/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/safe018_tso.opt.i


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-b981219
[2020-04-18 11:01:20,730 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-04-18 11:01:20,732 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 11:01:20,744 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 11:01:20,745 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 11:01:20,746 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 11:01:20,747 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-04-18 11:01:20,754 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
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[2020-04-18 11:01:20,757 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 11:01:20,758 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 11:01:20,759 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 11:01:20,761 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 11:01:20,763 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 11:01:20,765 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 11:01:20,766 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 11:01:20,767 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 11:01:20,768 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 11:01:20,770 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 11:01:20,771 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 11:01:20,771 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 11:01:20,772 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-04-18 11:01:20,778 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 11:01:20,780 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 11:01:20,781 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 11:01:20,795 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-04-18 11:01:20,796 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 11:01:20,797 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 11:01:20,797 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-04-18 11:01:20,797 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-04-18 11:01:20,798 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 11:01:20,798 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-04-18 11:01:20,798 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-04-18 11:01:20,798 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-04-18 11:01:20,798 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-04-18 11:01:20,798 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 11:01:20,799 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 11:01:20,799 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 11:01:20,799 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-04-18 11:01:20,799 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-04-18 11:01:20,799 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-04-18 11:01:20,800 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-04-18 11:01:20,800 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 11:01:20,800 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-04-18 11:01:20,800 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-04-18 11:01:20,800 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-04-18 11:01:20,801 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 11:01:20,801 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 11:01:20,801 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 11:01:20,801 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 11:01:20,802 INFO  L138        SettingsManager]:  * Trace refinement strategy=MCR
[2020-04-18 11:01:20,802 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 11:01:20,802 INFO  L138        SettingsManager]:  * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 11:01:20,802 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 11:01:20,802 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 11:01:21,098 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 11:01:21,119 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 11:01:21,122 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 11:01:21,123 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-04-18 11:01:21,124 INFO  L275        PluginConnector]: CDTParser initialized
[2020-04-18 11:01:21,124 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i
[2020-04-18 11:01:21,203 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7705b7dd/3bf8a494400d448ab43b49a46a6f92e6/FLAGac7d9a101
[2020-04-18 11:01:21,818 INFO  L306              CDTParser]: Found 1 translation units.
[2020-04-18 11:01:21,819 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i
[2020-04-18 11:01:21,839 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7705b7dd/3bf8a494400d448ab43b49a46a6f92e6/FLAGac7d9a101
[2020-04-18 11:01:22,114 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7705b7dd/3bf8a494400d448ab43b49a46a6f92e6
[2020-04-18 11:01:22,122 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 11:01:22,144 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 11:01:22,146 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 11:01:22,146 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 11:01:22,150 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 11:01:22,151 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:22,154 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1db9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22, skipping insertion in model container
[2020-04-18 11:01:22,155 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:22,162 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-04-18 11:01:22,208 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-04-18 11:01:22,760 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:01:22,779 INFO  L203         MainTranslator]: Completed pre-run
[2020-04-18 11:01:22,847 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:01:22,928 INFO  L208         MainTranslator]: Completed translation
[2020-04-18 11:01:22,929 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22 WrapperNode
[2020-04-18 11:01:22,929 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 11:01:22,930 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 11:01:22,930 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 11:01:22,930 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 11:01:22,939 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:22,963 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:22,993 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 11:01:22,994 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 11:01:22,994 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 11:01:22,994 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 11:01:23,002 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,002 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,004 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,005 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,011 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,013 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,016 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (1/1) ...
[2020-04-18 11:01:23,019 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 11:01:23,020 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 11:01:23,020 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 11:01:23,020 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-04-18 11:01:23,021 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (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 11:01:23,101 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 11:01:23,101 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 11:01:23,101 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 11:01:23,102 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 11:01:23,102 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 11:01:23,103 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 11:01:23,103 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 11:01:23,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 11:01:23,104 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 11:01:23,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 11:01:23,105 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 11:01:23,106 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 11:01:23,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 11:01:23,108 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 11:01:23,548 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 11:01:23,548 INFO  L295             CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 11:01:23,553 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:01:23 BoogieIcfgContainer
[2020-04-18 11:01:23,553 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 11:01:23,555 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 11:01:23,555 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 11:01:23,558 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-04-18 11:01:23,559 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:01:22" (1/3) ...
[2020-04-18 11:01:23,560 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221ab850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:01:23, skipping insertion in model container
[2020-04-18 11:01:23,560 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:01:22" (2/3) ...
[2020-04-18 11:01:23,560 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221ab850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:01:23, skipping insertion in model container
[2020-04-18 11:01:23,561 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:01:23" (3/3) ...
[2020-04-18 11:01:23,563 INFO  L109   eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i
[2020-04-18 11:01:23,573 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 11:01:23,574 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 11:01:23,581 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 11:01:23,582 INFO  L340   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 11:01:23,613 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,613 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,615 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,615 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,616 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,616 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,617 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,618 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,618 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,619 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,619 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,619 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,620 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,620 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,621 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,621 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,622 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,622 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,627 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,627 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,627 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,628 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,635 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,636 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,636 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,636 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,639 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,639 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,639 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,639 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:01:23,657 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 11:01:23,679 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-04-18 11:01:23,679 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-04-18 11:01:23,679 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 11:01:23,680 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 11:01:23,680 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 11:01:23,680 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-04-18 11:01:23,680 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 11:01:23,680 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 11:01:23,697 INFO  L152   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow
[2020-04-18 11:01:23,699 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-04-18 11:01:23,745 INFO  L129       PetriNetUnfolder]: 2/66 cut-off events.
[2020-04-18 11:01:23,745 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:01:23,750 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. 
[2020-04-18 11:01:23,753 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-04-18 11:01:23,775 INFO  L129       PetriNetUnfolder]: 2/66 cut-off events.
[2020-04-18 11:01:23,775 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:01:23,776 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. 
[2020-04-18 11:01:23,778 INFO  L158   etLargeBlockEncoding]: Number of co-enabled transitions 1178
[2020-04-18 11:01:23,779 INFO  L170   etLargeBlockEncoding]: Semantic Check.
[2020-04-18 11:01:25,608 INFO  L206   etLargeBlockEncoding]: Checked pairs total: 1996
[2020-04-18 11:01:25,609 INFO  L214   etLargeBlockEncoding]: Total number of compositions: 58
[2020-04-18 11:01:25,613 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow
[2020-04-18 11:01:25,635 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states.
[2020-04-18 11:01:25,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states.
[2020-04-18 11:01:25,645 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:01:25,646 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:25,647 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:25,647 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:25,653 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:25,653 INFO  L82        PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 1 times
[2020-04-18 11:01:25,660 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:25,661 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [572651510]
[2020-04-18 11:01:25,679 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:25,696 INFO  L259    McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:01:25,698 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 11:01:25,702 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:01:25,702 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:25,704 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:25,704 INFO  L82        PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 2 times
[2020-04-18 11:01:25,708 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:25,709 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018279241]
[2020-04-18 11:01:25,710 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:25,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:25,990 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 11:01:25,991 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018279241]
[2020-04-18 11:01:25,992 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:25,992 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 11:01:25,993 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:25,994 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:25,997 INFO  L259    McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:01:25,997 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,004 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:01:26,008 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:01:26,009 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:01:26,011 INFO  L87              Difference]: Start difference. First operand 9 states. Second operand 3 states.
[2020-04-18 11:01:26,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,015 INFO  L93              Difference]: Finished difference Result 9 states and 8 transitions.
[2020-04-18 11:01:26,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2020-04-18 11:01:26,016 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:26,016 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [572651510]
[2020-04-18 11:01:26,017 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:26,017 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 11:01:26,018 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [572651510]
[2020-04-18 11:01:26,019 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:01:26,019 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:26,024 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:01:26,025 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:01:26,025 INFO  L87              Difference]: Start difference. First operand 226 states. Second operand 3 states.
[2020-04-18 11:01:26,079 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,079 INFO  L93              Difference]: Finished difference Result 214 states and 593 transitions.
[2020-04-18 11:01:26,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-04-18 11:01:26,082 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-04-18 11:01:26,083 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:26,111 INFO  L225             Difference]: With dead ends: 214
[2020-04-18 11:01:26,111 INFO  L226             Difference]: Without dead ends: 166
[2020-04-18 11:01:26,115 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 11:01:26,141 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 166 states.
[2020-04-18 11:01:26,179 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166.
[2020-04-18 11:01:26,181 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 166 states.
[2020-04-18 11:01:26,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions.
[2020-04-18 11:01:26,186 INFO  L78                 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8
[2020-04-18 11:01:26,187 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:26,187 INFO  L479      AbstractCegarLoop]: Abstraction has 166 states and 441 transitions.
[2020-04-18 11:01:26,188 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:01:26,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions.
[2020-04-18 11:01:26,189 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:01:26,189 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:26,189 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:26,189 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:26,190 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,190 INFO  L82        PathProgramCache]: Analyzing trace with hash 837018342, now seen corresponding path program 1 times
[2020-04-18 11:01:26,190 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:26,191 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [993255107]
[2020-04-18 11:01:26,191 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,192 INFO  L259    McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 11:01:26,192 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 11:01:26,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:01:26,193 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:26,193 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,193 INFO  L82        PathProgramCache]: Analyzing trace with hash 837018342, now seen corresponding path program 2 times
[2020-04-18 11:01:26,194 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:26,194 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814371880]
[2020-04-18 11:01:26,194 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:26,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:26,270 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 11:01:26,271 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814371880]
[2020-04-18 11:01:26,271 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:26,271 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:01:26,272 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:26,272 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,275 INFO  L259    McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 11:01:26,275 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,292 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:01:26,292 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,293 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:01:26,293 INFO  L87              Difference]: Start difference. First operand 16 states. Second operand 4 states.
[2020-04-18 11:01:26,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,306 INFO  L93              Difference]: Finished difference Result 16 states and 21 transitions.
[2020-04-18 11:01:26,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions.
[2020-04-18 11:01:26,307 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:26,307 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [993255107]
[2020-04-18 11:01:26,308 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:26,308 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:01:26,308 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [993255107]
[2020-04-18 11:01:26,309 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 11:01:26,309 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:26,309 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,309 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-18 11:01:26,310 INFO  L87              Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states.
[2020-04-18 11:01:26,324 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,324 INFO  L93              Difference]: Finished difference Result 184 states and 465 transitions.
[2020-04-18 11:01:26,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-04-18 11:01:26,325 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-04-18 11:01:26,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:26,326 INFO  L225             Difference]: With dead ends: 184
[2020-04-18 11:01:26,326 INFO  L226             Difference]: Without dead ends: 88
[2020-04-18 11:01:26,328 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 11:01:26,330 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2020-04-18 11:01:26,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2020-04-18 11:01:26,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 88 states.
[2020-04-18 11:01:26,337 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 207 transitions.
[2020-04-18 11:01:26,337 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 207 transitions. Word has length 9
[2020-04-18 11:01:26,337 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:26,338 INFO  L479      AbstractCegarLoop]: Abstraction has 88 states and 207 transitions.
[2020-04-18 11:01:26,338 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 11:01:26,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 207 transitions.
[2020-04-18 11:01:26,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:01:26,339 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:26,339 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:26,339 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:26,339 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,340 INFO  L82        PathProgramCache]: Analyzing trace with hash -1248093964, now seen corresponding path program 1 times
[2020-04-18 11:01:26,340 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:26,340 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [422718892]
[2020-04-18 11:01:26,341 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,341 INFO  L259    McrAutomatonBuilder]: Finished intersection with 28 states and 47 transitions.
[2020-04-18 11:01:26,342 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states.
[2020-04-18 11:01:26,343 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:01:26,343 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:26,343 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,343 INFO  L82        PathProgramCache]: Analyzing trace with hash 1215159266, now seen corresponding path program 2 times
[2020-04-18 11:01:26,344 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:26,344 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896353029]
[2020-04-18 11:01:26,344 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:26,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:26,396 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 11:01:26,396 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896353029]
[2020-04-18 11:01:26,397 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:26,397 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:01:26,397 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:26,398 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,400 INFO  L259    McrAutomatonBuilder]: Finished intersection with 22 states and 32 transitions.
[2020-04-18 11:01:26,400 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,409 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:01:26,410 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,410 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:01:26,410 INFO  L87              Difference]: Start difference. First operand 28 states. Second operand 4 states.
[2020-04-18 11:01:26,423 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,423 INFO  L93              Difference]: Finished difference Result 31 states and 49 transitions.
[2020-04-18 11:01:26,424 INFO  L276                IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions.
[2020-04-18 11:01:26,424 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:01:26,424 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:01:26,425 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,425 INFO  L82        PathProgramCache]: Analyzing trace with hash -1248093964, now seen corresponding path program 3 times
[2020-04-18 11:01:26,425 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:26,425 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54219286]
[2020-04-18 11:01:26,425 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:26,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:26,472 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 11:01:26,473 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54219286]
[2020-04-18 11:01:26,473 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:26,473 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:01:26,473 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:26,474 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,476 INFO  L259    McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions.
[2020-04-18 11:01:26,476 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,489 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:01:26,489 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,489 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:01:26,490 INFO  L87              Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 4 states.
[2020-04-18 11:01:26,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,499 INFO  L93              Difference]: Finished difference Result 31 states and 49 transitions.
[2020-04-18 11:01:26,499 INFO  L276                IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions.
[2020-04-18 11:01:26,499 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:26,500 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [422718892]
[2020-04-18 11:01:26,500 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:26,500 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:01:26,501 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [422718892]
[2020-04-18 11:01:26,501 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 11:01:26,501 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:26,501 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:01:26,502 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-04-18 11:01:26,502 INFO  L87              Difference]: Start difference. First operand 88 states and 207 transitions. Second operand 6 states.
[2020-04-18 11:01:26,582 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,582 INFO  L93              Difference]: Finished difference Result 118 states and 268 transitions.
[2020-04-18 11:01:26,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-04-18 11:01:26,583 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 11
[2020-04-18 11:01:26,584 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:26,584 INFO  L225             Difference]: With dead ends: 118
[2020-04-18 11:01:26,585 INFO  L226             Difference]: Without dead ends: 64
[2020-04-18 11:01:26,585 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 11:01:26,588 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2020-04-18 11:01:26,598 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2020-04-18 11:01:26,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 64 states.
[2020-04-18 11:01:26,599 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions.
[2020-04-18 11:01:26,599 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11
[2020-04-18 11:01:26,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:26,600 INFO  L479      AbstractCegarLoop]: Abstraction has 64 states and 137 transitions.
[2020-04-18 11:01:26,600 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 11:01:26,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions.
[2020-04-18 11:01:26,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:01:26,601 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:26,601 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:26,601 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:26,601 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,602 INFO  L82        PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 1 times
[2020-04-18 11:01:26,602 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:26,602 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [614352828]
[2020-04-18 11:01:26,603 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,606 INFO  L259    McrAutomatonBuilder]: Finished intersection with 50 states and 108 transitions.
[2020-04-18 11:01:26,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states.
[2020-04-18 11:01:26,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:01:26,610 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:26,610 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,611 INFO  L82        PathProgramCache]: Analyzing trace with hash -984768229, now seen corresponding path program 2 times
[2020-04-18 11:01:26,611 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:26,611 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50367179]
[2020-04-18 11:01:26,611 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:26,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:26,728 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 11:01:26,729 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50367179]
[2020-04-18 11:01:26,729 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:26,731 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:26,732 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:26,733 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,737 INFO  L259    McrAutomatonBuilder]: Finished intersection with 30 states and 50 transitions.
[2020-04-18 11:01:26,737 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,748 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:01:26,749 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,749 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:01:26,749 INFO  L87              Difference]: Start difference. First operand 50 states. Second operand 4 states.
[2020-04-18 11:01:26,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,765 INFO  L93              Difference]: Finished difference Result 56 states and 115 transitions.
[2020-04-18 11:01:26,766 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 115 transitions.
[2020-04-18 11:01:26,766 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:01:26,766 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:01:26,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,767 INFO  L82        PathProgramCache]: Analyzing trace with hash -36207031, now seen corresponding path program 3 times
[2020-04-18 11:01:26,769 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:26,769 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941222764]
[2020-04-18 11:01:26,769 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:26,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:26,846 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 11:01:26,846 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941222764]
[2020-04-18 11:01:26,847 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:26,847 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:26,848 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:26,849 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,852 INFO  L259    McrAutomatonBuilder]: Finished intersection with 22 states and 32 transitions.
[2020-04-18 11:01:26,852 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,869 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:01:26,869 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,869 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:01:26,869 INFO  L87              Difference]: Start difference. First operand 56 states and 115 transitions. Second operand 4 states.
[2020-04-18 11:01:26,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,883 INFO  L93              Difference]: Finished difference Result 71 states and 137 transitions.
[2020-04-18 11:01:26,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 137 transitions.
[2020-04-18 11:01:26,884 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:01:26,885 INFO  L105                    Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:01:26,885 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:26,885 INFO  L82        PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 4 times
[2020-04-18 11:01:26,885 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:26,886 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695572044]
[2020-04-18 11:01:26,886 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:26,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:26,957 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 11:01:26,958 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695572044]
[2020-04-18 11:01:26,958 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:26,958 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:01:26,959 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:26,960 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:26,962 INFO  L259    McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions.
[2020-04-18 11:01:26,962 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:26,983 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:01:26,983 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:26,984 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:01:26,984 INFO  L87              Difference]: Start difference. First operand 71 states and 137 transitions. Second operand 4 states.
[2020-04-18 11:01:26,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:26,995 INFO  L93              Difference]: Finished difference Result 71 states and 137 transitions.
[2020-04-18 11:01:26,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 137 transitions.
[2020-04-18 11:01:26,996 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:26,996 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [614352828]
[2020-04-18 11:01:26,997 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:26,997 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:01:26,997 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [614352828]
[2020-04-18 11:01:26,997 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 11:01:26,997 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:26,998 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 11:01:26,998 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2020-04-18 11:01:26,998 INFO  L87              Difference]: Start difference. First operand 64 states and 137 transitions. Second operand 8 states.
[2020-04-18 11:01:27,270 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:27,271 INFO  L93              Difference]: Finished difference Result 77 states and 150 transitions.
[2020-04-18 11:01:27,271 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-04-18 11:01:27,271 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 12
[2020-04-18 11:01:27,271 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:27,272 INFO  L225             Difference]: With dead ends: 77
[2020-04-18 11:01:27,272 INFO  L226             Difference]: Without dead ends: 56
[2020-04-18 11:01:27,273 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506
[2020-04-18 11:01:27,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2020-04-18 11:01:27,277 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2020-04-18 11:01:27,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 56 states.
[2020-04-18 11:01:27,278 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 109 transitions.
[2020-04-18 11:01:27,278 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 109 transitions. Word has length 12
[2020-04-18 11:01:27,279 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:27,279 INFO  L479      AbstractCegarLoop]: Abstraction has 56 states and 109 transitions.
[2020-04-18 11:01:27,279 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 11:01:27,279 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions.
[2020-04-18 11:01:27,279 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:01:27,279 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:27,280 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:27,280 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:27,280 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:27,280 INFO  L82        PathProgramCache]: Analyzing trace with hash -1337478729, now seen corresponding path program 1 times
[2020-04-18 11:01:27,280 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:27,281 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [661821601]
[2020-04-18 11:01:27,281 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:27,283 INFO  L259    McrAutomatonBuilder]: Finished intersection with 72 states and 169 transitions.
[2020-04-18 11:01:27,284 INFO  L276                IsEmpty]: Start isEmpty. Operand 72 states.
[2020-04-18 11:01:27,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:01:27,285 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:27,285 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:27,285 INFO  L82        PathProgramCache]: Analyzing trace with hash -463043823, now seen corresponding path program 2 times
[2020-04-18 11:01:27,285 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:27,286 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4393953]
[2020-04-18 11:01:27,286 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:27,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:27,317 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 11:01:27,318 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4393953]
[2020-04-18 11:01:27,318 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:27,318 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:27,319 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:27,320 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:27,325 INFO  L259    McrAutomatonBuilder]: Finished intersection with 35 states and 60 transitions.
[2020-04-18 11:01:27,325 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:27,333 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:01:27,333 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:27,333 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:01:27,334 INFO  L87              Difference]: Start difference. First operand 72 states. Second operand 4 states.
[2020-04-18 11:01:27,345 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:27,345 INFO  L93              Difference]: Finished difference Result 81 states and 181 transitions.
[2020-04-18 11:01:27,346 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 181 transitions.
[2020-04-18 11:01:27,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:01:27,346 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:01:27,346 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:27,347 INFO  L82        PathProgramCache]: Analyzing trace with hash -1122417757, now seen corresponding path program 3 times
[2020-04-18 11:01:27,347 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:27,347 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021060338]
[2020-04-18 11:01:27,347 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:27,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:27,398 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 11:01:27,398 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021060338]
[2020-04-18 11:01:27,399 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:27,399 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:27,402 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:27,403 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:27,408 INFO  L259    McrAutomatonBuilder]: Finished intersection with 26 states and 39 transitions.
[2020-04-18 11:01:27,408 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:27,424 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:01:27,425 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:27,425 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:01:27,425 INFO  L87              Difference]: Start difference. First operand 81 states and 181 transitions. Second operand 4 states.
[2020-04-18 11:01:27,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:27,438 INFO  L93              Difference]: Finished difference Result 111 states and 240 transitions.
[2020-04-18 11:01:27,438 INFO  L276                IsEmpty]: Start isEmpty. Operand 111 states and 240 transitions.
[2020-04-18 11:01:27,439 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:01:27,439 INFO  L105                    Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:01:27,439 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:27,440 INFO  L82        PathProgramCache]: Analyzing trace with hash -1676497961, now seen corresponding path program 4 times
[2020-04-18 11:01:27,440 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:27,440 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876897252]
[2020-04-18 11:01:27,440 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:27,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:27,548 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 11:01:27,548 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876897252]
[2020-04-18 11:01:27,549 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:27,549 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:01:27,549 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:27,552 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:27,554 INFO  L259    McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 11:01:27,555 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:27,579 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:01:27,580 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:27,581 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:01:27,581 INFO  L87              Difference]: Start difference. First operand 111 states and 240 transitions. Second operand 4 states.
[2020-04-18 11:01:27,602 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:27,603 INFO  L93              Difference]: Finished difference Result 135 states and 274 transitions.
[2020-04-18 11:01:27,603 INFO  L276                IsEmpty]: Start isEmpty. Operand 135 states and 274 transitions.
[2020-04-18 11:01:27,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:01:27,604 INFO  L105                    Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:01:27,605 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:27,605 INFO  L82        PathProgramCache]: Analyzing trace with hash -1337478729, now seen corresponding path program 5 times
[2020-04-18 11:01:27,605 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:27,605 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327682543]
[2020-04-18 11:01:27,606 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:27,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:27,702 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 11:01:27,703 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327682543]
[2020-04-18 11:01:27,703 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:27,703 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:27,704 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:27,705 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:27,708 INFO  L259    McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 11:01:27,708 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:27,798 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 11:01:27,799 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:01:27,799 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2020-04-18 11:01:27,799 INFO  L87              Difference]: Start difference. First operand 135 states and 274 transitions. Second operand 6 states.
[2020-04-18 11:01:27,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:27,834 INFO  L93              Difference]: Finished difference Result 135 states and 274 transitions.
[2020-04-18 11:01:27,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 135 states and 274 transitions.
[2020-04-18 11:01:27,835 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:27,836 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [661821601]
[2020-04-18 11:01:27,836 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:27,836 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:01:27,836 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [661821601]
[2020-04-18 11:01:27,836 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-04-18 11:01:27,837 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:27,837 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-04-18 11:01:27,837 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182
[2020-04-18 11:01:27,837 INFO  L87              Difference]: Start difference. First operand 56 states and 109 transitions. Second operand 10 states.
[2020-04-18 11:01:28,079 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,079 INFO  L93              Difference]: Finished difference Result 57 states and 99 transitions.
[2020-04-18 11:01:28,079 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-04-18 11:01:28,080 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 13
[2020-04-18 11:01:28,080 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:28,080 INFO  L225             Difference]: With dead ends: 57
[2020-04-18 11:01:28,080 INFO  L226             Difference]: Without dead ends: 42
[2020-04-18 11:01:28,081 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600
[2020-04-18 11:01:28,082 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2020-04-18 11:01:28,084 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2020-04-18 11:01:28,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2020-04-18 11:01:28,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions.
[2020-04-18 11:01:28,085 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 13
[2020-04-18 11:01:28,085 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:28,085 INFO  L479      AbstractCegarLoop]: Abstraction has 42 states and 69 transitions.
[2020-04-18 11:01:28,085 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-04-18 11:01:28,086 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions.
[2020-04-18 11:01:28,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:01:28,086 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:28,086 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:28,086 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:28,087 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,087 INFO  L82        PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 1 times
[2020-04-18 11:01:28,087 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:28,087 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [1928082735]
[2020-04-18 11:01:28,088 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,089 INFO  L259    McrAutomatonBuilder]: Finished intersection with 90 states and 220 transitions.
[2020-04-18 11:01:28,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states.
[2020-04-18 11:01:28,091 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:01:28,091 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:28,091 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,091 INFO  L82        PathProgramCache]: Analyzing trace with hash -1469783626, now seen corresponding path program 2 times
[2020-04-18 11:01:28,092 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:28,092 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200487107]
[2020-04-18 11:01:28,092 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:28,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:28,124 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 11:01:28,124 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200487107]
[2020-04-18 11:01:28,125 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:28,125 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:28,125 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:28,127 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,130 INFO  L259    McrAutomatonBuilder]: Finished intersection with 36 states and 61 transitions.
[2020-04-18 11:01:28,131 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:28,141 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:01:28,141 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:28,141 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:01:28,142 INFO  L87              Difference]: Start difference. First operand 90 states. Second operand 4 states.
[2020-04-18 11:01:28,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,158 INFO  L93              Difference]: Finished difference Result 108 states and 253 transitions.
[2020-04-18 11:01:28,158 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions.
[2020-04-18 11:01:28,159 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:01:28,159 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:01:28,159 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,159 INFO  L82        PathProgramCache]: Analyzing trace with hash -412302120, now seen corresponding path program 3 times
[2020-04-18 11:01:28,160 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:28,160 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630118775]
[2020-04-18 11:01:28,160 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:28,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:28,189 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 11:01:28,189 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630118775]
[2020-04-18 11:01:28,190 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:28,190 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:28,190 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:28,191 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,194 INFO  L259    McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions.
[2020-04-18 11:01:28,195 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:28,209 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:01:28,209 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:28,209 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:01:28,210 INFO  L87              Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 4 states.
[2020-04-18 11:01:28,223 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,224 INFO  L93              Difference]: Finished difference Result 156 states and 357 transitions.
[2020-04-18 11:01:28,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 357 transitions.
[2020-04-18 11:01:28,225 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:01:28,225 INFO  L105                    Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:01:28,225 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,225 INFO  L82        PathProgramCache]: Analyzing trace with hash -431805210, now seen corresponding path program 4 times
[2020-04-18 11:01:28,225 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:28,226 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001516361]
[2020-04-18 11:01:28,226 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:28,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:28,288 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 11:01:28,289 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001516361]
[2020-04-18 11:01:28,289 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:28,289 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:01:28,289 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:28,291 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,294 INFO  L259    McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions.
[2020-04-18 11:01:28,295 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:28,325 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:01:28,325 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:28,325 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:01:28,326 INFO  L87              Difference]: Start difference. First operand 156 states and 357 transitions. Second operand 4 states.
[2020-04-18 11:01:28,362 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,363 INFO  L93              Difference]: Finished difference Result 210 states and 446 transitions.
[2020-04-18 11:01:28,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 210 states and 446 transitions.
[2020-04-18 11:01:28,364 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:01:28,365 INFO  L105                    Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:01:28,365 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,365 INFO  L82        PathProgramCache]: Analyzing trace with hash 1487856390, now seen corresponding path program 5 times
[2020-04-18 11:01:28,365 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:28,366 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343798200]
[2020-04-18 11:01:28,366 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:28,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:28,422 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 11:01:28,422 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343798200]
[2020-04-18 11:01:28,422 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:28,423 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:28,423 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:28,424 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,428 INFO  L259    McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions.
[2020-04-18 11:01:28,428 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:28,476 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:01:28,476 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:01:28,476 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2020-04-18 11:01:28,476 INFO  L87              Difference]: Start difference. First operand 210 states and 446 transitions. Second operand 6 states.
[2020-04-18 11:01:28,526 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,526 INFO  L93              Difference]: Finished difference Result 222 states and 456 transitions.
[2020-04-18 11:01:28,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 222 states and 456 transitions.
[2020-04-18 11:01:28,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:01:28,528 INFO  L105                    Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:01:28,528 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,529 INFO  L82        PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 6 times
[2020-04-18 11:01:28,529 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:28,529 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570509518]
[2020-04-18 11:01:28,529 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:28,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:28,592 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 11:01:28,593 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570509518]
[2020-04-18 11:01:28,593 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:28,593 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:01:28,594 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:28,595 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,598 INFO  L259    McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions.
[2020-04-18 11:01:28,598 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:28,647 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:01:28,647 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:01:28,648 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210
[2020-04-18 11:01:28,648 INFO  L87              Difference]: Start difference. First operand 222 states and 456 transitions. Second operand 7 states.
[2020-04-18 11:01:28,725 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,726 INFO  L93              Difference]: Finished difference Result 222 states and 456 transitions.
[2020-04-18 11:01:28,726 INFO  L276                IsEmpty]: Start isEmpty. Operand 222 states and 456 transitions.
[2020-04-18 11:01:28,727 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:28,727 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1928082735]
[2020-04-18 11:01:28,728 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:28,728 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:01:28,728 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1928082735]
[2020-04-18 11:01:28,728 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-04-18 11:01:28,728 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:28,729 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-04-18 11:01:28,729 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240
[2020-04-18 11:01:28,729 INFO  L87              Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 11 states.
[2020-04-18 11:01:28,967 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:28,967 INFO  L93              Difference]: Finished difference Result 39 states and 61 transitions.
[2020-04-18 11:01:28,967 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2020-04-18 11:01:28,968 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 14
[2020-04-18 11:01:28,968 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:28,968 INFO  L225             Difference]: With dead ends: 39
[2020-04-18 11:01:28,969 INFO  L226             Difference]: Without dead ends: 33
[2020-04-18 11:01:28,970 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600
[2020-04-18 11:01:28,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2020-04-18 11:01:28,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2020-04-18 11:01:28,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2020-04-18 11:01:28,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions.
[2020-04-18 11:01:28,973 INFO  L78                 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14
[2020-04-18 11:01:28,973 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:28,973 INFO  L479      AbstractCegarLoop]: Abstraction has 33 states and 51 transitions.
[2020-04-18 11:01:28,974 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-04-18 11:01:28,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions.
[2020-04-18 11:01:28,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:28,974 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:01:28,974 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:01:28,975 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:01:28,975 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,975 INFO  L82        PathProgramCache]: Analyzing trace with hash -958438309, now seen corresponding path program 1 times
[2020-04-18 11:01:28,975 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:01:28,976 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [628587503]
[2020-04-18 11:01:28,976 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:28,980 INFO  L259    McrAutomatonBuilder]: Finished intersection with 178 states and 482 transitions.
[2020-04-18 11:01:28,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 178 states.
[2020-04-18 11:01:28,983 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:28,983 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:01:28,983 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:28,997 INFO  L82        PathProgramCache]: Analyzing trace with hash 96402109, now seen corresponding path program 2 times
[2020-04-18 11:01:28,997 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:28,997 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227166293]
[2020-04-18 11:01:28,998 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:29,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:29,022 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 11:01:29,022 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227166293]
[2020-04-18 11:01:29,023 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:29,023 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:29,023 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:29,025 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:29,030 INFO  L259    McrAutomatonBuilder]: Finished intersection with 49 states and 87 transitions.
[2020-04-18 11:01:29,030 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:29,041 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:01:29,042 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:29,042 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:01:29,042 INFO  L87              Difference]: Start difference. First operand 178 states. Second operand 4 states.
[2020-04-18 11:01:29,055 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:29,055 INFO  L93              Difference]: Finished difference Result 232 states and 617 transitions.
[2020-04-18 11:01:29,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 232 states and 617 transitions.
[2020-04-18 11:01:29,056 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:29,056 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:01:29,057 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:29,057 INFO  L82        PathProgramCache]: Analyzing trace with hash -1154111107, now seen corresponding path program 3 times
[2020-04-18 11:01:29,059 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:29,059 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902568729]
[2020-04-18 11:01:29,059 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:29,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:29,088 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 11:01:29,089 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902568729]
[2020-04-18 11:01:29,089 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:29,089 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:29,089 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:29,091 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:29,094 INFO  L259    McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions.
[2020-04-18 11:01:29,094 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:29,118 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:01:29,118 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:29,119 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:01:29,122 INFO  L87              Difference]: Start difference. First operand 232 states and 617 transitions. Second operand 4 states.
[2020-04-18 11:01:29,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:29,139 INFO  L93              Difference]: Finished difference Result 340 states and 887 transitions.
[2020-04-18 11:01:29,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 340 states and 887 transitions.
[2020-04-18 11:01:29,140 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:29,141 INFO  L105                    Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:01:29,141 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:29,141 INFO  L82        PathProgramCache]: Analyzing trace with hash 1646955883, now seen corresponding path program 4 times
[2020-04-18 11:01:29,141 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:29,142 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323805207]
[2020-04-18 11:01:29,142 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:29,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:29,190 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 11:01:29,190 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323805207]
[2020-04-18 11:01:29,191 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:29,191 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:01:29,191 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:29,193 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:29,198 INFO  L259    McrAutomatonBuilder]: Finished intersection with 33 states and 48 transitions.
[2020-04-18 11:01:29,198 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:29,256 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times.
[2020-04-18 11:01:29,256 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:01:29,257 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2020-04-18 11:01:29,257 INFO  L87              Difference]: Start difference. First operand 340 states and 887 transitions. Second operand 5 states.
[2020-04-18 11:01:29,295 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:29,295 INFO  L93              Difference]: Finished difference Result 500 states and 1227 transitions.
[2020-04-18 11:01:29,295 INFO  L276                IsEmpty]: Start isEmpty. Operand 500 states and 1227 transitions.
[2020-04-18 11:01:29,297 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:29,297 INFO  L105                    Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:01:29,297 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:29,297 INFO  L82        PathProgramCache]: Analyzing trace with hash 1647025633, now seen corresponding path program 5 times
[2020-04-18 11:01:29,298 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:29,298 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391834619]
[2020-04-18 11:01:29,299 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:29,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:29,364 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 11:01:29,364 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391834619]
[2020-04-18 11:01:29,365 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:29,365 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:01:29,365 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:29,367 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:29,370 INFO  L259    McrAutomatonBuilder]: Finished intersection with 31 states and 44 transitions.
[2020-04-18 11:01:29,370 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:29,402 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:01:29,403 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:01:29,403 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182
[2020-04-18 11:01:29,403 INFO  L87              Difference]: Start difference. First operand 500 states and 1227 transitions. Second operand 4 states.
[2020-04-18 11:01:29,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:29,439 INFO  L93              Difference]: Finished difference Result 734 states and 1676 transitions.
[2020-04-18 11:01:29,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 734 states and 1676 transitions.
[2020-04-18 11:01:29,442 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:29,442 INFO  L105                    Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:01:29,442 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:29,442 INFO  L82        PathProgramCache]: Analyzing trace with hash -394114047, now seen corresponding path program 6 times
[2020-04-18 11:01:29,443 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:29,443 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126546858]
[2020-04-18 11:01:29,443 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:29,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:29,536 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 11:01:29,538 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126546858]
[2020-04-18 11:01:29,538 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:29,538 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:01:29,538 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:29,540 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:29,544 INFO  L259    McrAutomatonBuilder]: Finished intersection with 30 states and 42 transitions.
[2020-04-18 11:01:29,544 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:29,593 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:01:29,593 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:01:29,593 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2020-04-18 11:01:29,594 INFO  L87              Difference]: Start difference. First operand 734 states and 1676 transitions. Second operand 6 states.
[2020-04-18 11:01:29,678 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:29,679 INFO  L93              Difference]: Finished difference Result 826 states and 1792 transitions.
[2020-04-18 11:01:29,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 826 states and 1792 transitions.
[2020-04-18 11:01:29,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-18 11:01:29,681 INFO  L105                    Mcr]: ---- MCR iteration 5 ----
[2020-04-18 11:01:29,682 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:01:29,682 INFO  L82        PathProgramCache]: Analyzing trace with hash -943469479, now seen corresponding path program 7 times
[2020-04-18 11:01:29,682 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:01:29,682 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371119902]
[2020-04-18 11:01:29,682 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:01:29,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:01:29,749 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 11:01:29,750 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371119902]
[2020-04-18 11:01:29,750 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:01:29,750 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 11:01:29,751 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:01:29,753 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:01:29,757 INFO  L259    McrAutomatonBuilder]: Finished intersection with 26 states and 34 transitions.
[2020-04-18 11:01:29,757 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:01:29,813 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:01:29,813 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:01:29,813 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342
[2020-04-18 11:01:29,814 INFO  L87              Difference]: Start difference. First operand 826 states and 1792 transitions. Second operand 7 states.
[2020-04-18 11:01:29,936 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:29,937 INFO  L93              Difference]: Finished difference Result 840 states and 1799 transitions.
[2020-04-18 11:01:29,937 INFO  L276                IsEmpty]: Start isEmpty. Operand 840 states and 1799 transitions.
[2020-04-18 11:01:29,939 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:29,940 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [628587503]
[2020-04-18 11:01:29,940 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:01:29,940 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 11:01:29,940 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [628587503]
[2020-04-18 11:01:29,941 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 11:01:29,941 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:01:29,941 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 11:01:29,941 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380
[2020-04-18 11:01:29,942 INFO  L87              Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 14 states.
[2020-04-18 11:01:30,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:01:30,241 INFO  L93              Difference]: Finished difference Result 32 states and 50 transitions.
[2020-04-18 11:01:30,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-04-18 11:01:30,242 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 16
[2020-04-18 11:01:30,242 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:01:30,242 INFO  L225             Difference]: With dead ends: 32
[2020-04-18 11:01:30,242 INFO  L226             Difference]: Without dead ends: 0
[2020-04-18 11:01:30,243 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122
[2020-04-18 11:01:30,243 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 11:01:30,243 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 11:01:30,243 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 11:01:30,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 11:01:30,244 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2020-04-18 11:01:30,244 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:01:30,244 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 11:01:30,244 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 11:01:30,244 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 11:01:30,244 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:01:30,248 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:01:30 BasicIcfg
[2020-04-18 11:01:30,248 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 11:01:30,251 INFO  L168              Benchmark]: Toolchain (without parser) took 8126.70 ms. Allocated memory was 144.2 MB in the beginning and 319.8 MB in the end (delta: 175.6 MB). Free memory was 99.4 MB in the beginning and 275.9 MB in the end (delta: -176.5 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,251 INFO  L168              Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,252 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 783.94 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 97.5 MB in the beginning and 157.5 MB in the end (delta: -60.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,253 INFO  L168              Benchmark]: Boogie Procedure Inliner took 63.44 ms. Allocated memory is still 201.9 MB. Free memory was 157.5 MB in the beginning and 155.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,253 INFO  L168              Benchmark]: Boogie Preprocessor took 25.62 ms. Allocated memory is still 201.9 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,254 INFO  L168              Benchmark]: RCFGBuilder took 533.74 ms. Allocated memory is still 201.9 MB. Free memory was 153.9 MB in the beginning and 131.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,254 INFO  L168              Benchmark]: TraceAbstraction took 6693.66 ms. Allocated memory was 201.9 MB in the beginning and 319.8 MB in the end (delta: 118.0 MB). Free memory was 131.6 MB in the beginning and 275.9 MB in the end (delta: -144.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-18 11:01:30,258 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 783.94 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 97.5 MB in the beginning and 157.5 MB in the end (delta: -60.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 63.44 ms. Allocated memory is still 201.9 MB. Free memory was 157.5 MB in the beginning and 155.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 25.62 ms. Allocated memory is still 201.9 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 533.74 ms. Allocated memory is still 201.9 MB. Free memory was 153.9 MB in the beginning and 131.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 6693.66 ms. Allocated memory was 201.9 MB in the beginning and 319.8 MB in the end (delta: 118.0 MB). Free memory was 131.6 MB in the beginning and 275.9 MB in the end (delta: -144.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    LbeTime: 1.9s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 630 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1996 CheckedPairsTotal, 58 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 104 SDtfs, 226 SDslu, 232 SDs, 0 SdLazy, 313 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 7 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...