/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/safe030_tso.opt.i


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


This is Ultimate 0.1.25-b981219
[2020-04-18 11:19:19,059 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-04-18 11:19:19,061 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 11:19:19,079 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 11:19:19,079 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 11:19:19,081 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 11:19:19,083 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 11:19:19,090 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 11:19:19,091 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 11:19:19,096 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-18 11:19:19,097 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-04-18 11:19:19,098 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-18 11:19:19,099 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 11:19:19,100 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 11:19:19,101 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 11:19:19,104 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 11:19:19,105 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 11:19:19,106 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 11:19:19,110 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 11:19:19,114 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 11:19:19,117 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 11:19:19,120 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 11:19:19,121 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 11:19:19,122 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 11:19:19,125 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 11:19:19,125 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 11:19:19,125 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 11:19:19,129 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-18 11:19:19,130 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-18 11:19:19,132 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-18 11:19:19,133 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 11:19:19,133 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-18 11:19:19,134 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-04-18 11:19:19,135 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-04-18 11:19:19,138 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-04-18 11:19:19,138 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-04-18 11:19:19,139 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-04-18 11:19:19,139 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-04-18 11:19:19,139 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-04-18 11:19:19,140 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-04-18 11:19:19,140 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 11:19:19,141 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 11:19:19,155 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-04-18 11:19:19,155 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 11:19:19,156 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 11:19:19,156 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-04-18 11:19:19,156 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-04-18 11:19:19,157 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 11:19:19,157 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-04-18 11:19:19,157 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-04-18 11:19:19,157 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-04-18 11:19:19,157 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-04-18 11:19:19,158 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 11:19:19,158 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 11:19:19,158 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 11:19:19,158 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-04-18 11:19:19,158 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-04-18 11:19:19,159 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-04-18 11:19:19,159 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-04-18 11:19:19,159 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 11:19:19,159 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-04-18 11:19:19,159 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-04-18 11:19:19,160 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-04-18 11:19:19,160 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 11:19:19,160 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 11:19:19,160 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 11:19:19,160 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 11:19:19,161 INFO  L138        SettingsManager]:  * Trace refinement strategy=MCR
[2020-04-18 11:19:19,161 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 11:19:19,161 INFO  L138        SettingsManager]:  * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 11:19:19,161 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 11:19:19,161 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 11:19:19,420 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 11:19:19,440 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 11:19:19,444 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 11:19:19,445 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-04-18 11:19:19,445 INFO  L275        PluginConnector]: CDTParser initialized
[2020-04-18 11:19:19,446 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i
[2020-04-18 11:19:19,515 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb6d956c2/6a16e0894d0f4ecfb8617aba1926c6f2/FLAG872082dcc
[2020-04-18 11:19:20,026 INFO  L306              CDTParser]: Found 1 translation units.
[2020-04-18 11:19:20,027 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i
[2020-04-18 11:19:20,041 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb6d956c2/6a16e0894d0f4ecfb8617aba1926c6f2/FLAG872082dcc
[2020-04-18 11:19:20,293 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb6d956c2/6a16e0894d0f4ecfb8617aba1926c6f2
[2020-04-18 11:19:20,302 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 11:19:20,325 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 11:19:20,326 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 11:19:20,327 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 11:19:20,330 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 11:19:20,331 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:20,333 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6abf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20, skipping insertion in model container
[2020-04-18 11:19:20,334 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:20,341 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-04-18 11:19:20,385 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-04-18 11:19:20,847 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:19:20,861 INFO  L203         MainTranslator]: Completed pre-run
[2020-04-18 11:19:20,915 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:19:20,986 INFO  L208         MainTranslator]: Completed translation
[2020-04-18 11:19:20,986 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20 WrapperNode
[2020-04-18 11:19:20,987 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 11:19:20,987 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 11:19:20,988 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 11:19:20,988 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 11:19:20,996 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,027 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,048 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 11:19:21,049 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 11:19:21,049 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 11:19:21,049 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 11:19:21,058 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,058 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,061 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,061 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,069 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,071 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,077 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (1/1) ...
[2020-04-18 11:19:21,081 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 11:19:21,083 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 11:19:21,084 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 11:19:21,084 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-04-18 11:19:21,085 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (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 11:19:21,137 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 11:19:21,137 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 11:19:21,137 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 11:19:21,137 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 11:19:21,137 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 11:19:21,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 11:19:21,138 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 11:19:21,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 11:19:21,138 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 11:19:21,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 11:19:21,138 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 11:19:21,139 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 11:19:21,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 11:19:21,140 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 11:19:21,508 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 11:19:21,508 INFO  L295             CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 11:19:21,513 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:19:21 BoogieIcfgContainer
[2020-04-18 11:19:21,513 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 11:19:21,515 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 11:19:21,515 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 11:19:21,518 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-04-18 11:19:21,518 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:19:20" (1/3) ...
[2020-04-18 11:19:21,519 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@819474a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:19:21, skipping insertion in model container
[2020-04-18 11:19:21,519 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:19:20" (2/3) ...
[2020-04-18 11:19:21,520 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@819474a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:19:21, skipping insertion in model container
[2020-04-18 11:19:21,520 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:19:21" (3/3) ...
[2020-04-18 11:19:21,522 INFO  L109   eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i
[2020-04-18 11:19:21,531 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 11:19:21,531 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 11:19:21,538 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 11:19:21,539 INFO  L340   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 11:19:21,564 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,564 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,564 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,565 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,565 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,565 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,566 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,566 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,566 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,567 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,567 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,567 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,568 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,568 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,568 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,568 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,569 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,569 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,573 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,573 WARN  L315   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,574 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,574 WARN  L315   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,580 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,580 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,581 WARN  L315   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,581 WARN  L315   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,584 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,584 WARN  L315   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,584 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,584 WARN  L315   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:19:21,600 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 11:19:21,620 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-04-18 11:19:21,620 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-04-18 11:19:21,620 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 11:19:21,620 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 11:19:21,621 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 11:19:21,621 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-04-18 11:19:21,621 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 11:19:21,621 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 11:19:21,636 INFO  L152   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow
[2020-04-18 11:19:21,638 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow
[2020-04-18 11:19:21,680 INFO  L129       PetriNetUnfolder]: 2/65 cut-off events.
[2020-04-18 11:19:21,680 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:19:21,685 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. 
[2020-04-18 11:19:21,688 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow
[2020-04-18 11:19:21,708 INFO  L129       PetriNetUnfolder]: 2/65 cut-off events.
[2020-04-18 11:19:21,708 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:19:21,709 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. 
[2020-04-18 11:19:21,711 INFO  L158   etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-18 11:19:21,712 INFO  L170   etLargeBlockEncoding]: Semantic Check.
[2020-04-18 11:19:23,211 INFO  L206   etLargeBlockEncoding]: Checked pairs total: 2202
[2020-04-18 11:19:23,211 INFO  L214   etLargeBlockEncoding]: Total number of compositions: 55
[2020-04-18 11:19:23,217 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow
[2020-04-18 11:19:23,248 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states.
[2020-04-18 11:19:23,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 362 states.
[2020-04-18 11:19:23,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:19:23,258 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:19:23,259 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:19:23,259 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:19:23,265 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,265 INFO  L82        PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times
[2020-04-18 11:19:23,272 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:19:23,272 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [1561148723]
[2020-04-18 11:19:23,286 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:23,296 INFO  L259    McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:19:23,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 11:19:23,297 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:19:23,297 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:19:23,298 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,298 INFO  L82        PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 2 times
[2020-04-18 11:19:23,302 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:23,302 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500006232]
[2020-04-18 11:19:23,302 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:23,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:23,473 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 11:19:23,474 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500006232]
[2020-04-18 11:19:23,475 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:23,476 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:19:23,477 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:23,478 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:23,481 INFO  L259    McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:19:23,481 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:23,485 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:19:23,489 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-18 11:19:23,490 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:19:23,492 INFO  L87              Difference]: Start difference. First operand 9 states. Second operand 2 states.
[2020-04-18 11:19:23,497 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:23,497 INFO  L93              Difference]: Finished difference Result 9 states and 8 transitions.
[2020-04-18 11:19:23,497 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2020-04-18 11:19:23,498 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:19:23,498 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1561148723]
[2020-04-18 11:19:23,499 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:19:23,499 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:19:23,499 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1561148723]
[2020-04-18 11:19:23,501 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-18 11:19:23,501 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:19:23,507 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-18 11:19:23,508 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:19:23,508 INFO  L87              Difference]: Start difference. First operand 362 states. Second operand 2 states.
[2020-04-18 11:19:23,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:23,527 INFO  L93              Difference]: Finished difference Result 362 states and 1072 transitions.
[2020-04-18 11:19:23,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-04-18 11:19:23,529 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-04-18 11:19:23,529 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:19:23,545 INFO  L225             Difference]: With dead ends: 362
[2020-04-18 11:19:23,545 INFO  L226             Difference]: Without dead ends: 298
[2020-04-18 11:19:23,547 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:19:23,574 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-04-18 11:19:23,616 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2020-04-18 11:19:23,618 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-04-18 11:19:23,623 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions.
[2020-04-18 11:19:23,624 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8
[2020-04-18 11:19:23,625 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:19:23,625 INFO  L479      AbstractCegarLoop]: Abstraction has 298 states and 864 transitions.
[2020-04-18 11:19:23,625 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-18 11:19:23,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions.
[2020-04-18 11:19:23,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:19:23,627 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:19:23,627 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:19:23,627 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:19:23,627 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,627 INFO  L82        PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times
[2020-04-18 11:19:23,628 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:19:23,628 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [1198229303]
[2020-04-18 11:19:23,629 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:23,629 INFO  L259    McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 11:19:23,630 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states.
[2020-04-18 11:19:23,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:19:23,630 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:19:23,630 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,631 INFO  L82        PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 2 times
[2020-04-18 11:19:23,631 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:23,631 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048346872]
[2020-04-18 11:19:23,631 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:23,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:23,757 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 11:19:23,758 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048346872]
[2020-04-18 11:19:23,758 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:23,758 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:19:23,759 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:23,759 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:23,760 INFO  L259    McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 11:19:23,761 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:23,768 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:19:23,768 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:19:23,768 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:19:23,769 INFO  L87              Difference]: Start difference. First operand 10 states. Second operand 3 states.
[2020-04-18 11:19:23,769 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:23,769 INFO  L93              Difference]: Finished difference Result 10 states and 9 transitions.
[2020-04-18 11:19:23,770 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions.
[2020-04-18 11:19:23,771 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:19:23,772 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1198229303]
[2020-04-18 11:19:23,772 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:19:23,772 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:19:23,772 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1198229303]
[2020-04-18 11:19:23,773 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:19:23,773 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:19:23,774 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:19:23,774 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:19:23,774 INFO  L87              Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states.
[2020-04-18 11:19:23,801 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:23,802 INFO  L93              Difference]: Finished difference Result 217 states and 540 transitions.
[2020-04-18 11:19:23,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-04-18 11:19:23,803 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-04-18 11:19:23,804 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:19:23,806 INFO  L225             Difference]: With dead ends: 217
[2020-04-18 11:19:23,806 INFO  L226             Difference]: Without dead ends: 217
[2020-04-18 11:19:23,809 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 11:19:23,814 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2020-04-18 11:19:23,835 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217.
[2020-04-18 11:19:23,836 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 217 states.
[2020-04-18 11:19:23,837 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions.
[2020-04-18 11:19:23,838 INFO  L78                 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9
[2020-04-18 11:19:23,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:19:23,838 INFO  L479      AbstractCegarLoop]: Abstraction has 217 states and 540 transitions.
[2020-04-18 11:19:23,838 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:19:23,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions.
[2020-04-18 11:19:23,839 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:19:23,840 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:19:23,840 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:19:23,841 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:19:23,841 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,842 INFO  L82        PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times
[2020-04-18 11:19:23,842 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:19:23,842 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [512132455]
[2020-04-18 11:19:23,843 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:23,843 INFO  L259    McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions.
[2020-04-18 11:19:23,844 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states.
[2020-04-18 11:19:23,848 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:19:23,848 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:19:23,848 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,848 INFO  L82        PathProgramCache]: Analyzing trace with hash 1871490294, now seen corresponding path program 2 times
[2020-04-18 11:19:23,848 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:23,849 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224386768]
[2020-04-18 11:19:23,849 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:23,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:23,920 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 11:19:23,921 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224386768]
[2020-04-18 11:19:23,921 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:23,921 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:19:23,921 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:23,922 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:23,923 INFO  L259    McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions.
[2020-04-18 11:19:23,923 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:23,927 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:19:23,928 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:19:23,928 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:19:23,928 INFO  L87              Difference]: Start difference. First operand 22 states. Second operand 3 states.
[2020-04-18 11:19:23,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:23,932 INFO  L93              Difference]: Finished difference Result 25 states and 32 transitions.
[2020-04-18 11:19:23,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions.
[2020-04-18 11:19:23,933 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:19:23,933 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:19:23,933 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:23,933 INFO  L82        PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 3 times
[2020-04-18 11:19:23,933 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:23,933 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642464283]
[2020-04-18 11:19:23,934 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:23,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:23,999 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 11:19:23,999 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642464283]
[2020-04-18 11:19:24,000 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,000 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:19:24,003 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,004 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,005 INFO  L259    McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions.
[2020-04-18 11:19:24,005 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,011 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:19:24,011 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:19:24,012 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:19:24,012 INFO  L87              Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 4 states.
[2020-04-18 11:19:24,021 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,021 INFO  L93              Difference]: Finished difference Result 25 states and 32 transitions.
[2020-04-18 11:19:24,022 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions.
[2020-04-18 11:19:24,022 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:19:24,022 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [512132455]
[2020-04-18 11:19:24,022 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:19:24,023 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:19:24,023 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [512132455]
[2020-04-18 11:19:24,028 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 11:19:24,028 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:19:24,029 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:19:24,029 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:19:24,029 INFO  L87              Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states.
[2020-04-18 11:19:24,054 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,057 INFO  L93              Difference]: Finished difference Result 136 states and 297 transitions.
[2020-04-18 11:19:24,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-04-18 11:19:24,058 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-04-18 11:19:24,058 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:19:24,059 INFO  L225             Difference]: With dead ends: 136
[2020-04-18 11:19:24,060 INFO  L226             Difference]: Without dead ends: 136
[2020-04-18 11:19:24,061 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:19:24,062 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2020-04-18 11:19:24,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136.
[2020-04-18 11:19:24,072 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 136 states.
[2020-04-18 11:19:24,072 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions.
[2020-04-18 11:19:24,073 INFO  L78                 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12
[2020-04-18 11:19:24,073 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:19:24,073 INFO  L479      AbstractCegarLoop]: Abstraction has 136 states and 297 transitions.
[2020-04-18 11:19:24,075 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 11:19:24,075 INFO  L276                IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions.
[2020-04-18 11:19:24,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:19:24,076 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:19:24,076 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:19:24,076 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:19:24,077 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,077 INFO  L82        PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times
[2020-04-18 11:19:24,077 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:19:24,077 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [1896529225]
[2020-04-18 11:19:24,078 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,082 INFO  L259    McrAutomatonBuilder]: Finished intersection with 82 states and 174 transitions.
[2020-04-18 11:19:24,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states.
[2020-04-18 11:19:24,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:19:24,084 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:19:24,084 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,084 INFO  L82        PathProgramCache]: Analyzing trace with hash 913743744, now seen corresponding path program 2 times
[2020-04-18 11:19:24,084 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,085 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717970930]
[2020-04-18 11:19:24,085 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,113 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 11:19:24,113 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717970930]
[2020-04-18 11:19:24,113 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,114 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:19:24,114 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,115 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,118 INFO  L259    McrAutomatonBuilder]: Finished intersection with 34 states and 57 transitions.
[2020-04-18 11:19:24,118 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,121 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:19:24,122 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:19:24,122 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:19:24,122 INFO  L87              Difference]: Start difference. First operand 82 states. Second operand 3 states.
[2020-04-18 11:19:24,129 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,129 INFO  L93              Difference]: Finished difference Result 103 states and 206 transitions.
[2020-04-18 11:19:24,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 206 transitions.
[2020-04-18 11:19:24,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:19:24,130 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:19:24,131 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,131 INFO  L82        PathProgramCache]: Analyzing trace with hash 1477639104, now seen corresponding path program 3 times
[2020-04-18 11:19:24,131 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,131 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782373711]
[2020-04-18 11:19:24,132 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,179 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 11:19:24,179 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782373711]
[2020-04-18 11:19:24,179 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,180 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:19:24,180 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,182 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,185 INFO  L259    McrAutomatonBuilder]: Finished intersection with 40 states and 59 transitions.
[2020-04-18 11:19:24,185 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,257 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times.
[2020-04-18 11:19:24,257 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:19:24,257 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:19:24,258 INFO  L87              Difference]: Start difference. First operand 103 states and 206 transitions. Second operand 6 states.
[2020-04-18 11:19:24,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,280 INFO  L93              Difference]: Finished difference Result 106 states and 208 transitions.
[2020-04-18 11:19:24,280 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 208 transitions.
[2020-04-18 11:19:24,281 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:19:24,281 INFO  L105                    Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:19:24,281 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,281 INFO  L82        PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 4 times
[2020-04-18 11:19:24,281 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,282 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144089916]
[2020-04-18 11:19:24,282 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,332 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 11:19:24,333 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144089916]
[2020-04-18 11:19:24,333 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,333 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:19:24,334 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,335 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,338 INFO  L259    McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions.
[2020-04-18 11:19:24,338 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,387 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:19:24,387 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:19:24,387 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:19:24,388 INFO  L87              Difference]: Start difference. First operand 106 states and 208 transitions. Second operand 7 states.
[2020-04-18 11:19:24,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,411 INFO  L93              Difference]: Finished difference Result 106 states and 208 transitions.
[2020-04-18 11:19:24,412 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 208 transitions.
[2020-04-18 11:19:24,412 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:19:24,412 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1896529225]
[2020-04-18 11:19:24,413 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:19:24,413 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:19:24,413 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1896529225]
[2020-04-18 11:19:24,413 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 11:19:24,414 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:19:24,414 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:19:24,414 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:19:24,414 INFO  L87              Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 7 states.
[2020-04-18 11:19:24,449 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,450 INFO  L93              Difference]: Finished difference Result 109 states and 243 transitions.
[2020-04-18 11:19:24,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-04-18 11:19:24,450 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 15
[2020-04-18 11:19:24,450 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:19:24,451 INFO  L225             Difference]: With dead ends: 109
[2020-04-18 11:19:24,451 INFO  L226             Difference]: Without dead ends: 109
[2020-04-18 11:19:24,452 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:19:24,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2020-04-18 11:19:24,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109.
[2020-04-18 11:19:24,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 109 states.
[2020-04-18 11:19:24,457 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions.
[2020-04-18 11:19:24,457 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15
[2020-04-18 11:19:24,457 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:19:24,457 INFO  L479      AbstractCegarLoop]: Abstraction has 109 states and 243 transitions.
[2020-04-18 11:19:24,458 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 11:19:24,458 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions.
[2020-04-18 11:19:24,458 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:24,458 INFO  L417         BasicCegarLoop]: Found error trace
[2020-04-18 11:19:24,458 INFO  L425         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:19:24,459 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:19:24,459 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,459 INFO  L82        PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times
[2020-04-18 11:19:24,459 INFO  L163   FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:19:24,460 INFO  L354   FreeRefinementEngine]: Using trace check StrategyModuleMcr [966554392]
[2020-04-18 11:19:24,460 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,468 INFO  L259    McrAutomatonBuilder]: Finished intersection with 298 states and 864 transitions.
[2020-04-18 11:19:24,487 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states.
[2020-04-18 11:19:24,489 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:24,489 INFO  L105                    Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:19:24,489 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,489 INFO  L82        PathProgramCache]: Analyzing trace with hash -162656142, now seen corresponding path program 2 times
[2020-04-18 11:19:24,490 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,490 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437868208]
[2020-04-18 11:19:24,490 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,513 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 11:19:24,513 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437868208]
[2020-04-18 11:19:24,514 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,514 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:19:24,514 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,516 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,527 INFO  L259    McrAutomatonBuilder]: Finished intersection with 88 states and 210 transitions.
[2020-04-18 11:19:24,527 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,531 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:19:24,531 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:19:24,531 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:19:24,532 INFO  L87              Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-04-18 11:19:24,543 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,543 INFO  L93              Difference]: Finished difference Result 409 states and 1127 transitions.
[2020-04-18 11:19:24,543 INFO  L276                IsEmpty]: Start isEmpty. Operand 409 states and 1127 transitions.
[2020-04-18 11:19:24,545 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:24,545 INFO  L105                    Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:19:24,545 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,546 INFO  L82        PathProgramCache]: Analyzing trace with hash 1226918962, now seen corresponding path program 3 times
[2020-04-18 11:19:24,546 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,546 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837536329]
[2020-04-18 11:19:24,546 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,573 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 11:19:24,574 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837536329]
[2020-04-18 11:19:24,574 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,574 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:19:24,574 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,576 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,588 INFO  L259    McrAutomatonBuilder]: Finished intersection with 103 states and 185 transitions.
[2020-04-18 11:19:24,588 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,631 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times.
[2020-04-18 11:19:24,632 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:19:24,632 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:19:24,632 INFO  L87              Difference]: Start difference. First operand 409 states and 1127 transitions. Second operand 6 states.
[2020-04-18 11:19:24,691 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,691 INFO  L93              Difference]: Finished difference Result 439 states and 1174 transitions.
[2020-04-18 11:19:24,692 INFO  L276                IsEmpty]: Start isEmpty. Operand 439 states and 1174 transitions.
[2020-04-18 11:19:24,693 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:24,694 INFO  L105                    Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:19:24,694 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,694 INFO  L82        PathProgramCache]: Analyzing trace with hash 687587698, now seen corresponding path program 4 times
[2020-04-18 11:19:24,694 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,695 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693637840]
[2020-04-18 11:19:24,695 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,730 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 11:19:24,730 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693637840]
[2020-04-18 11:19:24,731 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,731 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:19:24,731 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,733 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,742 INFO  L259    McrAutomatonBuilder]: Finished intersection with 85 states and 149 transitions.
[2020-04-18 11:19:24,742 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,781 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:19:24,781 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:19:24,781 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:19:24,781 INFO  L87              Difference]: Start difference. First operand 439 states and 1174 transitions. Second operand 7 states.
[2020-04-18 11:19:24,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,834 INFO  L93              Difference]: Finished difference Result 442 states and 1176 transitions.
[2020-04-18 11:19:24,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 442 states and 1176 transitions.
[2020-04-18 11:19:24,836 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:24,836 INFO  L105                    Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:19:24,836 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,836 INFO  L82        PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 5 times
[2020-04-18 11:19:24,836 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,837 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449516190]
[2020-04-18 11:19:24,837 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,881 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 11:19:24,882 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449516190]
[2020-04-18 11:19:24,882 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,882 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:19:24,882 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:24,884 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:24,891 INFO  L259    McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions.
[2020-04-18 11:19:24,891 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:24,907 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:19:24,907 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:19:24,908 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2020-04-18 11:19:24,908 INFO  L87              Difference]: Start difference. First operand 442 states and 1176 transitions. Second operand 4 states.
[2020-04-18 11:19:24,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:24,934 INFO  L93              Difference]: Finished difference Result 754 states and 1914 transitions.
[2020-04-18 11:19:24,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 754 states and 1914 transitions.
[2020-04-18 11:19:24,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:24,937 INFO  L105                    Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:19:24,937 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:24,937 INFO  L82        PathProgramCache]: Analyzing trace with hash 1082124346, now seen corresponding path program 6 times
[2020-04-18 11:19:24,937 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:24,938 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166273788]
[2020-04-18 11:19:24,938 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:24,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:24,997 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 11:19:24,997 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166273788]
[2020-04-18 11:19:24,998 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:24,998 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:19:24,998 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:25,000 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:25,009 INFO  L259    McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions.
[2020-04-18 11:19:25,009 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:25,023 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:19:25,023 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:19:25,024 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2020-04-18 11:19:25,024 INFO  L87              Difference]: Start difference. First operand 754 states and 1914 transitions. Second operand 4 states.
[2020-04-18 11:19:25,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:25,059 INFO  L93              Difference]: Finished difference Result 1362 states and 3282 transitions.
[2020-04-18 11:19:25,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 1362 states and 3282 transitions.
[2020-04-18 11:19:25,066 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:19:25,066 INFO  L105                    Mcr]: ---- MCR iteration 5 ----
[2020-04-18 11:19:25,067 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:19:25,067 INFO  L82        PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 7 times
[2020-04-18 11:19:25,067 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:19:25,068 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894604484]
[2020-04-18 11:19:25,068 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:19:25,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:19:25,150 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 11:19:25,150 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894604484]
[2020-04-18 11:19:25,151 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:19:25,151 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:19:25,151 INFO  L201    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:19:25,152 INFO  L256    McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:19:25,160 INFO  L259    McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions.
[2020-04-18 11:19:25,160 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:19:25,174 INFO  L356    McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:19:25,176 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:19:25,176 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2020-04-18 11:19:25,176 INFO  L87              Difference]: Start difference. First operand 1362 states and 3282 transitions. Second operand 4 states.
[2020-04-18 11:19:25,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:25,235 INFO  L93              Difference]: Finished difference Result 2462 states and 5638 transitions.
[2020-04-18 11:19:25,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 2462 states and 5638 transitions.
[2020-04-18 11:19:25,241 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:19:25,241 INFO  L354   FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [966554392]
[2020-04-18 11:19:25,242 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:19:25,242 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:19:25,242 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [966554392]
[2020-04-18 11:19:25,242 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-04-18 11:19:25,242 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:19:25,243 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-04-18 11:19:25,243 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2020-04-18 11:19:25,243 INFO  L87              Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 11 states.
[2020-04-18 11:19:25,762 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:19:25,763 INFO  L93              Difference]: Finished difference Result 240 states and 478 transitions.
[2020-04-18 11:19:25,763 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2020-04-18 11:19:25,763 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 18
[2020-04-18 11:19:25,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:19:25,763 INFO  L225             Difference]: With dead ends: 240
[2020-04-18 11:19:25,763 INFO  L226             Difference]: Without dead ends: 0
[2020-04-18 11:19:25,765 INFO  L678         BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=361, Invalid=1445, Unknown=0, NotChecked=0, Total=1806
[2020-04-18 11:19:25,765 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 11:19:25,765 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 11:19:25,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 11:19:25,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 11:19:25,765 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2020-04-18 11:19:25,765 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:19:25,766 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 11:19:25,766 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-04-18 11:19:25,766 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 11:19:25,766 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:19:25,771 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:19:25 BasicIcfg
[2020-04-18 11:19:25,771 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 11:19:25,775 INFO  L168              Benchmark]: Toolchain (without parser) took 5469.19 ms. Allocated memory was 137.4 MB in the beginning and 289.4 MB in the end (delta: 152.0 MB). Free memory was 101.2 MB in the beginning and 175.9 MB in the end (delta: -74.7 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,776 INFO  L168              Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,777 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 660.59 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 159.0 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,779 INFO  L168              Benchmark]: Boogie Procedure Inliner took 61.17 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 156.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,787 INFO  L168              Benchmark]: Boogie Preprocessor took 34.23 ms. Allocated memory is still 201.9 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,788 INFO  L168              Benchmark]: RCFGBuilder took 430.13 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 133.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,788 INFO  L168              Benchmark]: TraceAbstraction took 4256.68 ms. Allocated memory was 201.9 MB in the beginning and 289.4 MB in the end (delta: 87.6 MB). Free memory was 132.8 MB in the beginning and 175.9 MB in the end (delta: -43.1 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB.
[2020-04-18 11:19:25,797 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.45 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 660.59 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 159.0 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 61.17 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 156.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 34.23 ms. Allocated memory is still 201.9 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 430.13 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 133.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 4256.68 ms. Allocated memory was 201.9 MB in the beginning and 289.4 MB in the end (delta: 87.6 MB). Free memory was 132.8 MB in the beginning and 175.9 MB in the end (delta: -43.1 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    LbeTime: 1.5s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 692 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 104 SDtfs, 207 SDslu, 238 SDs, 0 SdLazy, 188 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 198 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 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...