/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/safe035_rmo.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 11:27:13,839 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 11:27:13,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 11:27:13,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 11:27:13,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 11:27:13,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 11:27:13,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 11:27:13,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 11:27:13,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 11:27:13,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-04-18 11:27:13,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 11:27:13,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 11:27:13,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 11:27:13,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 11:27:13,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 11:27:13,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 11:27:13,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 11:27:13,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 11:27:13,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 11:27:13,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 11:27:13,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 11:27:13,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 11:27:13,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 11:27:13,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 11:27:13,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 11:27:13,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-18 11:27:13,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-18 11:27:13,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-18 11:27:13,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 11:27:13,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-18 11:27:13,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-18 11:27:13,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-04-18 11:27:13,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 11:27:13,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 11:27:13,920 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 11:27:13,959 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 11:27:13,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 11:27:13,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 11:27:13,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 11:27:13,961 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 11:27:13,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 11:27:13,962 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 11:27:13,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 11:27:13,962 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 11:27:13,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 11:27:13,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 11:27:13,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 11:27:13,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 11:27:13,963 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 11:27:13,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 11:27:13,963 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 11:27:13,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 11:27:13,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 11:27:13,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 11:27:13,965 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 11:27:13,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 11:27:13,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 11:27:13,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 11:27:13,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 11:27:13,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 11:27:13,966 INFO L138 SettingsManager]: * Trace refinement strategy=MCR
[2020-04-18 11:27:13,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 11:27:13,967 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 11:27:13,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 11:27:13,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 11:27:14,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 11:27:14,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 11:27:14,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 11:27:14,282 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 11:27:14,282 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 11:27:14,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i
[2020-04-18 11:27:14,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72b5b9022/ed4a584578dd4598b28b1f9df75d02cc/FLAG61123d5af
[2020-04-18 11:27:14,950 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 11:27:14,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i
[2020-04-18 11:27:14,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72b5b9022/ed4a584578dd4598b28b1f9df75d02cc/FLAG61123d5af
[2020-04-18 11:27:15,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72b5b9022/ed4a584578dd4598b28b1f9df75d02cc
[2020-04-18 11:27:15,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 11:27:15,284 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 11:27:15,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 11:27:15,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 11:27:15,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 11:27:15,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:27:15" (1/1) ...
[2020-04-18 11:27:15,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a908ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:15, skipping insertion in model container
[2020-04-18 11:27:15,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:27:15" (1/1) ...
[2020-04-18 11:27:15,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 11:27:15,366 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 11:27:15,855 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:27:15,870 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 11:27:15,933 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:27:16,037 INFO L208 MainTranslator]: Completed translation
[2020-04-18 11:27:16,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16 WrapperNode
[2020-04-18 11:27:16,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 11:27:16,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 11:27:16,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 11:27:16,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 11:27:16,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 11:27:16,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 11:27:16,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 11:27:16,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 11:27:16,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (1/1) ...
[2020-04-18 11:27:16,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 11:27:16,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 11:27:16,121 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 11:27:16,121 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 11:27:16,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (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 11:27:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 11:27:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 11:27:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 11:27:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 11:27:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 11:27:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 11:27:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 11:27:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 11:27:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 11:27:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 11:27:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 11:27:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 11:27:16,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 11:27:16,201 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 11:27:16,616 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 11:27:16,617 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 11:27:16,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:27:16 BoogieIcfgContainer
[2020-04-18 11:27:16,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 11:27:16,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 11:27:16,624 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 11:27:16,628 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 11:27:16,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:27:15" (1/3) ...
[2020-04-18 11:27:16,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfdb4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:27:16, skipping insertion in model container
[2020-04-18 11:27:16,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:16" (2/3) ...
[2020-04-18 11:27:16,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfdb4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:27:16, skipping insertion in model container
[2020-04-18 11:27:16,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:27:16" (3/3) ...
[2020-04-18 11:27:16,636 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i
[2020-04-18 11:27:16,646 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 11:27:16,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 11:27:16,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 11:27:16,654 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 11:27:16,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,681 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,682 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,684 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,685 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,687 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,688 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,689 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,689 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,696 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,697 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,697 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,697 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,712 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,712 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,713 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,723 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,724 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,724 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,724 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:16,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 11:27:16,762 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 11:27:16,763 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 11:27:16,763 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 11:27:16,763 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 11:27:16,763 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 11:27:16,763 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 11:27:16,764 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 11:27:16,764 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 11:27:16,782 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-04-18 11:27:16,785 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 11:27:16,836 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 11:27:16,836 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:27:16,844 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-18 11:27:16,846 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 11:27:16,867 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 11:27:16,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:27:16,868 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-18 11:27:16,870 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-18 11:27:16,871 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-18 11:27:18,716 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414
[2020-04-18 11:27:18,716 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56
[2020-04-18 11:27:18,720 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow
[2020-04-18 11:27:18,752 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-04-18 11:27:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-04-18 11:27:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:27:18,766 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:18,767 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:18,767 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:18,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:18,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times
[2020-04-18 11:27:18,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:18,783 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1357405759]
[2020-04-18 11:27:18,808 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:18,825 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:27:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 11:27:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:27:18,831 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 2 times
[2020-04-18 11:27:18,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:18,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908995829]
[2020-04-18 11:27:18,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,127 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 11:27:19,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908995829]
[2020-04-18 11:27:19,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 11:27:19,130 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,130 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,133 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:27:19,133 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,140 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:19,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,146 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states.
[2020-04-18 11:27:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,151 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2020-04-18 11:27:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2020-04-18 11:27:19,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:19,152 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1357405759]
[2020-04-18 11:27:19,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:19,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 11:27:19,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1357405759]
[2020-04-18 11:27:19,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:27:19,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:19,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,160 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-04-18 11:27:19,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,241 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions.
[2020-04-18 11:27:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 11:27:19,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-04-18 11:27:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:19,271 INFO L225 Difference]: With dead ends: 294
[2020-04-18 11:27:19,272 INFO L226 Difference]: Without dead ends: 230
[2020-04-18 11:27:19,283 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2020-04-18 11:27:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230.
[2020-04-18 11:27:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states.
[2020-04-18 11:27:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions.
[2020-04-18 11:27:19,354 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8
[2020-04-18 11:27:19,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:19,356 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions.
[2020-04-18 11:27:19,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:27:19,356 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions.
[2020-04-18 11:27:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:27:19,357 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:19,357 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:19,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,358 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times
[2020-04-18 11:27:19,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:19,358 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [697103242]
[2020-04-18 11:27:19,359 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,360 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 11:27:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 11:27:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:27:19,361 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,361 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 2 times
[2020-04-18 11:27:19,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:19,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248380218]
[2020-04-18 11:27:19,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,448 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 11:27:19,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248380218]
[2020-04-18 11:27:19,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 11:27:19,449 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,450 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,452 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 11:27:19,452 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,457 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:19,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,458 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states.
[2020-04-18 11:27:19,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,458 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions.
[2020-04-18 11:27:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions.
[2020-04-18 11:27:19,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:19,459 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [697103242]
[2020-04-18 11:27:19,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:19,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 11:27:19,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [697103242]
[2020-04-18 11:27:19,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:27:19,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:19,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,461 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states.
[2020-04-18 11:27:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,475 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions.
[2020-04-18 11:27:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 11:27:19,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-04-18 11:27:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:19,478 INFO L225 Difference]: With dead ends: 202
[2020-04-18 11:27:19,479 INFO L226 Difference]: Without dead ends: 202
[2020-04-18 11:27:19,480 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 11:27:19,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-04-18 11:27:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-04-18 11:27:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states.
[2020-04-18 11:27:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions.
[2020-04-18 11:27:19,509 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9
[2020-04-18 11:27:19,510 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:19,510 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions.
[2020-04-18 11:27:19,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:27:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions.
[2020-04-18 11:27:19,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:27:19,511 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:19,512 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:19,512 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,512 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times
[2020-04-18 11:27:19,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:19,513 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1087143183]
[2020-04-18 11:27:19,513 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,514 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions.
[2020-04-18 11:27:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states.
[2020-04-18 11:27:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:27:19,515 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:19,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,515 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 2 times
[2020-04-18 11:27:19,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:19,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180118723]
[2020-04-18 11:27:19,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,587 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 11:27:19,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180118723]
[2020-04-18 11:27:19,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:19,589 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,589 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,591 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions.
[2020-04-18 11:27:19,591 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,603 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:19,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,604 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states.
[2020-04-18 11:27:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,616 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2020-04-18 11:27:19,617 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2020-04-18 11:27:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:27:19,617 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,617 INFO L82 PathProgramCache]: Analyzing trace with hash -53993097, now seen corresponding path program 3 times
[2020-04-18 11:27:19,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:19,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510656457]
[2020-04-18 11:27:19,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,690 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 11:27:19,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510656457]
[2020-04-18 11:27:19,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:19,692 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,693 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,694 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions.
[2020-04-18 11:27:19,694 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,698 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:19,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:19,699 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states.
[2020-04-18 11:27:19,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,702 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2020-04-18 11:27:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2020-04-18 11:27:19,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:19,703 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1087143183]
[2020-04-18 11:27:19,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:19,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:27:19,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1087143183]
[2020-04-18 11:27:19,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 11:27:19,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:19,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:27:19,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:19,705 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states.
[2020-04-18 11:27:19,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,727 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions.
[2020-04-18 11:27:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-18 11:27:19,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-04-18 11:27:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:19,730 INFO L225 Difference]: With dead ends: 266
[2020-04-18 11:27:19,730 INFO L226 Difference]: Without dead ends: 140
[2020-04-18 11:27:19,730 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2020-04-18 11:27:19,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2020-04-18 11:27:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states.
[2020-04-18 11:27:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions.
[2020-04-18 11:27:19,742 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10
[2020-04-18 11:27:19,742 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:19,742 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions.
[2020-04-18 11:27:19,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 11:27:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions.
[2020-04-18 11:27:19,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:19,743 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:19,743 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:19,744 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:19,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times
[2020-04-18 11:27:19,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:19,745 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [871343983]
[2020-04-18 11:27:19,761 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,762 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 47 transitions.
[2020-04-18 11:27:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2020-04-18 11:27:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:19,763 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1335752706, now seen corresponding path program 2 times
[2020-04-18 11:27:19,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:19,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139421731]
[2020-04-18 11:27:19,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,795 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 11:27:19,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139421731]
[2020-04-18 11:27:19,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:19,796 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,797 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,800 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 11:27:19,800 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,806 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:19,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:19,806 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states.
[2020-04-18 11:27:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,813 INFO L93 Difference]: Finished difference Result 38 states and 58 transitions.
[2020-04-18 11:27:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions.
[2020-04-18 11:27:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:19,814 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:19,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1336319106, now seen corresponding path program 3 times
[2020-04-18 11:27:19,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:19,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123031517]
[2020-04-18 11:27:19,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 11:27:19,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123031517]
[2020-04-18 11:27:19,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:19,848 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,849 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,851 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions.
[2020-04-18 11:27:19,851 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,856 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:19,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:19,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:19,856 INFO L87 Difference]: Start difference. First operand 38 states and 58 transitions. Second operand 3 states.
[2020-04-18 11:27:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,859 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions.
[2020-04-18 11:27:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions.
[2020-04-18 11:27:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:19,860 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:19,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 4 times
[2020-04-18 11:27:19,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:19,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962082091]
[2020-04-18 11:27:19,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:19,958 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 11:27:19,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962082091]
[2020-04-18 11:27:19,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:19,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:19,963 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:19,964 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:19,967 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions.
[2020-04-18 11:27:19,968 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:19,987 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:27:19,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:27:19,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:27:19,987 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand 4 states.
[2020-04-18 11:27:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:19,998 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions.
[2020-04-18 11:27:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions.
[2020-04-18 11:27:19,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:19,999 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [871343983]
[2020-04-18 11:27:20,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:20,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:27:20,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [871343983]
[2020-04-18 11:27:20,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 11:27:20,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:20,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:27:20,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:27:20,001 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 6 states.
[2020-04-18 11:27:20,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,197 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions.
[2020-04-18 11:27:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 11:27:20,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11
[2020-04-18 11:27:20,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:20,199 INFO L225 Difference]: With dead ends: 165
[2020-04-18 11:27:20,199 INFO L226 Difference]: Without dead ends: 113
[2020-04-18 11:27:20,200 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272
[2020-04-18 11:27:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2020-04-18 11:27:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2020-04-18 11:27:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states.
[2020-04-18 11:27:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions.
[2020-04-18 11:27:20,207 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11
[2020-04-18 11:27:20,207 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:20,207 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions.
[2020-04-18 11:27:20,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 11:27:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions.
[2020-04-18 11:27:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:20,208 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:20,208 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:20,209 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:20,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,209 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times
[2020-04-18 11:27:20,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:20,210 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1438915250]
[2020-04-18 11:27:20,210 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,211 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions.
[2020-04-18 11:27:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states.
[2020-04-18 11:27:20,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:20,212 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1541327102, now seen corresponding path program 2 times
[2020-04-18 11:27:20,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:20,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038399458]
[2020-04-18 11:27:20,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:20,239 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 11:27:20,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038399458]
[2020-04-18 11:27:20,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:20,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:20,241 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:20,242 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,244 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 26 transitions.
[2020-04-18 11:27:20,245 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:20,249 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:20,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:20,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:20,250 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states.
[2020-04-18 11:27:20,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,256 INFO L93 Difference]: Finished difference Result 49 states and 79 transitions.
[2020-04-18 11:27:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 79 transitions.
[2020-04-18 11:27:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:20,257 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:20,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1523780462, now seen corresponding path program 3 times
[2020-04-18 11:27:20,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:20,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34124302]
[2020-04-18 11:27:20,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:20,289 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 11:27:20,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34124302]
[2020-04-18 11:27:20,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:20,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:20,291 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:20,292 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,295 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions.
[2020-04-18 11:27:20,295 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:20,300 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:20,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:20,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:20,300 INFO L87 Difference]: Start difference. First operand 49 states and 79 transitions. Second operand 3 states.
[2020-04-18 11:27:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,304 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions.
[2020-04-18 11:27:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions.
[2020-04-18 11:27:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:20,304 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:20,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,305 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 4 times
[2020-04-18 11:27:20,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:20,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173785529]
[2020-04-18 11:27:20,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:20,389 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 11:27:20,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173785529]
[2020-04-18 11:27:20,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:20,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:27:20,390 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:20,391 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,393 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions.
[2020-04-18 11:27:20,393 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:20,416 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:20,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:27:20,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:27:20,416 INFO L87 Difference]: Start difference. First operand 55 states and 84 transitions. Second operand 5 states.
[2020-04-18 11:27:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,447 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions.
[2020-04-18 11:27:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions.
[2020-04-18 11:27:20,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:20,448 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1438915250]
[2020-04-18 11:27:20,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:20,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:27:20,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1438915250]
[2020-04-18 11:27:20,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 11:27:20,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:20,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:27:20,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-04-18 11:27:20,449 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 7 states.
[2020-04-18 11:27:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,690 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions.
[2020-04-18 11:27:20,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2020-04-18 11:27:20,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12
[2020-04-18 11:27:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:20,691 INFO L225 Difference]: With dead ends: 111
[2020-04-18 11:27:20,692 INFO L226 Difference]: Without dead ends: 80
[2020-04-18 11:27:20,692 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380
[2020-04-18 11:27:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2020-04-18 11:27:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2020-04-18 11:27:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states.
[2020-04-18 11:27:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions.
[2020-04-18 11:27:20,697 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12
[2020-04-18 11:27:20,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:20,698 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions.
[2020-04-18 11:27:20,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 11:27:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions.
[2020-04-18 11:27:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:20,698 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:20,699 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:20,699 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times
[2020-04-18 11:27:20,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:20,700 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1401639044]
[2020-04-18 11:27:20,700 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,702 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 134 transitions.
[2020-04-18 11:27:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states.
[2020-04-18 11:27:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:20,705 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:20,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,705 INFO L82 PathProgramCache]: Analyzing trace with hash -605969466, now seen corresponding path program 2 times
[2020-04-18 11:27:20,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:20,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305691490]
[2020-04-18 11:27:20,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:20,741 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 11:27:20,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305691490]
[2020-04-18 11:27:20,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:20,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:20,743 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:20,771 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,775 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 48 transitions.
[2020-04-18 11:27:20,776 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:20,783 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:27:20,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:20,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:20,784 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states.
[2020-04-18 11:27:20,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,792 INFO L93 Difference]: Finished difference Result 105 states and 205 transitions.
[2020-04-18 11:27:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 205 transitions.
[2020-04-18 11:27:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:20,792 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:20,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,793 INFO L82 PathProgramCache]: Analyzing trace with hash -588422826, now seen corresponding path program 3 times
[2020-04-18 11:27:20,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:20,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736921034]
[2020-04-18 11:27:20,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:20,831 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 11:27:20,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736921034]
[2020-04-18 11:27:20,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:20,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:20,832 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:20,833 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,838 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions.
[2020-04-18 11:27:20,838 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:20,851 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:20,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:20,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:20,852 INFO L87 Difference]: Start difference. First operand 105 states and 205 transitions. Second operand 3 states.
[2020-04-18 11:27:20,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:20,855 INFO L93 Difference]: Finished difference Result 119 states and 222 transitions.
[2020-04-18 11:27:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 222 transitions.
[2020-04-18 11:27:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:20,856 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:20,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 4 times
[2020-04-18 11:27:20,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:20,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009892197]
[2020-04-18 11:27:20,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:20,944 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 11:27:20,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009892197]
[2020-04-18 11:27:20,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:20,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:27:20,946 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:20,947 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:20,953 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions.
[2020-04-18 11:27:20,953 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:20,983 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:20,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:27:20,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-04-18 11:27:20,984 INFO L87 Difference]: Start difference. First operand 119 states and 222 transitions. Second operand 6 states.
[2020-04-18 11:27:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,052 INFO L93 Difference]: Finished difference Result 119 states and 222 transitions.
[2020-04-18 11:27:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 222 transitions.
[2020-04-18 11:27:21,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:21,053 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1401639044]
[2020-04-18 11:27:21,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:21,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:27:21,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1401639044]
[2020-04-18 11:27:21,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 11:27:21,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:21,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 11:27:21,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2020-04-18 11:27:21,055 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 8 states.
[2020-04-18 11:27:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,228 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions.
[2020-04-18 11:27:21,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 11:27:21,229 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14
[2020-04-18 11:27:21,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:21,229 INFO L225 Difference]: With dead ends: 75
[2020-04-18 11:27:21,229 INFO L226 Difference]: Without dead ends: 66
[2020-04-18 11:27:21,230 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420
[2020-04-18 11:27:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-04-18 11:27:21,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2020-04-18 11:27:21,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-04-18 11:27:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions.
[2020-04-18 11:27:21,233 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14
[2020-04-18 11:27:21,233 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:21,234 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions.
[2020-04-18 11:27:21,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 11:27:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions.
[2020-04-18 11:27:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:21,234 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:21,234 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:21,235 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:21,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:21,235 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times
[2020-04-18 11:27:21,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:21,235 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1925094737]
[2020-04-18 11:27:21,236 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:21,241 INFO L259 McrAutomatonBuilder]: Finished intersection with 234 states and 656 transitions.
[2020-04-18 11:27:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states.
[2020-04-18 11:27:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:21,245 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:21,245 INFO L82 PathProgramCache]: Analyzing trace with hash -689704600, now seen corresponding path program 2 times
[2020-04-18 11:27:21,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:21,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683249866]
[2020-04-18 11:27:21,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:21,276 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 11:27:21,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683249866]
[2020-04-18 11:27:21,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:21,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:21,277 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:21,279 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:21,286 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 90 transitions.
[2020-04-18 11:27:21,286 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:21,291 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:27:21,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:21,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:21,292 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states.
[2020-04-18 11:27:21,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,307 INFO L93 Difference]: Finished difference Result 390 states and 1057 transitions.
[2020-04-18 11:27:21,307 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 1057 transitions.
[2020-04-18 11:27:21,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:21,308 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:21,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:21,309 INFO L82 PathProgramCache]: Analyzing trace with hash 595608656, now seen corresponding path program 3 times
[2020-04-18 11:27:21,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:21,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763684166]
[2020-04-18 11:27:21,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:21,342 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 11:27:21,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763684166]
[2020-04-18 11:27:21,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:21,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:21,343 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:21,346 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:21,352 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 76 transitions.
[2020-04-18 11:27:21,352 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:21,359 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:21,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:21,363 INFO L87 Difference]: Start difference. First operand 390 states and 1057 transitions. Second operand 3 states.
[2020-04-18 11:27:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,371 INFO L93 Difference]: Finished difference Result 446 states and 1167 transitions.
[2020-04-18 11:27:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 1167 transitions.
[2020-04-18 11:27:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:21,374 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:21,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:21,374 INFO L82 PathProgramCache]: Analyzing trace with hash -901910694, now seen corresponding path program 4 times
[2020-04-18 11:27:21,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:21,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415758025]
[2020-04-18 11:27:21,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:21,408 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 11:27:21,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415758025]
[2020-04-18 11:27:21,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:21,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:27:21,410 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:21,411 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:21,420 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 63 transitions.
[2020-04-18 11:27:21,421 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:21,440 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:27:21,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:27:21,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:27:21,442 INFO L87 Difference]: Start difference. First operand 446 states and 1167 transitions. Second operand 4 states.
[2020-04-18 11:27:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,467 INFO L93 Difference]: Finished difference Result 638 states and 1577 transitions.
[2020-04-18 11:27:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1577 transitions.
[2020-04-18 11:27:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:21,469 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:27:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash -901846014, now seen corresponding path program 5 times
[2020-04-18 11:27:21,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:21,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869021475]
[2020-04-18 11:27:21,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:21,526 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 11:27:21,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869021475]
[2020-04-18 11:27:21,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:21,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 11:27:21,527 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:21,529 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:21,538 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 52 transitions.
[2020-04-18 11:27:21,538 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:21,578 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:21,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:27:21,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:27:21,579 INFO L87 Difference]: Start difference. First operand 638 states and 1577 transitions. Second operand 6 states.
[2020-04-18 11:27:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,696 INFO L93 Difference]: Finished difference Result 644 states and 1580 transitions.
[2020-04-18 11:27:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1580 transitions.
[2020-04-18 11:27:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:21,698 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:27:21,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:21,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 6 times
[2020-04-18 11:27:21,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:21,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460953662]
[2020-04-18 11:27:21,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:21,758 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 11:27:21,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460953662]
[2020-04-18 11:27:21,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:21,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:27:21,762 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:21,764 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:21,776 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 57 transitions.
[2020-04-18 11:27:21,776 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:21,860 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times.
[2020-04-18 11:27:21,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:27:21,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240
[2020-04-18 11:27:21,861 INFO L87 Difference]: Start difference. First operand 644 states and 1580 transitions. Second operand 5 states.
[2020-04-18 11:27:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:21,893 INFO L93 Difference]: Finished difference Result 1048 states and 2378 transitions.
[2020-04-18 11:27:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 2378 transitions.
[2020-04-18 11:27:21,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:21,897 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1925094737]
[2020-04-18 11:27:21,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:21,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:27:21,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1925094737]
[2020-04-18 11:27:21,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-04-18 11:27:21,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:21,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-04-18 11:27:21,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272
[2020-04-18 11:27:21,924 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 13 states.
[2020-04-18 11:27:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:22,820 INFO L93 Difference]: Finished difference Result 103 states and 198 transitions.
[2020-04-18 11:27:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states.
[2020-04-18 11:27:22,820 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17
[2020-04-18 11:27:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:22,821 INFO L225 Difference]: With dead ends: 103
[2020-04-18 11:27:22,821 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 11:27:22,822 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=655, Invalid=2767, Unknown=0, NotChecked=0, Total=3422
[2020-04-18 11:27:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 11:27:22,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 11:27:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 11:27:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 11:27:22,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-04-18 11:27:22,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:22,823 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 11:27:22,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-04-18 11:27:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 11:27:22,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:22,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:27:22 BasicIcfg
[2020-04-18 11:27:22,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 11:27:22,829 INFO L168 Benchmark]: Toolchain (without parser) took 7565.81 ms. Allocated memory was 138.9 MB in the beginning and 289.9 MB in the end (delta: 151.0 MB). Free memory was 100.7 MB in the beginning and 127.8 MB in the end (delta: -27.1 MB). Peak memory consumption was 123.9 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,830 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.7 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.06 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 98.9 MB in the beginning and 157.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.47 ms. Allocated memory is still 200.8 MB. Free memory was 157.8 MB in the beginning and 155.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,831 INFO L168 Benchmark]: Boogie Preprocessor took 26.80 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,832 INFO L168 Benchmark]: RCFGBuilder took 501.44 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 131.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,833 INFO L168 Benchmark]: TraceAbstraction took 6202.86 ms. Allocated memory was 200.8 MB in the beginning and 289.9 MB in the end (delta: 89.1 MB). Free memory was 131.4 MB in the beginning and 127.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:22,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.7 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 753.06 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 98.9 MB in the beginning and 157.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 55.47 ms. Allocated memory is still 200.8 MB. Free memory was 157.8 MB in the beginning and 155.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 26.80 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 501.44 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 131.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 6202.86 ms. Allocated memory was 200.8 MB in the beginning and 289.9 MB in the end (delta: 89.1 MB). Free memory was 131.4 MB in the beginning and 127.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 643 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 TotalNumberOfCompositions
- PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 132 SDtfs, 233 SDslu, 298 SDs, 0 SdLazy, 495 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...