 148 transitions. [2020-04-18 10:55:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 148 transitions. [2020-04-18 10:55:04,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:04,829 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2138755237] [2020-04-18 10:55:04,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:04,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 10:55:04,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2138755237] [2020-04-18 10:55:04,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 10:55:04,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:04,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 10:55:04,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 10:55:04,831 INFO L87 Difference]: Start difference. First operand 92 states and 214 transitions. Second operand 8 states. [2020-04-18 10:55:04,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:04,955 INFO L93 Difference]: Finished difference Result 122 states and 275 transitions. [2020-04-18 10:55:04,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 10:55:04,956 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-04-18 10:55:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:04,957 INFO L225 Difference]: With dead ends: 122 [2020-04-18 10:55:04,957 INFO L226 Difference]: Without dead ends: 68 [2020-04-18 10:55:04,958 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-04-18 10:55:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-04-18 10:55:04,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-04-18 10:55:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-04-18 10:55:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-04-18 10:55:04,963 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-04-18 10:55:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:04,964 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-04-18 10:55:04,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 10:55:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-04-18 10:55:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:04,965 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:04,965 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:04,965 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-04-18 10:55:04,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:04,966 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1748687494] [2020-04-18 10:55:04,967 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:04,968 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 169 transitions. [2020-04-18 10:55:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 10:55:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:04,970 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:04,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:04,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1612262128, now seen corresponding path program 2 times [2020-04-18 10:55:04,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:04,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839178731] [2020-04-18 10:55:04,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:05,003 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 10:55:05,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839178731] [2020-04-18 10:55:05,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:05,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:05,004 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:05,005 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,010 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 63 transitions. [2020-04-18 10:55:05,010 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:05,020 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 10:55:05,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:05,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:05,021 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-04-18 10:55:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,039 INFO L93 Difference]: Finished difference Result 108 states and 241 transitions. [2020-04-18 10:55:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 241 transitions. [2020-04-18 10:55:05,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:05,040 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:05,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1648184308, now seen corresponding path program 3 times [2020-04-18 10:55:05,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:05,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633968501] [2020-04-18 10:55:05,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:05,073 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 10:55:05,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633968501] [2020-04-18 10:55:05,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:05,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:05,074 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:05,076 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,080 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 68 transitions. [2020-04-18 10:55:05,080 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:05,096 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:05,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:05,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:05,097 INFO L87 Difference]: Start difference. First operand 108 states and 241 transitions. Second operand 4 states. [2020-04-18 10:55:05,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,110 INFO L93 Difference]: Finished difference Result 123 states and 260 transitions. [2020-04-18 10:55:05,110 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 260 transitions. [2020-04-18 10:55:05,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:05,111 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:05,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 4 times [2020-04-18 10:55:05,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:05,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112977677] [2020-04-18 10:55:05,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:05,173 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 10:55:05,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112977677] [2020-04-18 10:55:05,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:05,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:05,174 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:05,175 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,178 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-04-18 10:55:05,178 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:05,209 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 10:55:05,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:05,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 10:55:05,210 INFO L87 Difference]: Start difference. First operand 123 states and 260 transitions. Second operand 4 states. [2020-04-18 10:55:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,225 INFO L93 Difference]: Finished difference Result 123 states and 260 transitions. [2020-04-18 10:55:05,225 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 260 transitions. [2020-04-18 10:55:05,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:05,226 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1748687494] [2020-04-18 10:55:05,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:05,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:05,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1748687494] [2020-04-18 10:55:05,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 10:55:05,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:05,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 10:55:05,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 10:55:05,228 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 8 states. [2020-04-18 10:55:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,430 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-04-18 10:55:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 10:55:05,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-04-18 10:55:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:05,432 INFO L225 Difference]: With dead ends: 81 [2020-04-18 10:55:05,432 INFO L226 Difference]: Without dead ends: 59 [2020-04-18 10:55:05,432 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-04-18 10:55:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-04-18 10:55:05,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-04-18 10:55:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-04-18 10:55:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-04-18 10:55:05,436 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-04-18 10:55:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:05,437 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-04-18 10:55:05,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 10:55:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-04-18 10:55:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:05,438 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:05,438 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:05,438 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,438 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-04-18 10:55:05,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:05,439 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2064219467] [2020-04-18 10:55:05,440 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,441 INFO L259 McrAutomatonBuilder]: Finished intersection with 94 states and 230 transitions. [2020-04-18 10:55:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-04-18 10:55:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:05,442 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1559482212, now seen corresponding path program 2 times [2020-04-18 10:55:05,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:05,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957728839] [2020-04-18 10:55:05,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:05,486 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 10:55:05,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957728839] [2020-04-18 10:55:05,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:05,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:05,488 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:05,489 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,492 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 50 transitions. [2020-04-18 10:55:05,492 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:05,501 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 10:55:05,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:05,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:05,502 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 4 states. [2020-04-18 10:55:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,519 INFO L93 Difference]: Finished difference Result 148 states and 347 transitions. [2020-04-18 10:55:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 347 transitions. [2020-04-18 10:55:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:05,520 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,521 INFO L82 PathProgramCache]: Analyzing trace with hash 459790692, now seen corresponding path program 3 times [2020-04-18 10:55:05,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:05,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474280653] [2020-04-18 10:55:05,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:05,554 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 10:55:05,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474280653] [2020-04-18 10:55:05,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:05,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:05,555 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:05,556 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,560 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 78 transitions. [2020-04-18 10:55:05,560 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:05,572 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:05,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:05,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:05,573 INFO L87 Difference]: Start difference. First operand 148 states and 347 transitions. Second operand 4 states. [2020-04-18 10:55:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,587 INFO L93 Difference]: Finished difference Result 169 states and 376 transitions. [2020-04-18 10:55:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 376 transitions. [2020-04-18 10:55:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:05,588 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:05,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,589 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 4 times [2020-04-18 10:55:05,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:05,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427601402] [2020-04-18 10:55:05,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:05,637 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 10:55:05,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427601402] [2020-04-18 10:55:05,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:05,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:05,638 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:05,639 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,642 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-04-18 10:55:05,642 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:05,735 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 10:55:05,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 10:55:05,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-04-18 10:55:05,736 INFO L87 Difference]: Start difference. First operand 169 states and 376 transitions. Second operand 6 states. [2020-04-18 10:55:05,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,776 INFO L93 Difference]: Finished difference Result 169 states and 376 transitions. [2020-04-18 10:55:05,777 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 376 transitions. [2020-04-18 10:55:05,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:05,778 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2064219467] [2020-04-18 10:55:05,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:05,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 10:55:05,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2064219467] [2020-04-18 10:55:05,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 10:55:05,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:05,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 10:55:05,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-04-18 10:55:05,779 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 10 states. [2020-04-18 10:55:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:05,950 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-04-18 10:55:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 10:55:05,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-04-18 10:55:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:05,952 INFO L225 Difference]: With dead ends: 60 [2020-04-18 10:55:05,952 INFO L226 Difference]: Without dead ends: 45 [2020-04-18 10:55:05,953 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2020-04-18 10:55:05,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-04-18 10:55:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-04-18 10:55:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-04-18 10:55:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-04-18 10:55:05,957 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-04-18 10:55:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:05,958 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-04-18 10:55:05,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 10:55:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-04-18 10:55:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:05,959 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:05,959 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:05,959 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:05,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,960 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-04-18 10:55:05,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:05,960 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [90980818] [2020-04-18 10:55:05,962 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:05,966 INFO L259 McrAutomatonBuilder]: Finished intersection with 118 states and 300 transitions. [2020-04-18 10:55:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-04-18 10:55:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:05,969 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:05,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:05,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1150340927, now seen corresponding path program 2 times [2020-04-18 10:55:05,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:05,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220822050] [2020-04-18 10:55:05,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:06,009 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 10:55:06,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220822050] [2020-04-18 10:55:06,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:06,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:06,010 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:06,012 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,014 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 43 transitions. [2020-04-18 10:55:06,015 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:06,025 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 10:55:06,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:06,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:06,027 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2020-04-18 10:55:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,045 INFO L93 Difference]: Finished difference Result 196 states and 481 transitions. [2020-04-18 10:55:06,046 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 481 transitions. [2020-04-18 10:55:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:06,047 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:06,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1368613075, now seen corresponding path program 3 times [2020-04-18 10:55:06,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:06,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644996146] [2020-04-18 10:55:06,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:06,104 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 10:55:06,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644996146] [2020-04-18 10:55:06,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:06,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:06,105 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:06,107 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,111 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 68 transitions. [2020-04-18 10:55:06,111 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:06,127 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:06,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:06,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:06,128 INFO L87 Difference]: Start difference. First operand 196 states and 481 transitions. Second operand 4 states. [2020-04-18 10:55:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,141 INFO L93 Difference]: Finished difference Result 238 states and 560 transitions. [2020-04-18 10:55:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 560 transitions. [2020-04-18 10:55:06,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:06,143 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:06,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,144 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 4 times [2020-04-18 10:55:06,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:06,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225519078] [2020-04-18 10:55:06,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:06,238 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 10:55:06,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225519078] [2020-04-18 10:55:06,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:06,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 10:55:06,240 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:06,241 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,245 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-04-18 10:55:06,246 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:06,332 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 10:55:06,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 10:55:06,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-04-18 10:55:06,333 INFO L87 Difference]: Start difference. First operand 238 states and 560 transitions. Second operand 7 states. [2020-04-18 10:55:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,448 INFO L93 Difference]: Finished difference Result 238 states and 560 transitions. [2020-04-18 10:55:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 560 transitions. [2020-04-18 10:55:06,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:06,450 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [90980818] [2020-04-18 10:55:06,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:06,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 10:55:06,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [90980818] [2020-04-18 10:55:06,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 10:55:06,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:06,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 10:55:06,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-04-18 10:55:06,451 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 11 states. [2020-04-18 10:55:06,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,609 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-04-18 10:55:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 10:55:06,609 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-04-18 10:55:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:06,610 INFO L225 Difference]: With dead ends: 42 [2020-04-18 10:55:06,610 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 10:55:06,610 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2020-04-18 10:55:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 10:55:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 10:55:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 10:55:06,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-04-18 10:55:06,613 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-04-18 10:55:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:06,613 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-04-18 10:55:06,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 10:55:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-04-18 10:55:06,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:06,614 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:06,614 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:06,614 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:06,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,614 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-04-18 10:55:06,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:06,615 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1877251042] [2020-04-18 10:55:06,616 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,619 INFO L259 McrAutomatonBuilder]: Finished intersection with 234 states and 656 transitions. [2020-04-18 10:55:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-04-18 10:55:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:06,622 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,623 INFO L82 PathProgramCache]: Analyzing trace with hash 219391538, now seen corresponding path program 2 times [2020-04-18 10:55:06,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:06,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35252932] [2020-04-18 10:55:06,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:06,652 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 10:55:06,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35252932] [2020-04-18 10:55:06,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:06,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:06,653 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:06,654 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,658 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 66 transitions. [2020-04-18 10:55:06,658 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:06,666 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 10:55:06,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:06,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:06,667 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 4 states. [2020-04-18 10:55:06,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,705 INFO L93 Difference]: Finished difference Result 390 states and 1057 transitions. [2020-04-18 10:55:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 1057 transitions. [2020-04-18 10:55:06,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:06,707 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:06,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,707 INFO L82 PathProgramCache]: Analyzing trace with hash 437663686, now seen corresponding path program 3 times [2020-04-18 10:55:06,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:06,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267837132] [2020-04-18 10:55:06,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:06,766 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 10:55:06,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267837132] [2020-04-18 10:55:06,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:06,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:06,767 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:06,768 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,773 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-04-18 10:55:06,773 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:06,785 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:06,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:06,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:06,786 INFO L87 Difference]: Start difference. First operand 390 states and 1057 transitions. Second operand 4 states. [2020-04-18 10:55:06,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,801 INFO L93 Difference]: Finished difference Result 516 states and 1378 transitions. [2020-04-18 10:55:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1378 transitions. [2020-04-18 10:55:06,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:06,803 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:06,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,804 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 4 times [2020-04-18 10:55:06,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:06,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221106952] [2020-04-18 10:55:06,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:06,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221106952] [2020-04-18 10:55:06,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:06,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:06,846 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:06,848 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:06,853 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-04-18 10:55:06,853 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:06,898 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 10:55:06,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 10:55:06,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-04-18 10:55:06,899 INFO L87 Difference]: Start difference. First operand 516 states and 1378 transitions. Second operand 5 states. [2020-04-18 10:55:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:06,942 INFO L93 Difference]: Finished difference Result 758 states and 1889 transitions. [2020-04-18 10:55:06,942 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1889 transitions. [2020-04-18 10:55:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:06,945 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 10:55:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:06,945 INFO L82 PathProgramCache]: Analyzing trace with hash -410995550, now seen corresponding path program 5 times [2020-04-18 10:55:06,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:06,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639563565] [2020-04-18 10:55:06,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:07,009 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 10:55:07,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639563565] [2020-04-18 10:55:07,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:07,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 10:55:07,010 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:07,012 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:07,015 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 39 transitions. [2020-04-18 10:55:07,015 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:07,105 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 10:55:07,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 10:55:07,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-04-18 10:55:07,106 INFO L87 Difference]: Start difference. First operand 758 states and 1889 transitions. Second operand 7 states. [2020-04-18 10:55:07,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:07,241 INFO L93 Difference]: Finished difference Result 774 states and 1897 transitions. [2020-04-18 10:55:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1897 transitions. [2020-04-18 10:55:07,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:07,243 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 10:55:07,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:07,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1161565432, now seen corresponding path program 6 times [2020-04-18 10:55:07,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:07,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411966904] [2020-04-18 10:55:07,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:07,284 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 10:55:07,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411966904] [2020-04-18 10:55:07,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:07,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:07,285 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:07,286 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:07,289 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 34 transitions. [2020-04-18 10:55:07,289 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:07,328 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:07,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:07,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2020-04-18 10:55:07,329 INFO L87 Difference]: Start difference. First operand 774 states and 1897 transitions. Second operand 4 states. [2020-04-18 10:55:07,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:07,356 INFO L93 Difference]: Finished difference Result 1028 states and 2447 transitions. [2020-04-18 10:55:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 2447 transitions. [2020-04-18 10:55:07,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:07,359 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1877251042] [2020-04-18 10:55:07,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:07,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:07,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1877251042] [2020-04-18 10:55:07,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 10:55:07,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:07,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 10:55:07,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2020-04-18 10:55:07,360 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 16 states. [2020-04-18 10:55:07,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:07,666 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-04-18 10:55:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 10:55:07,667 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 17 [2020-04-18 10:55:07,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:07,667 INFO L225 Difference]: With dead ends: 35 [2020-04-18 10:55:07,667 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 10:55:07,668 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=254, Invalid=1152, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 10:55:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 10:55:07,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 10:55:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 10:55:07,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 10:55:07,669 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 10:55:07,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:07,669 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 10:55:07,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 10:55:07,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 10:55:07,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:07,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 10:55:07 BasicIcfg [2020-04-18 10:55:07,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 10:55:07,675 INFO L168 Benchmark]: Toolchain (without parser) took 7656.38 ms. Allocated memory was 146.3 MB in the beginning and 308.8 MB in the end (delta: 162.5 MB). Free memory was 101.7 MB in the beginning and 230.0 MB in the end (delta: -128.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,676 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.99 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 160.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.73 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,678 INFO L168 Benchmark]: Boogie Preprocessor took 30.78 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,678 INFO L168 Benchmark]: RCFGBuilder took 471.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 134.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,679 INFO L168 Benchmark]: TraceAbstraction took 6338.91 ms. Allocated memory was 203.4 MB in the beginning and 308.8 MB in the end (delta: 105.4 MB). Free memory was 134.3 MB in the beginning and 230.0 MB in the end (delta: -95.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:07,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.99 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 160.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.73 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.78 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 134.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6338.91 ms. Allocated memory was 203.4 MB in the beginning and 308.8 MB in the end (delta: 105.4 MB). Free memory was 134.3 MB in the beginning and 230.0 MB in the end (delta: -95.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 670 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 141 SDtfs, 267 SDslu, 377 SDs, 0 SdLazy, 363 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 424 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 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...