/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/safe021_tso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 11:05:30,532 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 11:05:30,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 11:05:30,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 11:05:30,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 11:05:30,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 11:05:30,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 11:05:30,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 11:05:30,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 11:05:30,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-04-18 11:05:30,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 11:05:30,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 11:05:30,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 11:05:30,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 11:05:30,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 11:05:30,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 11:05:30,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 11:05:30,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 11:05:30,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 11:05:30,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 11:05:30,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 11:05:30,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 11:05:30,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-04-18 11:05:30,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 11:05:30,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-04-18 11:05:30,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-04-18 11:05:30,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 11:05:30,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 11:05:30,580 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 11:05:30,595 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 11:05:30,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 11:05:30,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 11:05:30,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 11:05:30,597 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 11:05:30,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 11:05:30,597 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 11:05:30,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 11:05:30,598 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 11:05:30,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 11:05:30,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 11:05:30,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 11:05:30,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 11:05:30,599 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 11:05:30,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 11:05:30,599 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 11:05:30,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 11:05:30,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 11:05:30,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 11:05:30,600 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 11:05:30,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 11:05:30,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 11:05:30,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 11:05:30,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 11:05:30,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 11:05:30,601 INFO L138 SettingsManager]: * Trace refinement strategy=MCR
[2020-04-18 11:05:30,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 11:05:30,602 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 11:05:30,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 11:05:30,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 11:05:30,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 11:05:30,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 11:05:30,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 11:05:30,940 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 11:05:30,940 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 11:05:30,941 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i
[2020-04-18 11:05:31,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b365bd71/215f9fa777d943d0ac90e41c2b13913f/FLAG1717aaa59
[2020-04-18 11:05:31,580 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 11:05:31,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i
[2020-04-18 11:05:31,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b365bd71/215f9fa777d943d0ac90e41c2b13913f/FLAG1717aaa59
[2020-04-18 11:05:31,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b365bd71/215f9fa777d943d0ac90e41c2b13913f
[2020-04-18 11:05:31,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 11:05:31,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 11:05:31,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 11:05:31,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 11:05:31,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 11:05:31,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:05:31" (1/1) ...
[2020-04-18 11:05:31,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a67c07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:31, skipping insertion in model container
[2020-04-18 11:05:31,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:05:31" (1/1) ...
[2020-04-18 11:05:31,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 11:05:31,948 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 11:05:32,505 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:05:32,519 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 11:05:32,578 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:05:32,653 INFO L208 MainTranslator]: Completed translation
[2020-04-18 11:05:32,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32 WrapperNode
[2020-04-18 11:05:32,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 11:05:32,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 11:05:32,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 11:05:32,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 11:05:32,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 11:05:32,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 11:05:32,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 11:05:32,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 11:05:32,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (1/1) ...
[2020-04-18 11:05:32,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 11:05:32,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 11:05:32,740 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 11:05:32,740 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 11:05:32,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (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 11:05:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 11:05:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 11:05:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 11:05:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 11:05:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 11:05:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 11:05:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 11:05:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 11:05:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 11:05:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 11:05:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 11:05:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 11:05:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 11:05:32,819 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 11:05:33,217 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 11:05:33,217 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 11:05:33,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:05:33 BoogieIcfgContainer
[2020-04-18 11:05:33,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 11:05:33,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 11:05:33,223 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 11:05:33,227 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 11:05:33,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:05:31" (1/3) ...
[2020-04-18 11:05:33,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff4da30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:05:33, skipping insertion in model container
[2020-04-18 11:05:33,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:05:32" (2/3) ...
[2020-04-18 11:05:33,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff4da30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:05:33, skipping insertion in model container
[2020-04-18 11:05:33,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:05:33" (3/3) ...
[2020-04-18 11:05:33,231 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i
[2020-04-18 11:05:33,242 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 11:05:33,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 11:05:33,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 11:05:33,252 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 11:05:33,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,277 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,278 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,279 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,280 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,282 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,282 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,284 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,284 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,286 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,286 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,286 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,286 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,287 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,288 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,294 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,295 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,295 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,295 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,306 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,306 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,307 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,307 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,314 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,314 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,314 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,315 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:05:33,341 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 11:05:33,364 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 11:05:33,364 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 11:05:33,365 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 11:05:33,365 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 11:05:33,365 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 11:05:33,365 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 11:05:33,365 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 11:05:33,366 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 11:05:33,380 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-04-18 11:05:33,382 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 11:05:33,435 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 11:05:33,435 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:05:33,440 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-18 11:05:33,443 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 11:05:33,468 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 11:05:33,468 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 11:05:33,469 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-18 11:05:33,473 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-18 11:05:33,474 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-18 11:05:35,029 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49
[2020-04-18 11:05:35,085 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2250
[2020-04-18 11:05:35,086 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55
[2020-04-18 11:05:35,090 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow
[2020-04-18 11:05:35,123 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states.
[2020-04-18 11:05:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states.
[2020-04-18 11:05:35,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:05:35,134 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:35,135 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:35,135 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:35,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:35,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times
[2020-04-18 11:05:35,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:35,154 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [907308927]
[2020-04-18 11:05:35,176 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:35,194 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:05:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 11:05:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:05:35,199 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:35,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 2 times
[2020-04-18 11:05:35,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:35,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225502346]
[2020-04-18 11:05:35,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:35,462 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 11:05:35,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225502346]
[2020-04-18 11:05:35,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:35,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:05:35,465 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:35,466 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:35,468 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:05:35,468 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:35,471 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:05:35,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-18 11:05:35,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:05:35,476 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states.
[2020-04-18 11:05:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:35,479 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2020-04-18 11:05:35,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2020-04-18 11:05:35,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:35,480 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [907308927]
[2020-04-18 11:05:35,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:35,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:05:35,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [907308927]
[2020-04-18 11:05:35,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-18 11:05:35,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:35,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-18 11:05:35,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:05:35,486 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states.
[2020-04-18 11:05:35,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:35,510 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions.
[2020-04-18 11:05:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-04-18 11:05:35,511 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-04-18 11:05:35,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:35,535 INFO L225 Difference]: With dead ends: 362
[2020-04-18 11:05:35,535 INFO L226 Difference]: Without dead ends: 298
[2020-04-18 11:05:35,537 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:05:35,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-04-18 11:05:35,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2020-04-18 11:05:35,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-04-18 11:05:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions.
[2020-04-18 11:05:35,640 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8
[2020-04-18 11:05:35,641 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:35,641 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions.
[2020-04-18 11:05:35,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-18 11:05:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions.
[2020-04-18 11:05:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:05:35,644 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:35,644 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:35,644 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times
[2020-04-18 11:05:35,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:35,646 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1945678789]
[2020-04-18 11:05:35,646 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:35,647 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 11:05:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states.
[2020-04-18 11:05:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 11:05:35,648 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:35,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 2 times
[2020-04-18 11:05:35,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:35,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430009772]
[2020-04-18 11:05:35,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:35,827 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 11:05:35,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430009772]
[2020-04-18 11:05:35,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:35,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:35,830 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:35,830 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:35,832 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 11:05:35,832 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:35,856 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:05:35,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:35,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 11:05:35,857 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states.
[2020-04-18 11:05:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:35,877 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions.
[2020-04-18 11:05:35,877 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions.
[2020-04-18 11:05:35,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:35,879 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1945678789]
[2020-04-18 11:05:35,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:35,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:05:35,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1945678789]
[2020-04-18 11:05:35,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 11:05:35,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:35,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:35,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:05:35,884 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states.
[2020-04-18 11:05:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:35,952 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions.
[2020-04-18 11:05:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-04-18 11:05:35,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-04-18 11:05:35,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:35,956 INFO L225 Difference]: With dead ends: 330
[2020-04-18 11:05:35,956 INFO L226 Difference]: Without dead ends: 266
[2020-04-18 11:05:35,958 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:05:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2020-04-18 11:05:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2020-04-18 11:05:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states.
[2020-04-18 11:05:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions.
[2020-04-18 11:05:35,980 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9
[2020-04-18 11:05:35,980 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:35,980 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions.
[2020-04-18 11:05:35,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 11:05:35,980 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions.
[2020-04-18 11:05:35,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:05:35,982 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:35,982 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:35,982 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:35,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:35,983 INFO L82 PathProgramCache]: Analyzing trace with hash -397698604, now seen corresponding path program 1 times
[2020-04-18 11:05:35,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:35,983 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1444356801]
[2020-04-18 11:05:35,984 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:35,984 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions.
[2020-04-18 11:05:35,985 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states.
[2020-04-18 11:05:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:05:35,985 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:35,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:35,986 INFO L82 PathProgramCache]: Analyzing trace with hash -397698604, now seen corresponding path program 2 times
[2020-04-18 11:05:35,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:35,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422117720]
[2020-04-18 11:05:35,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:36,109 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 11:05:36,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422117720]
[2020-04-18 11:05:36,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:36,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:36,111 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:36,112 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,113 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions.
[2020-04-18 11:05:36,114 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:36,152 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:36,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:05:36,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:05:36,153 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 7 states.
[2020-04-18 11:05:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:36,185 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions.
[2020-04-18 11:05:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2020-04-18 11:05:36,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:36,186 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1444356801]
[2020-04-18 11:05:36,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:36,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:05:36,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1444356801]
[2020-04-18 11:05:36,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 11:05:36,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:36,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:05:36,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2020-04-18 11:05:36,188 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 7 states.
[2020-04-18 11:05:36,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:36,313 INFO L93 Difference]: Finished difference Result 314 states and 856 transitions.
[2020-04-18 11:05:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-04-18 11:05:36,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10
[2020-04-18 11:05:36,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:36,316 INFO L225 Difference]: With dead ends: 314
[2020-04-18 11:05:36,316 INFO L226 Difference]: Without dead ends: 170
[2020-04-18 11:05:36,317 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156
[2020-04-18 11:05:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states.
[2020-04-18 11:05:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170.
[2020-04-18 11:05:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states.
[2020-04-18 11:05:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions.
[2020-04-18 11:05:36,328 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 10
[2020-04-18 11:05:36,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:36,328 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions.
[2020-04-18 11:05:36,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 11:05:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions.
[2020-04-18 11:05:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:05:36,330 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:36,330 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:36,330 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:36,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:36,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1820296279, now seen corresponding path program 1 times
[2020-04-18 11:05:36,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:36,331 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [483431264]
[2020-04-18 11:05:36,332 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,333 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions.
[2020-04-18 11:05:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states.
[2020-04-18 11:05:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:05:36,334 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:36,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1802735809, now seen corresponding path program 2 times
[2020-04-18 11:05:36,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:36,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236799602]
[2020-04-18 11:05:36,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:36,388 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 11:05:36,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236799602]
[2020-04-18 11:05:36,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:36,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:36,390 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:36,391 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,393 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 31 transitions.
[2020-04-18 11:05:36,393 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:36,407 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:36,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:36,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-18 11:05:36,408 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states.
[2020-04-18 11:05:36,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:36,456 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions.
[2020-04-18 11:05:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions.
[2020-04-18 11:05:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:05:36,457 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:05:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1820296279, now seen corresponding path program 3 times
[2020-04-18 11:05:36,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:36,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921363537]
[2020-04-18 11:05:36,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:36,550 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 11:05:36,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921363537]
[2020-04-18 11:05:36,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:36,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:36,551 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:36,553 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,559 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions.
[2020-04-18 11:05:36,559 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:36,576 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:36,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:05:36,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:05:36,577 INFO L87 Difference]: Start difference. First operand 39 states and 64 transitions. Second operand 4 states.
[2020-04-18 11:05:36,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:36,611 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions.
[2020-04-18 11:05:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions.
[2020-04-18 11:05:36,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:36,612 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [483431264]
[2020-04-18 11:05:36,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:36,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:05:36,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [483431264]
[2020-04-18 11:05:36,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 11:05:36,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:36,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:05:36,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2020-04-18 11:05:36,614 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 7 states.
[2020-04-18 11:05:36,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:36,741 INFO L93 Difference]: Finished difference Result 183 states and 423 transitions.
[2020-04-18 11:05:36,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-04-18 11:05:36,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12
[2020-04-18 11:05:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:36,742 INFO L225 Difference]: With dead ends: 183
[2020-04-18 11:05:36,743 INFO L226 Difference]: Without dead ends: 143
[2020-04-18 11:05:36,743 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2020-04-18 11:05:36,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2020-04-18 11:05:36,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143.
[2020-04-18 11:05:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states.
[2020-04-18 11:05:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 330 transitions.
[2020-04-18 11:05:36,750 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 330 transitions. Word has length 12
[2020-04-18 11:05:36,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:36,751 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 330 transitions.
[2020-04-18 11:05:36,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 11:05:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 330 transitions.
[2020-04-18 11:05:36,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:05:36,752 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:36,752 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:36,753 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:36,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:36,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1114555336, now seen corresponding path program 1 times
[2020-04-18 11:05:36,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:36,753 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1928133437]
[2020-04-18 11:05:36,754 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,755 INFO L259 McrAutomatonBuilder]: Finished intersection with 44 states and 82 transitions.
[2020-04-18 11:05:36,756 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states.
[2020-04-18 11:05:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:05:36,756 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:36,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:36,757 INFO L82 PathProgramCache]: Analyzing trace with hash 50235434, now seen corresponding path program 2 times
[2020-04-18 11:05:36,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:36,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996617754]
[2020-04-18 11:05:36,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:36,842 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 11:05:36,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996617754]
[2020-04-18 11:05:36,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:36,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:36,843 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:36,845 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,847 INFO L259 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions.
[2020-04-18 11:05:36,848 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:36,864 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:36,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:36,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-18 11:05:36,865 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states.
[2020-04-18 11:05:36,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:36,908 INFO L93 Difference]: Finished difference Result 54 states and 95 transitions.
[2020-04-18 11:05:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 95 transitions.
[2020-04-18 11:05:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:05:36,911 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:05:36,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:36,912 INFO L82 PathProgramCache]: Analyzing trace with hash 594610004, now seen corresponding path program 3 times
[2020-04-18 11:05:36,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:36,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916532025]
[2020-04-18 11:05:36,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:36,992 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 11:05:36,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916532025]
[2020-04-18 11:05:36,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:36,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:36,994 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:36,995 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:36,999 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 11:05:37,000 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:37,019 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:37,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:05:37,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2020-04-18 11:05:37,021 INFO L87 Difference]: Start difference. First operand 54 states and 95 transitions. Second operand 4 states.
[2020-04-18 11:05:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:37,039 INFO L93 Difference]: Finished difference Result 64 states and 105 transitions.
[2020-04-18 11:05:37,039 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 105 transitions.
[2020-04-18 11:05:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 11:05:37,040 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:05:37,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:37,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1114555336, now seen corresponding path program 4 times
[2020-04-18 11:05:37,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:37,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973642660]
[2020-04-18 11:05:37,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:37,123 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 11:05:37,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973642660]
[2020-04-18 11:05:37,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:37,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:37,125 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:37,126 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:37,128 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions.
[2020-04-18 11:05:37,129 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:37,193 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 11:05:37,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:05:37,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2020-04-18 11:05:37,194 INFO L87 Difference]: Start difference. First operand 64 states and 105 transitions. Second operand 6 states.
[2020-04-18 11:05:37,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:37,217 INFO L93 Difference]: Finished difference Result 64 states and 105 transitions.
[2020-04-18 11:05:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 105 transitions.
[2020-04-18 11:05:37,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:37,218 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1928133437]
[2020-04-18 11:05:37,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:37,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:05:37,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1928133437]
[2020-04-18 11:05:37,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-04-18 11:05:37,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:37,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 11:05:37,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182
[2020-04-18 11:05:37,219 INFO L87 Difference]: Start difference. First operand 143 states and 330 transitions. Second operand 9 states.
[2020-04-18 11:05:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:37,393 INFO L93 Difference]: Finished difference Result 129 states and 271 transitions.
[2020-04-18 11:05:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-04-18 11:05:37,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13
[2020-04-18 11:05:37,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:37,395 INFO L225 Difference]: With dead ends: 129
[2020-04-18 11:05:37,395 INFO L226 Difference]: Without dead ends: 104
[2020-04-18 11:05:37,396 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420
[2020-04-18 11:05:37,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2020-04-18 11:05:37,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2020-04-18 11:05:37,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states.
[2020-04-18 11:05:37,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 215 transitions.
[2020-04-18 11:05:37,403 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 215 transitions. Word has length 13
[2020-04-18 11:05:37,403 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:37,403 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 215 transitions.
[2020-04-18 11:05:37,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-04-18 11:05:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions.
[2020-04-18 11:05:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:05:37,404 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:37,405 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:37,405 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:37,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1420096236, now seen corresponding path program 1 times
[2020-04-18 11:05:37,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:37,406 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [483948887]
[2020-04-18 11:05:37,407 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:37,408 INFO L259 McrAutomatonBuilder]: Finished intersection with 76 states and 162 transitions.
[2020-04-18 11:05:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states.
[2020-04-18 11:05:37,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:05:37,411 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:37,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:37,412 INFO L82 PathProgramCache]: Analyzing trace with hash -500571274, now seen corresponding path program 2 times
[2020-04-18 11:05:37,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:37,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24802461]
[2020-04-18 11:05:37,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:37,537 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 11:05:37,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24802461]
[2020-04-18 11:05:37,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:37,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 11:05:37,538 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:37,539 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:37,543 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 41 transitions.
[2020-04-18 11:05:37,543 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:37,577 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:05:37,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:05:37,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:05:37,578 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 7 states.
[2020-04-18 11:05:37,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:37,761 INFO L93 Difference]: Finished difference Result 106 states and 221 transitions.
[2020-04-18 11:05:37,761 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 221 transitions.
[2020-04-18 11:05:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:05:37,762 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:05:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:37,762 INFO L82 PathProgramCache]: Analyzing trace with hash 142536028, now seen corresponding path program 3 times
[2020-04-18 11:05:37,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:37,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84088656]
[2020-04-18 11:05:37,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:37,798 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 11:05:37,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84088656]
[2020-04-18 11:05:37,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:37,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:37,799 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:37,800 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:37,803 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions.
[2020-04-18 11:05:37,819 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:37,835 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:37,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:05:37,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182
[2020-04-18 11:05:37,836 INFO L87 Difference]: Start difference. First operand 106 states and 221 transitions. Second operand 4 states.
[2020-04-18 11:05:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:37,868 INFO L93 Difference]: Finished difference Result 142 states and 275 transitions.
[2020-04-18 11:05:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 275 transitions.
[2020-04-18 11:05:37,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:05:37,869 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:05:37,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:37,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1420449816, now seen corresponding path program 4 times
[2020-04-18 11:05:37,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:37,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465886083]
[2020-04-18 11:05:37,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:37,913 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 11:05:37,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465886083]
[2020-04-18 11:05:37,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:37,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:37,914 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:37,915 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:37,916 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 27 transitions.
[2020-04-18 11:05:37,917 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:37,927 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:05:37,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:37,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2020-04-18 11:05:37,928 INFO L87 Difference]: Start difference. First operand 142 states and 275 transitions. Second operand 5 states.
[2020-04-18 11:05:37,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:37,966 INFO L93 Difference]: Finished difference Result 148 states and 279 transitions.
[2020-04-18 11:05:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 279 transitions.
[2020-04-18 11:05:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 11:05:37,967 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:05:37,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:37,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1420096236, now seen corresponding path program 5 times
[2020-04-18 11:05:37,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:37,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546416520]
[2020-04-18 11:05:37,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:38,013 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 11:05:38,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546416520]
[2020-04-18 11:05:38,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:38,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 11:05:38,014 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:38,015 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:38,017 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 23 transitions.
[2020-04-18 11:05:38,017 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:38,029 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:05:38,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:05:38,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306
[2020-04-18 11:05:38,030 INFO L87 Difference]: Start difference. First operand 148 states and 279 transitions. Second operand 6 states.
[2020-04-18 11:05:38,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:38,069 INFO L93 Difference]: Finished difference Result 148 states and 279 transitions.
[2020-04-18 11:05:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 279 transitions.
[2020-04-18 11:05:38,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:38,070 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [483948887]
[2020-04-18 11:05:38,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:38,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 11:05:38,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [483948887]
[2020-04-18 11:05:38,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-04-18 11:05:38,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:38,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-04-18 11:05:38,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342
[2020-04-18 11:05:38,072 INFO L87 Difference]: Start difference. First operand 104 states and 215 transitions. Second operand 11 states.
[2020-04-18 11:05:38,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:38,182 INFO L93 Difference]: Finished difference Result 93 states and 191 transitions.
[2020-04-18 11:05:38,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-04-18 11:05:38,182 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15
[2020-04-18 11:05:38,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:38,183 INFO L225 Difference]: With dead ends: 93
[2020-04-18 11:05:38,183 INFO L226 Difference]: Without dead ends: 85
[2020-04-18 11:05:38,184 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420
[2020-04-18 11:05:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2020-04-18 11:05:38,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85.
[2020-04-18 11:05:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states.
[2020-04-18 11:05:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions.
[2020-04-18 11:05:38,188 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 15
[2020-04-18 11:05:38,188 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:38,188 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions.
[2020-04-18 11:05:38,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-04-18 11:05:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions.
[2020-04-18 11:05:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:38,189 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:05:38,189 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:05:38,189 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:05:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:38,190 INFO L82 PathProgramCache]: Analyzing trace with hash -572692364, now seen corresponding path program 1 times
[2020-04-18 11:05:38,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:05:38,190 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [131416863]
[2020-04-18 11:05:38,191 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:38,196 INFO L259 McrAutomatonBuilder]: Finished intersection with 298 states and 864 transitions.
[2020-04-18 11:05:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-04-18 11:05:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:38,201 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:05:38,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:38,201 INFO L82 PathProgramCache]: Analyzing trace with hash -392200012, now seen corresponding path program 2 times
[2020-04-18 11:05:38,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:38,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029172190]
[2020-04-18 11:05:38,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:38,273 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 11:05:38,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029172190]
[2020-04-18 11:05:38,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:38,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 11:05:38,274 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:38,276 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:38,283 INFO L259 McrAutomatonBuilder]: Finished intersection with 64 states and 117 transitions.
[2020-04-18 11:05:38,283 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:38,329 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:05:38,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:05:38,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:05:38,330 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 7 states.
[2020-04-18 11:05:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:38,574 INFO L93 Difference]: Finished difference Result 448 states and 1264 transitions.
[2020-04-18 11:05:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1264 transitions.
[2020-04-18 11:05:38,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:38,576 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:05:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:38,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1431673586, now seen corresponding path program 3 times
[2020-04-18 11:05:38,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:38,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982875543]
[2020-04-18 11:05:38,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:38,657 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 11:05:38,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982875543]
[2020-04-18 11:05:38,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:38,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:38,660 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:38,662 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:38,669 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 78 transitions.
[2020-04-18 11:05:38,670 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:38,737 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:05:38,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:05:38,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182
[2020-04-18 11:05:38,738 INFO L87 Difference]: Start difference. First operand 448 states and 1264 transitions. Second operand 4 states.
[2020-04-18 11:05:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:38,802 INFO L93 Difference]: Finished difference Result 652 states and 1742 transitions.
[2020-04-18 11:05:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1742 transitions.
[2020-04-18 11:05:38,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:38,810 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:05:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:38,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1692127022, now seen corresponding path program 4 times
[2020-04-18 11:05:38,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:38,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797978967]
[2020-04-18 11:05:38,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:38,896 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 11:05:38,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797978967]
[2020-04-18 11:05:38,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:38,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:38,897 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:38,899 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:38,903 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 55 transitions.
[2020-04-18 11:05:38,903 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:38,916 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:05:38,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:38,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2020-04-18 11:05:38,918 INFO L87 Difference]: Start difference. First operand 652 states and 1742 transitions. Second operand 5 states.
[2020-04-18 11:05:39,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:39,005 INFO L93 Difference]: Finished difference Result 712 states and 1836 transitions.
[2020-04-18 11:05:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1836 transitions.
[2020-04-18 11:05:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:39,009 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:05:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:39,010 INFO L82 PathProgramCache]: Analyzing trace with hash 659273086, now seen corresponding path program 5 times
[2020-04-18 11:05:39,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:39,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001086727]
[2020-04-18 11:05:39,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:39,074 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 11:05:39,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001086727]
[2020-04-18 11:05:39,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:39,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 11:05:39,079 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:39,081 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:39,087 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 40 transitions.
[2020-04-18 11:05:39,087 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:39,103 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:05:39,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 11:05:39,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306
[2020-04-18 11:05:39,105 INFO L87 Difference]: Start difference. First operand 712 states and 1836 transitions. Second operand 6 states.
[2020-04-18 11:05:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:39,204 INFO L93 Difference]: Finished difference Result 718 states and 1840 transitions.
[2020-04-18 11:05:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1840 transitions.
[2020-04-18 11:05:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:39,207 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:05:39,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:39,208 INFO L82 PathProgramCache]: Analyzing trace with hash -572692364, now seen corresponding path program 6 times
[2020-04-18 11:05:39,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:39,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860610743]
[2020-04-18 11:05:39,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:39,247 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 11:05:39,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860610743]
[2020-04-18 11:05:39,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:39,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:39,249 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:39,251 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:39,255 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 34 transitions.
[2020-04-18 11:05:39,255 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:39,297 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 11:05:39,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 11:05:39,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380
[2020-04-18 11:05:39,298 INFO L87 Difference]: Start difference. First operand 718 states and 1840 transitions. Second operand 4 states.
[2020-04-18 11:05:39,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:39,329 INFO L93 Difference]: Finished difference Result 1305 states and 3188 transitions.
[2020-04-18 11:05:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 3188 transitions.
[2020-04-18 11:05:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:39,333 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 11:05:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:39,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1469301908, now seen corresponding path program 7 times
[2020-04-18 11:05:39,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:39,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642341014]
[2020-04-18 11:05:39,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 11:05:39,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642341014]
[2020-04-18 11:05:39,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:39,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:05:39,401 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:39,402 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:39,409 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 110 transitions.
[2020-04-18 11:05:39,409 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:39,437 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:05:39,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 11:05:39,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506
[2020-04-18 11:05:39,438 INFO L87 Difference]: Start difference. First operand 1305 states and 3188 transitions. Second operand 5 states.
[2020-04-18 11:05:39,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:39,509 INFO L93 Difference]: Finished difference Result 1461 states and 3475 transitions.
[2020-04-18 11:05:39,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 3475 transitions.
[2020-04-18 11:05:39,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 11:05:39,513 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 11:05:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:05:39,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 8 times
[2020-04-18 11:05:39,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:05:39,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349647299]
[2020-04-18 11:05:39,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:05:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:05:39,575 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 11:05:39,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349647299]
[2020-04-18 11:05:39,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:05:39,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 11:05:39,576 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:05:39,579 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:05:39,585 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 100 transitions.
[2020-04-18 11:05:39,585 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:05:39,701 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 11:05:39,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:05:39,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=716, Unknown=0, NotChecked=0, Total=870
[2020-04-18 11:05:39,703 INFO L87 Difference]: Start difference. First operand 1461 states and 3475 transitions. Second operand 7 states.
[2020-04-18 11:05:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:39,774 INFO L93 Difference]: Finished difference Result 2311 states and 5251 transitions.
[2020-04-18 11:05:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 5251 transitions.
[2020-04-18 11:05:39,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:39,780 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [131416863]
[2020-04-18 11:05:39,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:05:39,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4
[2020-04-18 11:05:39,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [131416863]
[2020-04-18 11:05:39,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states
[2020-04-18 11:05:39,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:05:39,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2020-04-18 11:05:39,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992
[2020-04-18 11:05:39,782 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 18 states.
[2020-04-18 11:05:40,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:05:40,402 INFO L93 Difference]: Finished difference Result 130 states and 257 transitions.
[2020-04-18 11:05:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2020-04-18 11:05:40,403 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18
[2020-04-18 11:05:40,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:05:40,404 INFO L225 Difference]: With dead ends: 130
[2020-04-18 11:05:40,404 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 11:05:40,405 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=550, Invalid=2756, Unknown=0, NotChecked=0, Total=3306
[2020-04-18 11:05:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 11:05:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 11:05:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 11:05:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 11:05:40,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2020-04-18 11:05:40,406 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:05:40,406 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 11:05:40,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states.
[2020-04-18 11:05:40,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 11:05:40,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:05:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:05:40 BasicIcfg
[2020-04-18 11:05:40,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 11:05:40,411 INFO L168 Benchmark]: Toolchain (without parser) took 8543.60 ms. Allocated memory was 135.3 MB in the beginning and 307.8 MB in the end (delta: 172.5 MB). Free memory was 98.6 MB in the beginning and 98.9 MB in the end (delta: -237.3 kB). Peak memory consumption was 172.3 MB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,412 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.27 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 96.7 MB in the beginning and 156.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.84 ms. Allocated memory is still 199.8 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,414 INFO L168 Benchmark]: Boogie Preprocessor took 31.66 ms. Allocated memory is still 199.8 MB. Free memory was 154.4 MB in the beginning and 152.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,414 INFO L168 Benchmark]: RCFGBuilder took 482.38 ms. Allocated memory is still 199.8 MB. Free memory was 152.2 MB in the beginning and 130.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,415 INFO L168 Benchmark]: TraceAbstraction took 7186.83 ms. Allocated memory was 199.8 MB in the beginning and 307.8 MB in the end (delta: 108.0 MB). Free memory was 129.8 MB in the beginning and 98.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 7.1 GB.
[2020-04-18 11:05:40,417 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 768.27 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 96.7 MB in the beginning and 156.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 52.84 ms. Allocated memory is still 199.8 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 31.66 ms. Allocated memory is still 199.8 MB. Free memory was 154.4 MB in the beginning and 152.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 482.38 ms. Allocated memory is still 199.8 MB. Free memory was 152.2 MB in the beginning and 130.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 7186.83 ms. Allocated memory was 199.8 MB in the beginning and 307.8 MB in the end (delta: 108.0 MB). Free memory was 129.8 MB in the beginning and 98.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.7s, 78 ProgramPointsBefore, 32 ProgramPointsAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2250 CheckedPairsTotal, 55 TotalNumberOfCompositions
- PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 144 SDtfs, 405 SDslu, 561 SDs, 0 SdLazy, 508 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 404 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1232 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 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...