/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 19:11:49,529 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 19:11:49,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 19:11:49,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 19:11:49,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 19:11:49,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 19:11:49,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 19:11:49,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 19:11:49,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 19:11:49,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-18 19:11:49,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-04-18 19:11:49,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-18 19:11:49,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 19:11:49,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 19:11:49,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 19:11:49,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 19:11:49,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 19:11:49,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 19:11:49,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 19:11:49,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 19:11:49,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 19:11:49,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 19:11:49,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 19:11:49,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 19:11:49,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 19:11:49,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 19:11:49,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 19:11:49,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-18 19:11:49,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-18 19:11:49,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-18 19:11:49,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 19:11:49,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-18 19:11:49,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-18 19:11:49,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-04-18 19:11:49,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-04-18 19:11:49,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-04-18 19:11:49,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-04-18 19:11:49,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 19:11:49,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 19:11:49,614 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-NoLbe-McrStrategy.epf
[2020-04-18 19:11:49,628 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 19:11:49,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 19:11:49,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 19:11:49,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 19:11:49,629 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 19:11:49,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 19:11:49,630 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 19:11:49,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 19:11:49,630 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 19:11:49,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 19:11:49,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 19:11:49,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 19:11:49,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 19:11:49,631 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 19:11:49,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 19:11:49,632 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 19:11:49,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 19:11:49,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 19:11:49,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 19:11:49,632 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 19:11:49,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 19:11:49,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 19:11:49,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 19:11:49,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 19:11:49,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 19:11:49,634 INFO L138 SettingsManager]: * Trace refinement strategy=MCR
[2020-04-18 19:11:49,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 19:11:49,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2020-04-18 19:11:49,634 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 19:11:49,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 19:11:49,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 19:11:49,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 19:11:49,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 19:11:49,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 19:11:49,985 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 19:11:49,986 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 19:11:49,987 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i
[2020-04-18 19:11:50,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b400418/aeae87e611fd45afa1db79e1d9e77f8e/FLAG8fe9f058b
[2020-04-18 19:11:50,578 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 19:11:50,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i
[2020-04-18 19:11:50,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b400418/aeae87e611fd45afa1db79e1d9e77f8e/FLAG8fe9f058b
[2020-04-18 19:11:50,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b400418/aeae87e611fd45afa1db79e1d9e77f8e
[2020-04-18 19:11:50,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 19:11:50,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 19:11:50,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 19:11:50,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 19:11:50,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 19:11:50,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:11:50" (1/1) ...
[2020-04-18 19:11:50,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a8bb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:50, skipping insertion in model container
[2020-04-18 19:11:50,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:11:50" (1/1) ...
[2020-04-18 19:11:50,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 19:11:50,968 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 19:11:51,494 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 19:11:51,511 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 19:11:51,582 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 19:11:51,653 INFO L208 MainTranslator]: Completed translation
[2020-04-18 19:11:51,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51 WrapperNode
[2020-04-18 19:11:51,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 19:11:51,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 19:11:51,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 19:11:51,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 19:11:51,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 19:11:51,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 19:11:51,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 19:11:51,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 19:11:51,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (1/1) ...
[2020-04-18 19:11:51,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 19:11:51,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 19:11:51,732 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 19:11:51,732 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 19:11:51,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (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 19:11:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 19:11:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 19:11:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 19:11:51,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 19:11:51,792 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 19:11:51,792 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 19:11:51,793 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 19:11:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 19:11:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 19:11:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 19:11:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 19:11:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 19:11:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 19:11:51,797 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 19:11:52,146 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 19:11:52,146 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 19:11:52,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:11:52 BoogieIcfgContainer
[2020-04-18 19:11:52,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 19:11:52,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 19:11:52,152 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 19:11:52,155 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 19:11:52,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:11:50" (1/3) ...
[2020-04-18 19:11:52,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cadc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:11:52, skipping insertion in model container
[2020-04-18 19:11:52,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:51" (2/3) ...
[2020-04-18 19:11:52,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cadc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:11:52, skipping insertion in model container
[2020-04-18 19:11:52,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:11:52" (3/3) ...
[2020-04-18 19:11:52,159 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i
[2020-04-18 19:11:52,169 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 19:11:52,170 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 19:11:52,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 19:11:52,177 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 19:11:52,205 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,205 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,206 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,207 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,208 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,208 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,209 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,209 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,209 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,209 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,210 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,210 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,211 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,211 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,211 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,211 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,212 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,212 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,216 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,217 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,217 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,217 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,225 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,226 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,226 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,226 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,229 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,229 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,229 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,229 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 19:11:52,250 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 19:11:52,269 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 19:11:52,269 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 19:11:52,269 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 19:11:52,270 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 19:11:52,270 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 19:11:52,270 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 19:11:52,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 19:11:52,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 19:11:52,282 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow
[2020-04-18 19:11:52,733 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states.
[2020-04-18 19:11:52,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states.
[2020-04-18 19:11:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-04-18 19:11:52,775 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:52,776 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:52,777 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:52,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:52,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1862511890, now seen corresponding path program 1 times
[2020-04-18 19:11:52,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:52,793 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1082078474]
[2020-04-18 19:11:52,812 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:52,830 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions.
[2020-04-18 19:11:52,833 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states.
[2020-04-18 19:11:52,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-04-18 19:11:52,834 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:52,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:52,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1862511890, now seen corresponding path program 2 times
[2020-04-18 19:11:52,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:52,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803975083]
[2020-04-18 19:11:52,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:53,313 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 19:11:53,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803975083]
[2020-04-18 19:11:53,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:53,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 19:11:53,317 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:53,322 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:53,335 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions.
[2020-04-18 19:11:53,335 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:53,390 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 19:11:53,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 19:11:53,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 19:11:53,396 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 6 states.
[2020-04-18 19:11:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:53,517 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions.
[2020-04-18 19:11:53,518 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions.
[2020-04-18 19:11:53,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:11:53,519 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1082078474]
[2020-04-18 19:11:53,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:11:53,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2020-04-18 19:11:53,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1082078474]
[2020-04-18 19:11:53,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 19:11:53,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:11:53,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 19:11:53,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2020-04-18 19:11:53,528 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 6 states.
[2020-04-18 19:11:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:54,007 INFO L93 Difference]: Finished difference Result 20295 states and 70269 transitions.
[2020-04-18 19:11:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-04-18 19:11:54,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35
[2020-04-18 19:11:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:11:54,077 INFO L225 Difference]: With dead ends: 20295
[2020-04-18 19:11:54,077 INFO L226 Difference]: Without dead ends: 6443
[2020-04-18 19:11:54,079 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-04-18 19:11:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states.
[2020-04-18 19:11:54,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 5309.
[2020-04-18 19:11:54,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5309 states.
[2020-04-18 19:11:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 17850 transitions.
[2020-04-18 19:11:54,498 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 17850 transitions. Word has length 35
[2020-04-18 19:11:54,499 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:11:54,499 INFO L479 AbstractCegarLoop]: Abstraction has 5309 states and 17850 transitions.
[2020-04-18 19:11:54,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 19:11:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 17850 transitions.
[2020-04-18 19:11:54,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-04-18 19:11:54,511 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:54,511 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:54,511 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:54,512 INFO L82 PathProgramCache]: Analyzing trace with hash 5191571, now seen corresponding path program 1 times
[2020-04-18 19:11:54,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:54,512 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1403146975]
[2020-04-18 19:11:54,514 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:54,518 INFO L259 McrAutomatonBuilder]: Finished intersection with 78 states and 117 transitions.
[2020-04-18 19:11:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states.
[2020-04-18 19:11:54,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-04-18 19:11:54,522 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:54,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:54,523 INFO L82 PathProgramCache]: Analyzing trace with hash 5191571, now seen corresponding path program 2 times
[2020-04-18 19:11:54,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:54,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126944608]
[2020-04-18 19:11:54,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:54,732 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 19:11:54,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126944608]
[2020-04-18 19:11:54,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:54,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:11:54,733 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:54,737 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:54,748 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 93 transitions.
[2020-04-18 19:11:54,749 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:54,799 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 19:11:54,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:11:54,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 19:11:54,800 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 7 states.
[2020-04-18 19:11:54,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:54,877 INFO L93 Difference]: Finished difference Result 78 states and 117 transitions.
[2020-04-18 19:11:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 117 transitions.
[2020-04-18 19:11:54,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:11:54,878 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1403146975]
[2020-04-18 19:11:54,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:11:54,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 19:11:54,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1403146975]
[2020-04-18 19:11:54,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 19:11:54,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:11:54,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:11:54,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2020-04-18 19:11:54,880 INFO L87 Difference]: Start difference. First operand 5309 states and 17850 transitions. Second operand 7 states.
[2020-04-18 19:11:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:55,226 INFO L93 Difference]: Finished difference Result 7791 states and 25742 transitions.
[2020-04-18 19:11:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-04-18 19:11:55,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37
[2020-04-18 19:11:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:11:55,374 INFO L225 Difference]: With dead ends: 7791
[2020-04-18 19:11:55,374 INFO L226 Difference]: Without dead ends: 5843
[2020-04-18 19:11:55,376 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-04-18 19:11:55,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states.
[2020-04-18 19:11:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 4724.
[2020-04-18 19:11:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4724 states.
[2020-04-18 19:11:55,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4724 states to 4724 states and 15706 transitions.
[2020-04-18 19:11:55,541 INFO L78 Accepts]: Start accepts. Automaton has 4724 states and 15706 transitions. Word has length 37
[2020-04-18 19:11:55,541 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:11:55,541 INFO L479 AbstractCegarLoop]: Abstraction has 4724 states and 15706 transitions.
[2020-04-18 19:11:55,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 19:11:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 4724 states and 15706 transitions.
[2020-04-18 19:11:55,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-04-18 19:11:55,552 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:55,553 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:55,553 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:55,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:55,553 INFO L82 PathProgramCache]: Analyzing trace with hash -424900641, now seen corresponding path program 1 times
[2020-04-18 19:11:55,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:55,554 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1992006005]
[2020-04-18 19:11:55,555 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:55,557 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 110 transitions.
[2020-04-18 19:11:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states.
[2020-04-18 19:11:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-04-18 19:11:55,558 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:55,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:55,559 INFO L82 PathProgramCache]: Analyzing trace with hash -424900641, now seen corresponding path program 2 times
[2020-04-18 19:11:55,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:55,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803004340]
[2020-04-18 19:11:55,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:55,700 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 19:11:55,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803004340]
[2020-04-18 19:11:55,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:55,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:11:55,701 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:55,705 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:55,711 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 74 transitions.
[2020-04-18 19:11:55,711 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:55,778 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 19:11:55,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:11:55,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 19:11:55,779 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 7 states.
[2020-04-18 19:11:55,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:55,846 INFO L93 Difference]: Finished difference Result 75 states and 110 transitions.
[2020-04-18 19:11:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions.
[2020-04-18 19:11:55,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:11:55,847 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1992006005]
[2020-04-18 19:11:55,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:11:55,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 19:11:55,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1992006005]
[2020-04-18 19:11:55,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 19:11:55,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:11:55,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:11:55,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2020-04-18 19:11:55,849 INFO L87 Difference]: Start difference. First operand 4724 states and 15706 transitions. Second operand 7 states.
[2020-04-18 19:11:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:56,088 INFO L93 Difference]: Finished difference Result 6405 states and 21104 transitions.
[2020-04-18 19:11:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-04-18 19:11:56,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38
[2020-04-18 19:11:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:11:56,139 INFO L225 Difference]: With dead ends: 6405
[2020-04-18 19:11:56,139 INFO L226 Difference]: Without dead ends: 5493
[2020-04-18 19:11:56,140 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-04-18 19:11:56,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states.
[2020-04-18 19:11:56,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 4580.
[2020-04-18 19:11:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4580 states.
[2020-04-18 19:11:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 15166 transitions.
[2020-04-18 19:11:56,824 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 15166 transitions. Word has length 38
[2020-04-18 19:11:56,824 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:11:56,824 INFO L479 AbstractCegarLoop]: Abstraction has 4580 states and 15166 transitions.
[2020-04-18 19:11:56,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 19:11:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 15166 transitions.
[2020-04-18 19:11:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 19:11:56,837 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:56,837 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:56,838 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:56,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1411644236, now seen corresponding path program 1 times
[2020-04-18 19:11:56,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:56,839 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [950279530]
[2020-04-18 19:11:56,840 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:56,847 INFO L259 McrAutomatonBuilder]: Finished intersection with 231 states and 516 transitions.
[2020-04-18 19:11:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states.
[2020-04-18 19:11:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 19:11:56,850 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:56,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:56,851 INFO L82 PathProgramCache]: Analyzing trace with hash 47374126, now seen corresponding path program 2 times
[2020-04-18 19:11:56,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:56,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476434980]
[2020-04-18 19:11:56,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:57,009 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 19:11:57,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476434980]
[2020-04-18 19:11:57,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:57,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 19:11:57,010 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:57,014 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:57,032 INFO L259 McrAutomatonBuilder]: Finished intersection with 143 states and 284 transitions.
[2020-04-18 19:11:57,032 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:57,069 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 19:11:57,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 19:11:57,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 19:11:57,070 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 6 states.
[2020-04-18 19:11:57,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:57,232 INFO L93 Difference]: Finished difference Result 300 states and 630 transitions.
[2020-04-18 19:11:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 630 transitions.
[2020-04-18 19:11:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 19:11:57,234 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 19:11:57,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:57,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1455781586, now seen corresponding path program 3 times
[2020-04-18 19:11:57,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:57,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654823642]
[2020-04-18 19:11:57,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 19:11:57,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654823642]
[2020-04-18 19:11:57,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:57,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:11:57,344 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:57,347 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:57,365 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 274 transitions.
[2020-04-18 19:11:57,365 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:57,402 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 19:11:57,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 19:11:57,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2020-04-18 19:11:57,403 INFO L87 Difference]: Start difference. First operand 300 states and 630 transitions. Second operand 8 states.
[2020-04-18 19:11:57,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:57,573 INFO L93 Difference]: Finished difference Result 300 states and 630 transitions.
[2020-04-18 19:11:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 630 transitions.
[2020-04-18 19:11:57,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:11:57,575 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [950279530]
[2020-04-18 19:11:57,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:11:57,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 19:11:57,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [950279530]
[2020-04-18 19:11:57,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 19:11:57,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:11:57,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 19:11:57,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342
[2020-04-18 19:11:57,577 INFO L87 Difference]: Start difference. First operand 4580 states and 15166 transitions. Second operand 8 states.
[2020-04-18 19:11:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:57,682 INFO L93 Difference]: Finished difference Result 5980 states and 19436 transitions.
[2020-04-18 19:11:57,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-04-18 19:11:57,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40
[2020-04-18 19:11:57,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:11:57,700 INFO L225 Difference]: With dead ends: 5980
[2020-04-18 19:11:57,700 INFO L226 Difference]: Without dead ends: 4764
[2020-04-18 19:11:57,700 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342
[2020-04-18 19:11:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states.
[2020-04-18 19:11:57,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3896.
[2020-04-18 19:11:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3896 states.
[2020-04-18 19:11:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 12781 transitions.
[2020-04-18 19:11:57,868 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 12781 transitions. Word has length 40
[2020-04-18 19:11:57,869 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:11:57,869 INFO L479 AbstractCegarLoop]: Abstraction has 3896 states and 12781 transitions.
[2020-04-18 19:11:57,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 19:11:57,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 12781 transitions.
[2020-04-18 19:11:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 19:11:57,879 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:57,879 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:57,879 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:57,880 INFO L82 PathProgramCache]: Analyzing trace with hash -427296066, now seen corresponding path program 1 times
[2020-04-18 19:11:57,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:57,880 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1811395751]
[2020-04-18 19:11:57,881 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:57,885 INFO L259 McrAutomatonBuilder]: Finished intersection with 187 states and 404 transitions.
[2020-04-18 19:11:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states.
[2020-04-18 19:11:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-04-18 19:11:57,887 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:57,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:57,887 INFO L82 PathProgramCache]: Analyzing trace with hash -427296066, now seen corresponding path program 2 times
[2020-04-18 19:11:57,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:57,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132444485]
[2020-04-18 19:11:57,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:58,001 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 19:11:58,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132444485]
[2020-04-18 19:11:58,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:58,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:11:58,002 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:58,005 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:58,018 INFO L259 McrAutomatonBuilder]: Finished intersection with 121 states and 236 transitions.
[2020-04-18 19:11:58,018 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:58,072 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 19:11:58,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 19:11:58,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-04-18 19:11:58,073 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 8 states.
[2020-04-18 19:11:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:58,120 INFO L93 Difference]: Finished difference Result 187 states and 404 transitions.
[2020-04-18 19:11:58,121 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 404 transitions.
[2020-04-18 19:11:58,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:11:58,122 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1811395751]
[2020-04-18 19:11:58,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:11:58,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 19:11:58,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1811395751]
[2020-04-18 19:11:58,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 19:11:58,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:11:58,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 19:11:58,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-04-18 19:11:58,124 INFO L87 Difference]: Start difference. First operand 3896 states and 12781 transitions. Second operand 8 states.
[2020-04-18 19:11:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:58,398 INFO L93 Difference]: Finished difference Result 6201 states and 20087 transitions.
[2020-04-18 19:11:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 19:11:58,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40
[2020-04-18 19:11:58,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:11:58,419 INFO L225 Difference]: With dead ends: 6201
[2020-04-18 19:11:58,420 INFO L226 Difference]: Without dead ends: 5321
[2020-04-18 19:11:58,421 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342
[2020-04-18 19:11:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5321 states.
[2020-04-18 19:11:58,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5321 to 3656.
[2020-04-18 19:11:58,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states.
[2020-04-18 19:11:58,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 11929 transitions.
[2020-04-18 19:11:58,563 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 11929 transitions. Word has length 40
[2020-04-18 19:11:58,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:11:58,563 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 11929 transitions.
[2020-04-18 19:11:58,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 19:11:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 11929 transitions.
[2020-04-18 19:11:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-04-18 19:11:58,571 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:58,572 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:58,572 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:58,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:58,572 INFO L82 PathProgramCache]: Analyzing trace with hash 730747382, now seen corresponding path program 1 times
[2020-04-18 19:11:58,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:58,573 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [727113921]
[2020-04-18 19:11:58,574 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:58,578 INFO L259 McrAutomatonBuilder]: Finished intersection with 255 states and 575 transitions.
[2020-04-18 19:11:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states.
[2020-04-18 19:11:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-04-18 19:11:58,581 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:58,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:58,582 INFO L82 PathProgramCache]: Analyzing trace with hash 730747382, now seen corresponding path program 2 times
[2020-04-18 19:11:58,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:58,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613558070]
[2020-04-18 19:11:58,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:58,761 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 19:11:58,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613558070]
[2020-04-18 19:11:58,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:58,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-04-18 19:11:58,763 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:58,767 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:58,783 INFO L259 McrAutomatonBuilder]: Finished intersection with 151 states and 301 transitions.
[2020-04-18 19:11:58,783 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:58,830 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times.
[2020-04-18 19:11:58,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 19:11:58,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2020-04-18 19:11:58,831 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 8 states.
[2020-04-18 19:11:58,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:58,971 INFO L93 Difference]: Finished difference Result 255 states and 575 transitions.
[2020-04-18 19:11:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 575 transitions.
[2020-04-18 19:11:58,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:11:58,972 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [727113921]
[2020-04-18 19:11:58,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:11:58,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-04-18 19:11:58,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [727113921]
[2020-04-18 19:11:58,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-04-18 19:11:58,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:11:58,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 19:11:58,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2020-04-18 19:11:58,974 INFO L87 Difference]: Start difference. First operand 3656 states and 11929 transitions. Second operand 8 states.
[2020-04-18 19:11:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:59,116 INFO L93 Difference]: Finished difference Result 5264 states and 16991 transitions.
[2020-04-18 19:11:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-04-18 19:11:59,117 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41
[2020-04-18 19:11:59,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:11:59,129 INFO L225 Difference]: With dead ends: 5264
[2020-04-18 19:11:59,130 INFO L226 Difference]: Without dead ends: 2797
[2020-04-18 19:11:59,130 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2020-04-18 19:11:59,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states.
[2020-04-18 19:11:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2385.
[2020-04-18 19:11:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2385 states.
[2020-04-18 19:11:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 7573 transitions.
[2020-04-18 19:11:59,199 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 7573 transitions. Word has length 41
[2020-04-18 19:11:59,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:11:59,200 INFO L479 AbstractCegarLoop]: Abstraction has 2385 states and 7573 transitions.
[2020-04-18 19:11:59,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-04-18 19:11:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 7573 transitions.
[2020-04-18 19:11:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-04-18 19:11:59,206 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:11:59,206 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:11:59,206 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:11:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:59,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1555771325, now seen corresponding path program 1 times
[2020-04-18 19:11:59,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:11:59,207 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1567841900]
[2020-04-18 19:11:59,208 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:59,222 INFO L259 McrAutomatonBuilder]: Finished intersection with 699 states and 2079 transitions.
[2020-04-18 19:11:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states.
[2020-04-18 19:11:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-04-18 19:11:59,230 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:11:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:59,230 INFO L82 PathProgramCache]: Analyzing trace with hash -336476045, now seen corresponding path program 2 times
[2020-04-18 19:11:59,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:59,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001027285]
[2020-04-18 19:11:59,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 19:11:59,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001027285]
[2020-04-18 19:11:59,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:59,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:11:59,318 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:59,322 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:59,352 INFO L259 McrAutomatonBuilder]: Finished intersection with 226 states and 529 transitions.
[2020-04-18 19:11:59,352 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:59,393 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 19:11:59,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:11:59,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 19:11:59,393 INFO L87 Difference]: Start difference. First operand 699 states. Second operand 7 states.
[2020-04-18 19:11:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:11:59,691 INFO L93 Difference]: Finished difference Result 1051 states and 3033 transitions.
[2020-04-18 19:11:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 3033 transitions.
[2020-04-18 19:11:59,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-04-18 19:11:59,694 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 19:11:59,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:11:59,694 INFO L82 PathProgramCache]: Analyzing trace with hash 393526881, now seen corresponding path program 3 times
[2020-04-18 19:11:59,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:11:59,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293348811]
[2020-04-18 19:11:59,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:11:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:11:59,781 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 19:11:59,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293348811]
[2020-04-18 19:11:59,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:11:59,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:11:59,782 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:11:59,786 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:11:59,831 INFO L259 McrAutomatonBuilder]: Finished intersection with 227 states and 531 transitions.
[2020-04-18 19:11:59,832 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:11:59,867 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 19:11:59,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:11:59,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272
[2020-04-18 19:11:59,868 INFO L87 Difference]: Start difference. First operand 1051 states and 3033 transitions. Second operand 7 states.
[2020-04-18 19:12:00,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:00,110 INFO L93 Difference]: Finished difference Result 1233 states and 3332 transitions.
[2020-04-18 19:12:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 3332 transitions.
[2020-04-18 19:12:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-04-18 19:12:00,113 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 19:12:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:00,113 INFO L82 PathProgramCache]: Analyzing trace with hash -153459941, now seen corresponding path program 4 times
[2020-04-18 19:12:00,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:00,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145221021]
[2020-04-18 19:12:00,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:00,220 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 19:12:00,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145221021]
[2020-04-18 19:12:00,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:00,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:00,221 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:00,225 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:00,257 INFO L259 McrAutomatonBuilder]: Finished intersection with 219 states and 504 transitions.
[2020-04-18 19:12:00,258 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:00,277 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 19:12:00,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:00,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600
[2020-04-18 19:12:00,279 INFO L87 Difference]: Start difference. First operand 1233 states and 3332 transitions. Second operand 7 states.
[2020-04-18 19:12:00,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:00,550 INFO L93 Difference]: Finished difference Result 1407 states and 3618 transitions.
[2020-04-18 19:12:00,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3618 transitions.
[2020-04-18 19:12:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-04-18 19:12:00,553 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 19:12:00,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:00,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1645635783, now seen corresponding path program 5 times
[2020-04-18 19:12:00,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:00,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620109599]
[2020-04-18 19:12:00,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:00,678 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 19:12:00,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620109599]
[2020-04-18 19:12:00,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:00,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 19:12:00,681 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:00,685 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:00,718 INFO L259 McrAutomatonBuilder]: Finished intersection with 208 states and 476 transitions.
[2020-04-18 19:12:00,718 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:00,843 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 20 times.
[2020-04-18 19:12:00,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 19:12:00,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1010, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 19:12:00,845 INFO L87 Difference]: Start difference. First operand 1407 states and 3618 transitions. Second operand 6 states.
[2020-04-18 19:12:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:00,907 INFO L93 Difference]: Finished difference Result 1407 states and 3618 transitions.
[2020-04-18 19:12:00,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3618 transitions.
[2020-04-18 19:12:00,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:12:00,911 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1567841900]
[2020-04-18 19:12:00,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:12:00,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2020-04-18 19:12:00,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1567841900]
[2020-04-18 19:12:00,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 19:12:00,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:12:00,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 19:12:00,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1214, Unknown=0, NotChecked=0, Total=1482
[2020-04-18 19:12:00,913 INFO L87 Difference]: Start difference. First operand 2385 states and 7573 transitions. Second operand 14 states.
[2020-04-18 19:12:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:02,116 INFO L93 Difference]: Finished difference Result 5482 states and 16972 transitions.
[2020-04-18 19:12:02,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states.
[2020-04-18 19:12:02,117 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43
[2020-04-18 19:12:02,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:12:02,120 INFO L225 Difference]: With dead ends: 5482
[2020-04-18 19:12:02,121 INFO L226 Difference]: Without dead ends: 1012
[2020-04-18 19:12:02,123 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=705, Invalid=4551, Unknown=0, NotChecked=0, Total=5256
[2020-04-18 19:12:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states.
[2020-04-18 19:12:02,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012.
[2020-04-18 19:12:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states.
[2020-04-18 19:12:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 3007 transitions.
[2020-04-18 19:12:02,154 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 3007 transitions. Word has length 43
[2020-04-18 19:12:02,154 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:12:02,154 INFO L479 AbstractCegarLoop]: Abstraction has 1012 states and 3007 transitions.
[2020-04-18 19:12:02,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 19:12:02,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 3007 transitions.
[2020-04-18 19:12:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-04-18 19:12:02,157 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:12:02,157 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:12:02,158 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:12:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:02,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1395128952, now seen corresponding path program 1 times
[2020-04-18 19:12:02,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:12:02,159 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [925512825]
[2020-04-18 19:12:02,161 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:02,187 INFO L259 McrAutomatonBuilder]: Finished intersection with 867 states and 2632 transitions.
[2020-04-18 19:12:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states.
[2020-04-18 19:12:02,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-04-18 19:12:02,198 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:12:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:02,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1116629972, now seen corresponding path program 2 times
[2020-04-18 19:12:02,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:02,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329321335]
[2020-04-18 19:12:02,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:02,305 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 19:12:02,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329321335]
[2020-04-18 19:12:02,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:02,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:02,306 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:02,310 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:02,324 INFO L259 McrAutomatonBuilder]: Finished intersection with 146 states and 285 transitions.
[2020-04-18 19:12:02,325 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:02,396 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 19:12:02,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:02,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 19:12:02,397 INFO L87 Difference]: Start difference. First operand 867 states. Second operand 7 states.
[2020-04-18 19:12:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:02,706 INFO L93 Difference]: Finished difference Result 1342 states and 3953 transitions.
[2020-04-18 19:12:02,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 3953 transitions.
[2020-04-18 19:12:02,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-04-18 19:12:02,709 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 19:12:02,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:02,709 INFO L82 PathProgramCache]: Analyzing trace with hash -386627046, now seen corresponding path program 3 times
[2020-04-18 19:12:02,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:02,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473549821]
[2020-04-18 19:12:02,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:02,788 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 19:12:02,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473549821]
[2020-04-18 19:12:02,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:02,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:02,789 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:02,793 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:02,810 INFO L259 McrAutomatonBuilder]: Finished intersection with 149 states and 292 transitions.
[2020-04-18 19:12:02,810 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:02,830 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 19:12:02,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:02,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272
[2020-04-18 19:12:02,831 INFO L87 Difference]: Start difference. First operand 1342 states and 3953 transitions. Second operand 7 states.
[2020-04-18 19:12:03,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:03,046 INFO L93 Difference]: Finished difference Result 1643 states and 4547 transitions.
[2020-04-18 19:12:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 4547 transitions.
[2020-04-18 19:12:03,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-04-18 19:12:03,048 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 19:12:03,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:03,049 INFO L82 PathProgramCache]: Analyzing trace with hash -163349344, now seen corresponding path program 4 times
[2020-04-18 19:12:03,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:03,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004075039]
[2020-04-18 19:12:03,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:03,119 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 19:12:03,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004075039]
[2020-04-18 19:12:03,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:03,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:03,121 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:03,124 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:03,150 INFO L259 McrAutomatonBuilder]: Finished intersection with 191 states and 412 transitions.
[2020-04-18 19:12:03,150 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:03,172 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 19:12:03,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:03,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600
[2020-04-18 19:12:03,173 INFO L87 Difference]: Start difference. First operand 1643 states and 4547 transitions. Second operand 7 states.
[2020-04-18 19:12:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:03,393 INFO L93 Difference]: Finished difference Result 1991 states and 5293 transitions.
[2020-04-18 19:12:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 5293 transitions.
[2020-04-18 19:12:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-04-18 19:12:03,397 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 19:12:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:03,398 INFO L82 PathProgramCache]: Analyzing trace with hash -989091378, now seen corresponding path program 5 times
[2020-04-18 19:12:03,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:03,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108102156]
[2020-04-18 19:12:03,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:03,487 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 19:12:03,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108102156]
[2020-04-18 19:12:03,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:03,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:03,488 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:03,491 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:03,516 INFO L259 McrAutomatonBuilder]: Finished intersection with 174 states and 365 transitions.
[2020-04-18 19:12:03,516 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:03,631 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times.
[2020-04-18 19:12:03,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:03,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1079, Unknown=0, NotChecked=0, Total=1332
[2020-04-18 19:12:03,632 INFO L87 Difference]: Start difference. First operand 1991 states and 5293 transitions. Second operand 7 states.
[2020-04-18 19:12:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:03,756 INFO L93 Difference]: Finished difference Result 1991 states and 5293 transitions.
[2020-04-18 19:12:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 5293 transitions.
[2020-04-18 19:12:03,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:12:03,761 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [925512825]
[2020-04-18 19:12:03,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:12:03,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 19:12:03,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [925512825]
[2020-04-18 19:12:03,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-04-18 19:12:03,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:12:03,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-04-18 19:12:03,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1508, Unknown=0, NotChecked=0, Total=1806
[2020-04-18 19:12:03,763 INFO L87 Difference]: Start difference. First operand 1012 states and 3007 transitions. Second operand 15 states.
[2020-04-18 19:12:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:04,210 INFO L93 Difference]: Finished difference Result 904 states and 2587 transitions.
[2020-04-18 19:12:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2020-04-18 19:12:04,210 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 44
[2020-04-18 19:12:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:12:04,212 INFO L225 Difference]: With dead ends: 904
[2020-04-18 19:12:04,212 INFO L226 Difference]: Without dead ends: 652
[2020-04-18 19:12:04,214 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=473, Invalid=2833, Unknown=0, NotChecked=0, Total=3306
[2020-04-18 19:12:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states.
[2020-04-18 19:12:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652.
[2020-04-18 19:12:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states.
[2020-04-18 19:12:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1822 transitions.
[2020-04-18 19:12:04,230 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1822 transitions. Word has length 44
[2020-04-18 19:12:04,230 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:12:04,230 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 1822 transitions.
[2020-04-18 19:12:04,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-04-18 19:12:04,230 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1822 transitions.
[2020-04-18 19:12:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-04-18 19:12:04,231 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 19:12:04,232 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 19:12:04,232 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 19:12:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1761307537, now seen corresponding path program 1 times
[2020-04-18 19:12:04,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 19:12:04,233 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [342480908]
[2020-04-18 19:12:04,234 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:04,271 INFO L259 McrAutomatonBuilder]: Finished intersection with 1062 states and 3293 transitions.
[2020-04-18 19:12:04,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states.
[2020-04-18 19:12:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-04-18 19:12:04,286 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 19:12:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 600761379, now seen corresponding path program 2 times
[2020-04-18 19:12:04,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:04,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275671607]
[2020-04-18 19:12:04,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:04,371 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 19:12:04,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275671607]
[2020-04-18 19:12:04,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:04,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:04,373 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:04,379 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:04,401 INFO L259 McrAutomatonBuilder]: Finished intersection with 160 states and 313 transitions.
[2020-04-18 19:12:04,401 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:04,435 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 19:12:04,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:04,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-04-18 19:12:04,436 INFO L87 Difference]: Start difference. First operand 1062 states. Second operand 7 states.
[2020-04-18 19:12:04,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:04,663 INFO L93 Difference]: Finished difference Result 1342 states and 3935 transitions.
[2020-04-18 19:12:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 3935 transitions.
[2020-04-18 19:12:04,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-04-18 19:12:04,666 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 19:12:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1067564451, now seen corresponding path program 3 times
[2020-04-18 19:12:04,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:04,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683763066]
[2020-04-18 19:12:04,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:04,752 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 19:12:04,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683763066]
[2020-04-18 19:12:04,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:04,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:04,753 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:04,757 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:04,785 INFO L259 McrAutomatonBuilder]: Finished intersection with 202 states and 433 transitions.
[2020-04-18 19:12:04,785 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:04,805 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 19:12:04,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:04,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306
[2020-04-18 19:12:04,806 INFO L87 Difference]: Start difference. First operand 1342 states and 3935 transitions. Second operand 7 states.
[2020-04-18 19:12:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:05,095 INFO L93 Difference]: Finished difference Result 2038 states and 5591 transitions.
[2020-04-18 19:12:05,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 5591 transitions.
[2020-04-18 19:12:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-04-18 19:12:05,099 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 19:12:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 19:12:05,099 INFO L82 PathProgramCache]: Analyzing trace with hash -299324393, now seen corresponding path program 4 times
[2020-04-18 19:12:05,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 19:12:05,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699101982]
[2020-04-18 19:12:05,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 19:12:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 19:12:05,200 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 19:12:05,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699101982]
[2020-04-18 19:12:05,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 19:12:05,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 19:12:05,201 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 19:12:05,205 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 19:12:05,230 INFO L259 McrAutomatonBuilder]: Finished intersection with 195 states and 414 transitions.
[2020-04-18 19:12:05,230 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 19:12:05,329 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times.
[2020-04-18 19:12:05,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 19:12:05,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056
[2020-04-18 19:12:05,330 INFO L87 Difference]: Start difference. First operand 2038 states and 5591 transitions. Second operand 7 states.
[2020-04-18 19:12:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:05,580 INFO L93 Difference]: Finished difference Result 2038 states and 5591 transitions.
[2020-04-18 19:12:05,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 5591 transitions.
[2020-04-18 19:12:05,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:12:05,584 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [342480908]
[2020-04-18 19:12:05,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 19:12:05,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 19:12:05,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [342480908]
[2020-04-18 19:12:05,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 19:12:05,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 19:12:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 19:12:05,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1400, Unknown=0, NotChecked=0, Total=1640
[2020-04-18 19:12:05,586 INFO L87 Difference]: Start difference. First operand 652 states and 1822 transitions. Second operand 14 states.
[2020-04-18 19:12:05,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 19:12:05,829 INFO L93 Difference]: Finished difference Result 355 states and 931 transitions.
[2020-04-18 19:12:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-04-18 19:12:05,830 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45
[2020-04-18 19:12:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 19:12:05,830 INFO L225 Difference]: With dead ends: 355
[2020-04-18 19:12:05,831 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 19:12:05,832 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=321, Invalid=2129, Unknown=0, NotChecked=0, Total=2450
[2020-04-18 19:12:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 19:12:05,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 19:12:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 19:12:05,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 19:12:05,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45
[2020-04-18 19:12:05,833 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 19:12:05,834 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 19:12:05,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 19:12:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 19:12:05,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 19:12:05,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:12:05 BasicIcfg
[2020-04-18 19:12:05,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 19:12:05,841 INFO L168 Benchmark]: Toolchain (without parser) took 14953.31 ms. Allocated memory was 144.7 MB in the beginning and 671.1 MB in the end (delta: 526.4 MB). Free memory was 101.5 MB in the beginning and 235.5 MB in the end (delta: -134.0 MB). Peak memory consumption was 392.3 MB. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,842 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.95 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 157.7 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.93 ms. Allocated memory is still 201.3 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,844 INFO L168 Benchmark]: Boogie Preprocessor took 27.50 ms. Allocated memory is still 201.3 MB. Free memory was 155.7 MB in the beginning and 154.7 MB in the end (delta: 982.0 kB). Peak memory consumption was 982.0 kB. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,844 INFO L168 Benchmark]: RCFGBuilder took 418.69 ms. Allocated memory is still 201.3 MB. Free memory was 154.7 MB in the beginning and 132.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,845 INFO L168 Benchmark]: TraceAbstraction took 13687.19 ms. Allocated memory was 201.3 MB in the beginning and 671.1 MB in the end (delta: 469.8 MB). Free memory was 131.8 MB in the beginning and 235.5 MB in the end (delta: -103.7 MB). Peak memory consumption was 366.0 MB. Max. memory is 7.1 GB.
[2020-04-18 19:12:05,848 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 749.95 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 157.7 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 49.93 ms. Allocated memory is still 201.3 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 27.50 ms. Allocated memory is still 201.3 MB. Free memory was 155.7 MB in the beginning and 154.7 MB in the end (delta: 982.0 kB). Peak memory consumption was 982.0 kB. Max. memory is 7.1 GB.
* RCFGBuilder took 418.69 ms. Allocated memory is still 201.3 MB. Free memory was 154.7 MB in the beginning and 132.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 13687.19 ms. Allocated memory was 201.3 MB in the beginning and 671.1 MB in the end (delta: 469.8 MB). Free memory was 131.8 MB in the beginning and 235.5 MB in the end (delta: -103.7 MB). Peak memory consumption was 366.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 952 SDtfs, 1921 SDslu, 4861 SDs, 0 SdLazy, 1071 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1166 GetRequests, 909 SyntacticMatches, 0 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3783 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8471occurred 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: 1.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 6111 StatesRemovedByMinimization, 6 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...