/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_tso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 11:27:25,019 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 11:27:25,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 11:27:25,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 11:27:25,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 11:27:25,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 11:27:25,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 11:27:25,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 11:27:25,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2020-04-18 11:27:25,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 11:27:25,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 11:27:25,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 11:27:25,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 11:27:25,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 11:27:25,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 11:27:25,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 11:27:25,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 11:27:25,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 11:27:25,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 11:27:25,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 11:27:25,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 11:27:25,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 11:27:25,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 11:27:25,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 11:27:25,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-18 11:27:25,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-04-18 11:27:25,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 11:27:25,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2020-04-18 11:27:25,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-04-18 11:27:25,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 11:27:25,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 11:27:25,100 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 11:27:25,132 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 11:27:25,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 11:27:25,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 11:27:25,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 11:27:25,134 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 11:27:25,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 11:27:25,135 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 11:27:25,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 11:27:25,135 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 11:27:25,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 11:27:25,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 11:27:25,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 11:27:25,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 11:27:25,136 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 11:27:25,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 11:27:25,136 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 11:27:25,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 11:27:25,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 11:27:25,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 11:27:25,137 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 11:27:25,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 11:27:25,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 11:27:25,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 11:27:25,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 11:27:25,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 11:27:25,138 INFO L138 SettingsManager]: * Trace refinement strategy=MCR
[2020-04-18 11:27:25,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 11:27:25,139 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 11:27:25,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 11:27:25,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 11:27:25,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 11:27:25,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 11:27:25,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 11:27:25,446 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 11:27:25,446 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 11:27:25,448 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i
[2020-04-18 11:27:25,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5612713/40d6cde65ffb472097ed212fa7d10c90/FLAG4ef08b04e
[2020-04-18 11:27:26,075 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 11:27:26,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i
[2020-04-18 11:27:26,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5612713/40d6cde65ffb472097ed212fa7d10c90/FLAG4ef08b04e
[2020-04-18 11:27:26,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5612713/40d6cde65ffb472097ed212fa7d10c90
[2020-04-18 11:27:26,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 11:27:26,373 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 11:27:26,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 11:27:26,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 11:27:26,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 11:27:26,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:27:26" (1/1) ...
[2020-04-18 11:27:26,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5643b74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:26, skipping insertion in model container
[2020-04-18 11:27:26,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:27:26" (1/1) ...
[2020-04-18 11:27:26,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 11:27:26,446 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 11:27:26,989 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:27:27,006 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 11:27:27,067 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:27:27,140 INFO L208 MainTranslator]: Completed translation
[2020-04-18 11:27:27,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27 WrapperNode
[2020-04-18 11:27:27,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 11:27:27,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 11:27:27,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 11:27:27,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 11:27:27,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 11:27:27,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 11:27:27,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 11:27:27,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 11:27:27,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (1/1) ...
[2020-04-18 11:27:27,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 11:27:27,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 11:27:27,220 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 11:27:27,225 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 11:27:27,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (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 11:27:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 11:27:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 11:27:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 11:27:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 11:27:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 11:27:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 11:27:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 11:27:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 11:27:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 11:27:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 11:27:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 11:27:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 11:27:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 11:27:27,289 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 11:27:27,641 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 11:27:27,642 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 11:27:27,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:27:27 BoogieIcfgContainer
[2020-04-18 11:27:27,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 11:27:27,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 11:27:27,648 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 11:27:27,651 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 11:27:27,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:27:26" (1/3) ...
[2020-04-18 11:27:27,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c17cd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:27:27, skipping insertion in model container
[2020-04-18 11:27:27,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:27:27" (2/3) ...
[2020-04-18 11:27:27,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c17cd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:27:27, skipping insertion in model container
[2020-04-18 11:27:27,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:27:27" (3/3) ...
[2020-04-18 11:27:27,655 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i
[2020-04-18 11:27:27,665 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 11:27:27,665 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 11:27:27,673 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 11:27:27,674 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 11:27:27,702 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,702 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,703 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,703 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,704 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,704 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,705 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,705 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,705 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,705 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,706 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,706 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,706 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,707 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,707 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,707 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,708 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,708 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,712 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,713 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,713 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,713 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,720 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,720 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,721 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,721 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,724 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,724 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,724 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,724 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:27:27,744 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 11:27:27,763 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 11:27:27,764 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 11:27:27,764 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 11:27:27,764 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 11:27:27,764 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 11:27:27,764 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 11:27:27,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 11:27:27,765 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 11:27:27,781 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-04-18 11:27:27,783 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 11:27:27,830 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 11:27:27,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:27:27,835 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 11:27:27,838 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 11:27:27,860 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 11:27:27,860 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:27:27,861 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 11:27:27,864 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-18 11:27:27,865 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-18 11:27:29,800 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414
[2020-04-18 11:27:29,800 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56
[2020-04-18 11:27:29,804 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow
[2020-04-18 11:27:29,831 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-04-18 11:27:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-04-18 11:27:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:27:29,842 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:29,842 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:29,843 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times
[2020-04-18 11:27:29,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:29,857 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1001675439]
[2020-04-18 11:27:29,874 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:29,888 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:27:29,890 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 11:27:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:27:29,891 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:29,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:29,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 2 times
[2020-04-18 11:27:29,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:29,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787898788]
[2020-04-18 11:27:29,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,114 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 11:27:30,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787898788]
[2020-04-18 11:27:30,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 11:27:30,118 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,120 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,125 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:27:30,126 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,133 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:30,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:30,140 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states.
[2020-04-18 11:27:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,144 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2020-04-18 11:27:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2020-04-18 11:27:30,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:30,146 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1001675439]
[2020-04-18 11:27:30,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:30,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 11:27:30,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1001675439]
[2020-04-18 11:27:30,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:27:30,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:30,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:30,155 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-04-18 11:27:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,212 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions.
[2020-04-18 11:27:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 11:27:30,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-04-18 11:27:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:30,244 INFO L225 Difference]: With dead ends: 294
[2020-04-18 11:27:30,244 INFO L226 Difference]: Without dead ends: 230
[2020-04-18 11:27:30,253 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 11:27:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2020-04-18 11:27:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230.
[2020-04-18 11:27:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states.
[2020-04-18 11:27:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions.
[2020-04-18 11:27:30,326 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8
[2020-04-18 11:27:30,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:30,327 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions.
[2020-04-18 11:27:30,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:27:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions.
[2020-04-18 11:27:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:27:30,329 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:30,329 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:30,330 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:30,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,330 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times
[2020-04-18 11:27:30,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:30,331 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1358786015]
[2020-04-18 11:27:30,331 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,332 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 11:27:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 11:27:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:27:30,334 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:30,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,334 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 2 times
[2020-04-18 11:27:30,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:30,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098695609]
[2020-04-18 11:27:30,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,428 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 11:27:30,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098695609]
[2020-04-18 11:27:30,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 11:27:30,429 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,430 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,432 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 11:27:30,432 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,436 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:30,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:30,437 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states.
[2020-04-18 11:27:30,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,438 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions.
[2020-04-18 11:27:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions.
[2020-04-18 11:27:30,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:30,439 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1358786015]
[2020-04-18 11:27:30,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:30,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 11:27:30,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1358786015]
[2020-04-18 11:27:30,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:27:30,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:30,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:30,441 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states.
[2020-04-18 11:27:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,449 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions.
[2020-04-18 11:27:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 11:27:30,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-04-18 11:27:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:30,451 INFO L225 Difference]: With dead ends: 202
[2020-04-18 11:27:30,452 INFO L226 Difference]: Without dead ends: 202
[2020-04-18 11:27:30,453 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 11:27:30,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-04-18 11:27:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-04-18 11:27:30,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states.
[2020-04-18 11:27:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions.
[2020-04-18 11:27:30,470 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9
[2020-04-18 11:27:30,471 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:30,471 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions.
[2020-04-18 11:27:30,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:27:30,471 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions.
[2020-04-18 11:27:30,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:27:30,472 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:30,473 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:30,473 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,473 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times
[2020-04-18 11:27:30,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:30,474 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [226763941]
[2020-04-18 11:27:30,475 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,475 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions.
[2020-04-18 11:27:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states.
[2020-04-18 11:27:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:27:30,477 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,477 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 2 times
[2020-04-18 11:27:30,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:30,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116010272]
[2020-04-18 11:27:30,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,528 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 11:27:30,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116010272]
[2020-04-18 11:27:30,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:30,529 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,530 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,532 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions.
[2020-04-18 11:27:30,532 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,540 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:30,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:30,541 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states.
[2020-04-18 11:27:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,548 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2020-04-18 11:27:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2020-04-18 11:27:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:27:30,549 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,550 INFO L82 PathProgramCache]: Analyzing trace with hash -53993097, now seen corresponding path program 3 times
[2020-04-18 11:27:30,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:30,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318001225]
[2020-04-18 11:27:30,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,594 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 11:27:30,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318001225]
[2020-04-18 11:27:30,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:30,596 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,597 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,598 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions.
[2020-04-18 11:27:30,599 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,603 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:30,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:30,604 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states.
[2020-04-18 11:27:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,610 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2020-04-18 11:27:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2020-04-18 11:27:30,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:30,611 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [226763941]
[2020-04-18 11:27:30,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:30,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:27:30,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [226763941]
[2020-04-18 11:27:30,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 11:27:30,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:30,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:27:30,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:30,613 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states.
[2020-04-18 11:27:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,640 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions.
[2020-04-18 11:27:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-18 11:27:30,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-04-18 11:27:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:30,642 INFO L225 Difference]: With dead ends: 266
[2020-04-18 11:27:30,642 INFO L226 Difference]: Without dead ends: 140
[2020-04-18 11:27:30,642 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 11:27:30,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2020-04-18 11:27:30,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2020-04-18 11:27:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states.
[2020-04-18 11:27:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions.
[2020-04-18 11:27:30,653 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10
[2020-04-18 11:27:30,653 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:30,653 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions.
[2020-04-18 11:27:30,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 11:27:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions.
[2020-04-18 11:27:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:30,654 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:30,654 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:30,655 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times
[2020-04-18 11:27:30,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:30,655 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [565404849]
[2020-04-18 11:27:30,656 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,657 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 47 transitions.
[2020-04-18 11:27:30,657 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2020-04-18 11:27:30,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:30,658 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:30,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1335752706, now seen corresponding path program 2 times
[2020-04-18 11:27:30,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:30,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094838809]
[2020-04-18 11:27:30,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,723 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 11:27:30,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094838809]
[2020-04-18 11:27:30,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:30,724 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,725 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,728 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 11:27:30,728 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,735 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:30,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:30,736 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states.
[2020-04-18 11:27:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,742 INFO L93 Difference]: Finished difference Result 38 states and 58 transitions.
[2020-04-18 11:27:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions.
[2020-04-18 11:27:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:30,743 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1336319106, now seen corresponding path program 3 times
[2020-04-18 11:27:30,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:30,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480786507]
[2020-04-18 11:27:30,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,802 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 11:27:30,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480786507]
[2020-04-18 11:27:30,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:30,804 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,805 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,807 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions.
[2020-04-18 11:27:30,807 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,819 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:30,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:30,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:30,820 INFO L87 Difference]: Start difference. First operand 38 states and 58 transitions. Second operand 3 states.
[2020-04-18 11:27:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,823 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions.
[2020-04-18 11:27:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions.
[2020-04-18 11:27:30,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 11:27:30,823 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:30,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:30,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 4 times
[2020-04-18 11:27:30,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:30,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707475784]
[2020-04-18 11:27:30,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 11:27:30,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707475784]
[2020-04-18 11:27:30,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:30,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:30,921 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:30,922 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:30,925 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions.
[2020-04-18 11:27:30,925 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:30,943 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:27:30,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:27:30,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:27:30,944 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand 4 states.
[2020-04-18 11:27:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:30,958 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions.
[2020-04-18 11:27:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions.
[2020-04-18 11:27:30,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:30,959 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [565404849]
[2020-04-18 11:27:30,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:30,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:27:30,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [565404849]
[2020-04-18 11:27:30,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 11:27:30,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:30,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:27:30,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:27:30,964 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 6 states.
[2020-04-18 11:27:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,208 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions.
[2020-04-18 11:27:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 11:27:31,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11
[2020-04-18 11:27:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:31,210 INFO L225 Difference]: With dead ends: 165
[2020-04-18 11:27:31,210 INFO L226 Difference]: Without dead ends: 113
[2020-04-18 11:27:31,210 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 11:27:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2020-04-18 11:27:31,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2020-04-18 11:27:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states.
[2020-04-18 11:27:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions.
[2020-04-18 11:27:31,230 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11
[2020-04-18 11:27:31,230 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:31,230 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions.
[2020-04-18 11:27:31,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 11:27:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions.
[2020-04-18 11:27:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:31,231 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:31,231 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:31,231 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,232 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times
[2020-04-18 11:27:31,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:31,232 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [646785567]
[2020-04-18 11:27:31,233 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,234 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions.
[2020-04-18 11:27:31,234 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states.
[2020-04-18 11:27:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:31,235 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1541327102, now seen corresponding path program 2 times
[2020-04-18 11:27:31,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:31,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533377509]
[2020-04-18 11:27:31,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:31,282 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 11:27:31,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533377509]
[2020-04-18 11:27:31,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:31,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:31,283 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:31,284 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,288 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 26 transitions.
[2020-04-18 11:27:31,288 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:31,292 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:31,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:31,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:31,294 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states.
[2020-04-18 11:27:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,301 INFO L93 Difference]: Finished difference Result 49 states and 79 transitions.
[2020-04-18 11:27:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 79 transitions.
[2020-04-18 11:27:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:31,302 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1523780462, now seen corresponding path program 3 times
[2020-04-18 11:27:31,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:31,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051998244]
[2020-04-18 11:27:31,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:31,336 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 11:27:31,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051998244]
[2020-04-18 11:27:31,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:31,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:31,337 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:31,338 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,341 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions.
[2020-04-18 11:27:31,341 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:31,346 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:31,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:31,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:31,347 INFO L87 Difference]: Start difference. First operand 49 states and 79 transitions. Second operand 3 states.
[2020-04-18 11:27:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,351 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions.
[2020-04-18 11:27:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions.
[2020-04-18 11:27:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:27:31,351 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:31,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,352 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 4 times
[2020-04-18 11:27:31,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:31,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358013124]
[2020-04-18 11:27:31,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:31,413 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 11:27:31,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358013124]
[2020-04-18 11:27:31,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:31,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:27:31,414 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:31,415 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,418 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions.
[2020-04-18 11:27:31,419 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:31,441 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:31,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:27:31,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:27:31,443 INFO L87 Difference]: Start difference. First operand 55 states and 84 transitions. Second operand 5 states.
[2020-04-18 11:27:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,477 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions.
[2020-04-18 11:27:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions.
[2020-04-18 11:27:31,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:31,478 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [646785567]
[2020-04-18 11:27:31,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:31,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:27:31,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [646785567]
[2020-04-18 11:27:31,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 11:27:31,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:31,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:27:31,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-04-18 11:27:31,480 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 7 states.
[2020-04-18 11:27:31,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,732 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions.
[2020-04-18 11:27:31,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2020-04-18 11:27:31,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12
[2020-04-18 11:27:31,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:31,733 INFO L225 Difference]: With dead ends: 111
[2020-04-18 11:27:31,733 INFO L226 Difference]: Without dead ends: 80
[2020-04-18 11:27:31,734 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 11:27:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2020-04-18 11:27:31,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2020-04-18 11:27:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states.
[2020-04-18 11:27:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions.
[2020-04-18 11:27:31,738 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12
[2020-04-18 11:27:31,738 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:31,738 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions.
[2020-04-18 11:27:31,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 11:27:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions.
[2020-04-18 11:27:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:31,739 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:31,739 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:27:31,739 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:31,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,740 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times
[2020-04-18 11:27:31,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:31,740 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [835809869]
[2020-04-18 11:27:31,741 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,743 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 134 transitions.
[2020-04-18 11:27:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states.
[2020-04-18 11:27:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:31,744 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:31,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,745 INFO L82 PathProgramCache]: Analyzing trace with hash -605969466, now seen corresponding path program 2 times
[2020-04-18 11:27:31,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:31,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255178634]
[2020-04-18 11:27:31,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:31,811 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 11:27:31,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255178634]
[2020-04-18 11:27:31,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:31,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:31,812 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:31,814 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,818 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 48 transitions.
[2020-04-18 11:27:31,819 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:31,825 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:27:31,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:31,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:31,826 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states.
[2020-04-18 11:27:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,833 INFO L93 Difference]: Finished difference Result 105 states and 205 transitions.
[2020-04-18 11:27:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 205 transitions.
[2020-04-18 11:27:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:31,834 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:31,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,834 INFO L82 PathProgramCache]: Analyzing trace with hash -588422826, now seen corresponding path program 3 times
[2020-04-18 11:27:31,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:31,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896615817]
[2020-04-18 11:27:31,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:31,872 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 11:27:31,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896615817]
[2020-04-18 11:27:31,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:31,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:31,873 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:31,874 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,877 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions.
[2020-04-18 11:27:31,878 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:31,882 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:31,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:31,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:31,883 INFO L87 Difference]: Start difference. First operand 105 states and 205 transitions. Second operand 3 states.
[2020-04-18 11:27:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:31,886 INFO L93 Difference]: Finished difference Result 119 states and 222 transitions.
[2020-04-18 11:27:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 222 transitions.
[2020-04-18 11:27:31,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 11:27:31,887 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 4 times
[2020-04-18 11:27:31,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:31,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181598469]
[2020-04-18 11:27:31,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:31,982 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 11:27:31,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181598469]
[2020-04-18 11:27:31,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:31,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:27:31,983 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:31,984 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:31,988 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions.
[2020-04-18 11:27:31,989 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:32,018 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:27:32,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:27:32,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-04-18 11:27:32,019 INFO L87 Difference]: Start difference. First operand 119 states and 222 transitions. Second operand 6 states.
[2020-04-18 11:27:32,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,077 INFO L93 Difference]: Finished difference Result 119 states and 222 transitions.
[2020-04-18 11:27:32,078 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 222 transitions.
[2020-04-18 11:27:32,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:32,078 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [835809869]
[2020-04-18 11:27:32,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:32,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:27:32,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [835809869]
[2020-04-18 11:27:32,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 11:27:32,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:32,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 11:27:32,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2020-04-18 11:27:32,080 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 8 states.
[2020-04-18 11:27:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,286 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions.
[2020-04-18 11:27:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 11:27:32,286 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14
[2020-04-18 11:27:32,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:32,287 INFO L225 Difference]: With dead ends: 75
[2020-04-18 11:27:32,287 INFO L226 Difference]: Without dead ends: 66
[2020-04-18 11:27:32,288 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 11:27:32,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-04-18 11:27:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2020-04-18 11:27:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-04-18 11:27:32,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions.
[2020-04-18 11:27:32,291 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14
[2020-04-18 11:27:32,295 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:32,296 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions.
[2020-04-18 11:27:32,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 11:27:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions.
[2020-04-18 11:27:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:32,297 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:27:32,297 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 11:27:32,297 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:27:32,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:32,297 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times
[2020-04-18 11:27:32,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:27:32,298 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1408200454]
[2020-04-18 11:27:32,299 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:32,309 INFO L259 McrAutomatonBuilder]: Finished intersection with 234 states and 656 transitions.
[2020-04-18 11:27:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states.
[2020-04-18 11:27:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:32,313 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:27:32,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:32,313 INFO L82 PathProgramCache]: Analyzing trace with hash -689704600, now seen corresponding path program 2 times
[2020-04-18 11:27:32,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:32,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942019492]
[2020-04-18 11:27:32,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:32,346 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 11:27:32,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942019492]
[2020-04-18 11:27:32,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:32,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:32,347 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:32,348 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:32,358 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 90 transitions.
[2020-04-18 11:27:32,358 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:32,363 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:27:32,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:32,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:27:32,364 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states.
[2020-04-18 11:27:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,376 INFO L93 Difference]: Finished difference Result 390 states and 1057 transitions.
[2020-04-18 11:27:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 1057 transitions.
[2020-04-18 11:27:32,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:32,379 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:27:32,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:32,380 INFO L82 PathProgramCache]: Analyzing trace with hash 595608656, now seen corresponding path program 3 times
[2020-04-18 11:27:32,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:32,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871006402]
[2020-04-18 11:27:32,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:32,406 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 11:27:32,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871006402]
[2020-04-18 11:27:32,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:32,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:27:32,407 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:32,408 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:32,413 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 76 transitions.
[2020-04-18 11:27:32,413 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:32,419 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:32,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:27:32,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:27:32,420 INFO L87 Difference]: Start difference. First operand 390 states and 1057 transitions. Second operand 3 states.
[2020-04-18 11:27:32,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,428 INFO L93 Difference]: Finished difference Result 446 states and 1167 transitions.
[2020-04-18 11:27:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 1167 transitions.
[2020-04-18 11:27:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:32,430 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:27:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash -901910694, now seen corresponding path program 4 times
[2020-04-18 11:27:32,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:32,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073251330]
[2020-04-18 11:27:32,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:32,461 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 11:27:32,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073251330]
[2020-04-18 11:27:32,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:32,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:27:32,462 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:32,464 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:32,474 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 63 transitions.
[2020-04-18 11:27:32,474 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:32,494 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:27:32,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:27:32,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:27:32,495 INFO L87 Difference]: Start difference. First operand 446 states and 1167 transitions. Second operand 4 states.
[2020-04-18 11:27:32,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,521 INFO L93 Difference]: Finished difference Result 638 states and 1577 transitions.
[2020-04-18 11:27:32,522 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1577 transitions.
[2020-04-18 11:27:32,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:32,524 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:27:32,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:32,524 INFO L82 PathProgramCache]: Analyzing trace with hash -901846014, now seen corresponding path program 5 times
[2020-04-18 11:27:32,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:32,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207363618]
[2020-04-18 11:27:32,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:32,571 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 11:27:32,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207363618]
[2020-04-18 11:27:32,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:32,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 11:27:32,572 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:32,574 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:32,584 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 52 transitions.
[2020-04-18 11:27:32,584 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:32,622 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:27:32,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:27:32,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:27:32,623 INFO L87 Difference]: Start difference. First operand 638 states and 1577 transitions. Second operand 6 states.
[2020-04-18 11:27:32,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,740 INFO L93 Difference]: Finished difference Result 644 states and 1580 transitions.
[2020-04-18 11:27:32,740 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1580 transitions.
[2020-04-18 11:27:32,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 11:27:32,743 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:27:32,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:27:32,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 6 times
[2020-04-18 11:27:32,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:27:32,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606902223]
[2020-04-18 11:27:32,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:27:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:27:32,778 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 11:27:32,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606902223]
[2020-04-18 11:27:32,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:27:32,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:27:32,779 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:27:32,781 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:27:32,792 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 57 transitions.
[2020-04-18 11:27:32,793 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:27:32,904 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times.
[2020-04-18 11:27:32,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:27:32,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240
[2020-04-18 11:27:32,905 INFO L87 Difference]: Start difference. First operand 644 states and 1580 transitions. Second operand 5 states.
[2020-04-18 11:27:32,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:32,935 INFO L93 Difference]: Finished difference Result 1048 states and 2378 transitions.
[2020-04-18 11:27:32,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 2378 transitions.
[2020-04-18 11:27:32,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:32,939 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1408200454]
[2020-04-18 11:27:32,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:27:32,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:27:32,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1408200454]
[2020-04-18 11:27:32,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-04-18 11:27:32,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:27:32,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-04-18 11:27:32,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272
[2020-04-18 11:27:32,942 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 13 states.
[2020-04-18 11:27:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:27:33,875 INFO L93 Difference]: Finished difference Result 103 states and 198 transitions.
[2020-04-18 11:27:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states.
[2020-04-18 11:27:33,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17
[2020-04-18 11:27:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:27:33,876 INFO L225 Difference]: With dead ends: 103
[2020-04-18 11:27:33,876 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 11:27:33,877 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=655, Invalid=2767, Unknown=0, NotChecked=0, Total=3422
[2020-04-18 11:27:33,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 11:27:33,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 11:27:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 11:27:33,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 11:27:33,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-04-18 11:27:33,879 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:27:33,879 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 11:27:33,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-04-18 11:27:33,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 11:27:33,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:27:33,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:27:33 BasicIcfg
[2020-04-18 11:27:33,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 11:27:33,887 INFO L168 Benchmark]: Toolchain (without parser) took 7534.43 ms. Allocated memory was 144.2 MB in the beginning and 288.4 MB in the end (delta: 144.2 MB). Free memory was 100.7 MB in the beginning and 115.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 129.0 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,894 INFO L168 Benchmark]: CDTParser took 1.55 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.84 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 98.6 MB in the beginning and 159.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.50 ms. Allocated memory is still 202.4 MB. Free memory was 159.9 MB in the beginning and 157.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,899 INFO L168 Benchmark]: Boogie Preprocessor took 29.78 ms. Allocated memory is still 202.4 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,903 INFO L168 Benchmark]: RCFGBuilder took 426.81 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 134.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,903 INFO L168 Benchmark]: TraceAbstraction took 6235.57 ms. Allocated memory was 202.4 MB in the beginning and 288.4 MB in the end (delta: 86.0 MB). Free memory was 133.6 MB in the beginning and 115.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 7.1 GB.
[2020-04-18 11:27:33,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.55 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 767.84 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 98.6 MB in the beginning and 159.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 47.50 ms. Allocated memory is still 202.4 MB. Free memory was 159.9 MB in the beginning and 157.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 29.78 ms. Allocated memory is still 202.4 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 426.81 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 134.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 6235.57 ms. Allocated memory was 202.4 MB in the beginning and 288.4 MB in the end (delta: 86.0 MB). Free memory was 133.6 MB in the beginning and 115.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 2.0s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 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: 0.3s, 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: 6.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s 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...