/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-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 15:58:05,714 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 15:58:05,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 15:58:05,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 15:58:05,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 15:58:05,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 15:58:05,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 15:58:05,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 15:58:05,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 15:58:05,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-04-18 15:58:05,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-18 15:58:05,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 15:58:05,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 15:58:05,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 15:58:05,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 15:58:05,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 15:58:05,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 15:58:05,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 15:58:05,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 15:58:05,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 15:58:05,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 15:58:05,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 15:58:05,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 15:58:05,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-04-18 15:58:05,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 15:58:05,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-04-18 15:58:05,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 15:58:05,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 15:58:05,780 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-VariableLbe-McrStrategy.epf
[2020-04-18 15:58:05,794 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 15:58:05,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 15:58:05,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 15:58:05,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 15:58:05,796 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 15:58:05,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 15:58:05,797 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 15:58:05,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 15:58:05,797 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 15:58:05,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 15:58:05,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 15:58:05,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 15:58:05,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 15:58:05,798 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 15:58:05,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 15:58:05,798 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 15:58:05,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 15:58:05,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 15:58:05,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 15:58:05,799 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 15:58:05,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 15:58:05,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 15:58:05,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 15:58:05,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 15:58:05,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 15:58:05,800 INFO L138 SettingsManager]: * Trace refinement strategy=MCR
[2020-04-18 15:58:05,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 15:58:05,801 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-04-18 15:58:05,801 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 15:58:05,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 15:58:05,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 15:58:06,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 15:58:06,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 15:58:06,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 15:58:06,120 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 15:58:06,120 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 15:58:06,121 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i
[2020-04-18 15:58:06,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235ec695f/92a5f10ffc4a452fb8aafda5aecded9a/FLAGb21f0a2d8
[2020-04-18 15:58:06,825 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 15:58:06,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i
[2020-04-18 15:58:06,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235ec695f/92a5f10ffc4a452fb8aafda5aecded9a/FLAGb21f0a2d8
[2020-04-18 15:58:07,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235ec695f/92a5f10ffc4a452fb8aafda5aecded9a
[2020-04-18 15:58:07,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 15:58:07,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 15:58:07,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 15:58:07,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 15:58:07,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 15:58:07,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423fcc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07, skipping insertion in model container
[2020-04-18 15:58:07,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 15:58:07,116 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 15:58:07,671 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 15:58:07,687 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 15:58:07,750 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 15:58:07,825 INFO L208 MainTranslator]: Completed translation
[2020-04-18 15:58:07,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07 WrapperNode
[2020-04-18 15:58:07,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 15:58:07,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 15:58:07,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 15:58:07,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 15:58:07,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 15:58:07,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 15:58:07,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 15:58:07,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 15:58:07,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (1/1) ...
[2020-04-18 15:58:07,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 15:58:07,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 15:58:07,939 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 15:58:07,939 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 15:58:07,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (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 15:58:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure thr2
[2020-04-18 15:58:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2
[2020-04-18 15:58:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2020-04-18 15:58:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2020-04-18 15:58:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 15:58:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 15:58:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 15:58:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 15:58:07,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 15:58:08,000 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 15:58:08,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 15:58:08,397 INFO L295 CfgBuilder]: Removed 9 assume(true) statements.
[2020-04-18 15:58:08,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:58:08 BoogieIcfgContainer
[2020-04-18 15:58:08,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 15:58:08,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 15:58:08,403 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 15:58:08,406 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 15:58:08,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:58:07" (1/3) ...
[2020-04-18 15:58:08,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8f72a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:58:08, skipping insertion in model container
[2020-04-18 15:58:08,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:58:07" (2/3) ...
[2020-04-18 15:58:08,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8f72a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:58:08, skipping insertion in model container
[2020-04-18 15:58:08,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:58:08" (3/3) ...
[2020-04-18 15:58:08,410 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i
[2020-04-18 15:58:08,421 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 15:58:08,421 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 15:58:08,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 15:58:08,430 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 15:58:08,454 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,455 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,455 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,456 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,456 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,456 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,457 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,460 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,460 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,460 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,464 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,465 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,465 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,465 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,466 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,472 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,472 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,473 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,473 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,473 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,474 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:08,492 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 15:58:08,508 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 15:58:08,508 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 15:58:08,508 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 15:58:08,508 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 15:58:08,509 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 15:58:08,509 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 15:58:08,509 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 15:58:08,509 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 15:58:08,525 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 58 transitions, 126 flow
[2020-04-18 15:58:08,527 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 126 flow
[2020-04-18 15:58:08,594 INFO L129 PetriNetUnfolder]: 4/68 cut-off events.
[2020-04-18 15:58:08,595 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 15:58:08,602 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 68 events. 4/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 48. Up to 4 conditions per place.
[2020-04-18 15:58:08,605 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 126 flow
[2020-04-18 15:58:08,624 INFO L129 PetriNetUnfolder]: 4/68 cut-off events.
[2020-04-18 15:58:08,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 15:58:08,626 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 68 events. 4/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 48. Up to 4 conditions per place.
[2020-04-18 15:58:08,628 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 592
[2020-04-18 15:58:08,629 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 15:58:09,971 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2020-04-18 15:58:10,341 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69
[2020-04-18 15:58:10,579 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 66
[2020-04-18 15:58:10,810 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70
[2020-04-18 15:58:10,891 INFO L206 etLargeBlockEncoding]: Checked pairs total: 486
[2020-04-18 15:58:10,891 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51
[2020-04-18 15:58:10,895 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow
[2020-04-18 15:58:10,905 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states.
[2020-04-18 15:58:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states.
[2020-04-18 15:58:10,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:10,914 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:10,915 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1]
[2020-04-18 15:58:10,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:10,922 INFO L82 PathProgramCache]: Analyzing trace with hash 229686, now seen corresponding path program 1 times
[2020-04-18 15:58:10,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:10,929 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1503047025]
[2020-04-18 15:58:10,945 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:10,957 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states.
[2020-04-18 15:58:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:10,959 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:10,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:10,959 INFO L82 PathProgramCache]: Analyzing trace with hash 229686, now seen corresponding path program 2 times
[2020-04-18 15:58:10,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:10,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699059193]
[2020-04-18 15:58:10,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:11,131 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 15:58:11,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699059193]
[2020-04-18 15:58:11,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:11,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 15:58:11,134 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:11,135 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:11,136 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:11,136 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:11,144 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:11,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:11,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:11,150 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states.
[2020-04-18 15:58:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:11,154 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions.
[2020-04-18 15:58:11,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions.
[2020-04-18 15:58:11,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:11,155 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1503047025]
[2020-04-18 15:58:11,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:11,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 15:58:11,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1503047025]
[2020-04-18 15:58:11,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 15:58:11,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:11,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:11,163 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states.
[2020-04-18 15:58:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:11,192 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions.
[2020-04-18 15:58:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 15:58:11,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2020-04-18 15:58:11,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:11,204 INFO L225 Difference]: With dead ends: 35
[2020-04-18 15:58:11,204 INFO L226 Difference]: Without dead ends: 31
[2020-04-18 15:58:11,206 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2020-04-18 15:58:11,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2020-04-18 15:58:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2020-04-18 15:58:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions.
[2020-04-18 15:58:11,245 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3
[2020-04-18 15:58:11,245 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:11,245 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions.
[2020-04-18 15:58:11,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 15:58:11,245 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions.
[2020-04-18 15:58:11,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-04-18 15:58:11,246 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:11,246 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:11,247 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:11,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:11,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1647647331, now seen corresponding path program 1 times
[2020-04-18 15:58:11,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:11,248 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [629649272]
[2020-04-18 15:58:11,248 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:11,249 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 15 transitions.
[2020-04-18 15:58:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states.
[2020-04-18 15:58:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-04-18 15:58:11,251 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:11,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:11,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1671590121, now seen corresponding path program 2 times
[2020-04-18 15:58:11,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:11,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682633826]
[2020-04-18 15:58:11,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:11,310 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 15:58:11,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682633826]
[2020-04-18 15:58:11,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:11,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:11,311 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:11,314 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:11,321 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions.
[2020-04-18 15:58:11,339 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:11,344 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:11,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:11,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:11,345 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states.
[2020-04-18 15:58:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:11,352 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions.
[2020-04-18 15:58:11,352 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2020-04-18 15:58:11,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-04-18 15:58:11,353 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:11,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:11,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1647647331, now seen corresponding path program 3 times
[2020-04-18 15:58:11,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:11,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901263564]
[2020-04-18 15:58:11,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:11,417 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 15:58:11,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901263564]
[2020-04-18 15:58:11,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:11,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:11,419 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:11,419 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:11,421 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions.
[2020-04-18 15:58:11,421 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:11,426 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:11,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 15:58:11,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-18 15:58:11,427 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 4 states.
[2020-04-18 15:58:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:11,435 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions.
[2020-04-18 15:58:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2020-04-18 15:58:11,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:11,436 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [629649272]
[2020-04-18 15:58:11,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:11,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 15:58:11,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [629649272]
[2020-04-18 15:58:11,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 15:58:11,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:11,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 15:58:11,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-18 15:58:11,438 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states.
[2020-04-18 15:58:11,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:11,456 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions.
[2020-04-18 15:58:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-18 15:58:11,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7
[2020-04-18 15:58:11,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:11,457 INFO L225 Difference]: With dead ends: 26
[2020-04-18 15:58:11,457 INFO L226 Difference]: Without dead ends: 24
[2020-04-18 15:58:11,459 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-18 15:58:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2020-04-18 15:58:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2020-04-18 15:58:11,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2020-04-18 15:58:11,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions.
[2020-04-18 15:58:11,463 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7
[2020-04-18 15:58:11,464 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:11,464 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions.
[2020-04-18 15:58:11,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 15:58:11,464 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions.
[2020-04-18 15:58:11,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 15:58:11,465 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:11,465 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:11,465 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:11,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash -462538936, now seen corresponding path program 1 times
[2020-04-18 15:58:11,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:11,466 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [762674515]
[2020-04-18 15:58:11,467 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:11,467 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 15:58:11,468 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 15:58:11,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 15:58:11,468 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:11,469 INFO L82 PathProgramCache]: Analyzing trace with hash -462538936, now seen corresponding path program 2 times
[2020-04-18 15:58:11,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:11,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237081284]
[2020-04-18 15:58:11,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:11,551 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-04-18 15:58:11,552 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace
[2020-04-18 15:58:11,552 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-04-18 15:58:11,552 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-04-18 15:58:11,553 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-04-18 15:58:11,554 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2020-04-18 15:58:11,562 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,562 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,562 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,562 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,563 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,563 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,563 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,563 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,564 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,564 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,564 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,564 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,564 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,564 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,565 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,566 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,566 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,567 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,567 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,567 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,567 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,568 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,568 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,568 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,568 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,568 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,568 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,569 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,569 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,569 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,570 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,570 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,570 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,570 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,572 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,572 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,572 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,572 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,572 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,574 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,574 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,575 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,575 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,576 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,576 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,576 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,577 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,577 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,577 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:11,578 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-04-18 15:58:11,578 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 15:58:11,579 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 15:58:11,579 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 15:58:11,579 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 15:58:11,579 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 15:58:11,579 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 15:58:11,579 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 15:58:11,579 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 15:58:11,581 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 74 transitions, 172 flow
[2020-04-18 15:58:11,582 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 80 places, 74 transitions, 172 flow
[2020-04-18 15:58:11,601 INFO L129 PetriNetUnfolder]: 5/89 cut-off events.
[2020-04-18 15:58:11,601 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2020-04-18 15:58:11,602 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 89 events. 5/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 98. Up to 6 conditions per place.
[2020-04-18 15:58:11,604 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 80 places, 74 transitions, 172 flow
[2020-04-18 15:58:11,621 INFO L129 PetriNetUnfolder]: 5/89 cut-off events.
[2020-04-18 15:58:11,622 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2020-04-18 15:58:11,623 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 89 events. 5/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 98. Up to 6 conditions per place.
[2020-04-18 15:58:11,625 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 920
[2020-04-18 15:58:11,625 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 15:58:13,095 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77
[2020-04-18 15:58:13,196 INFO L206 etLargeBlockEncoding]: Checked pairs total: 942
[2020-04-18 15:58:13,196 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62
[2020-04-18 15:58:13,197 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow
[2020-04-18 15:58:13,209 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states.
[2020-04-18 15:58:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states.
[2020-04-18 15:58:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:13,210 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:13,210 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1]
[2020-04-18 15:58:13,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:13,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,211 INFO L82 PathProgramCache]: Analyzing trace with hash 384194, now seen corresponding path program 1 times
[2020-04-18 15:58:13,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:13,211 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1540902548]
[2020-04-18 15:58:13,212 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,212 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states.
[2020-04-18 15:58:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:13,213 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:13,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,213 INFO L82 PathProgramCache]: Analyzing trace with hash 384194, now seen corresponding path program 2 times
[2020-04-18 15:58:13,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:13,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705850730]
[2020-04-18 15:58:13,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:13,265 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 15:58:13,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705850730]
[2020-04-18 15:58:13,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:13,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 15:58:13,266 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:13,267 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,267 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:13,268 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:13,273 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:13,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:13,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:13,274 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states.
[2020-04-18 15:58:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,275 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions.
[2020-04-18 15:58:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions.
[2020-04-18 15:58:13,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:13,278 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1540902548]
[2020-04-18 15:58:13,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:13,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 15:58:13,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1540902548]
[2020-04-18 15:58:13,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 15:58:13,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:13,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:13,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:13,280 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states.
[2020-04-18 15:58:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,326 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions.
[2020-04-18 15:58:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 15:58:13,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2020-04-18 15:58:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:13,331 INFO L225 Difference]: With dead ends: 185
[2020-04-18 15:58:13,331 INFO L226 Difference]: Without dead ends: 171
[2020-04-18 15:58:13,331 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2020-04-18 15:58:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171.
[2020-04-18 15:58:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states.
[2020-04-18 15:58:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions.
[2020-04-18 15:58:13,361 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3
[2020-04-18 15:58:13,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:13,361 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions.
[2020-04-18 15:58:13,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 15:58:13,362 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions.
[2020-04-18 15:58:13,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:13,365 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:13,365 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:13,365 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:13,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1694917346, now seen corresponding path program 1 times
[2020-04-18 15:58:13,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:13,368 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1514069457]
[2020-04-18 15:58:13,369 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,369 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 15:58:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 15:58:13,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:13,370 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1781909598, now seen corresponding path program 2 times
[2020-04-18 15:58:13,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:13,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809789446]
[2020-04-18 15:58:13,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:13,417 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 15:58:13,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809789446]
[2020-04-18 15:58:13,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:13,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:13,419 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:13,420 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,421 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 15:58:13,422 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:13,428 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:13,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:13,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:13,429 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states.
[2020-04-18 15:58:13,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,443 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:13,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:13,443 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:13,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1694917346, now seen corresponding path program 3 times
[2020-04-18 15:58:13,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:13,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386706060]
[2020-04-18 15:58:13,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:13,538 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 15:58:13,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386706060]
[2020-04-18 15:58:13,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:13,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:13,540 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:13,541 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,542 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 15:58:13,542 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:13,556 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:13,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:13,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:13,557 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states.
[2020-04-18 15:58:13,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,590 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:13,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:13,592 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1514069457]
[2020-04-18 15:58:13,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:13,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:13,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1514069457]
[2020-04-18 15:58:13,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:13,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:13,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:13,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:13,594 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states.
[2020-04-18 15:58:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,672 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions.
[2020-04-18 15:58:13,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:13,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-04-18 15:58:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:13,676 INFO L225 Difference]: With dead ends: 205
[2020-04-18 15:58:13,676 INFO L226 Difference]: Without dead ends: 201
[2020-04-18 15:58:13,676 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:13,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2020-04-18 15:58:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162.
[2020-04-18 15:58:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states.
[2020-04-18 15:58:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions.
[2020-04-18 15:58:13,697 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9
[2020-04-18 15:58:13,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:13,697 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions.
[2020-04-18 15:58:13,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions.
[2020-04-18 15:58:13,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:13,698 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:13,699 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:13,699 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:13,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1027741454, now seen corresponding path program 1 times
[2020-04-18 15:58:13,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:13,700 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [865739801]
[2020-04-18 15:58:13,701 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,702 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 15:58:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-04-18 15:58:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:13,721 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash 530709494, now seen corresponding path program 2 times
[2020-04-18 15:58:13,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:13,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928269498]
[2020-04-18 15:58:13,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:13,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928269498]
[2020-04-18 15:58:13,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:13,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:13,752 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:13,753 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,756 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions.
[2020-04-18 15:58:13,756 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:13,768 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:13,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:13,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:13,769 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states.
[2020-04-18 15:58:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,779 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:13,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:13,781 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:13,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1027741454, now seen corresponding path program 3 times
[2020-04-18 15:58:13,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:13,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665822038]
[2020-04-18 15:58:13,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:13,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:13,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665822038]
[2020-04-18 15:58:13,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:13,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:13,882 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:13,884 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:13,886 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions.
[2020-04-18 15:58:13,886 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:13,903 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:13,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:13,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:13,904 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 5 states.
[2020-04-18 15:58:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:13,938 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:13,938 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:13,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:13,939 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [865739801]
[2020-04-18 15:58:13,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:13,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:13,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [865739801]
[2020-04-18 15:58:13,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:13,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:13,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:13,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:13,941 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states.
[2020-04-18 15:58:14,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:14,000 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions.
[2020-04-18 15:58:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:14,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-18 15:58:14,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:14,003 INFO L225 Difference]: With dead ends: 189
[2020-04-18 15:58:14,003 INFO L226 Difference]: Without dead ends: 185
[2020-04-18 15:58:14,004 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:14,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2020-04-18 15:58:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153.
[2020-04-18 15:58:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states.
[2020-04-18 15:58:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions.
[2020-04-18 15:58:14,023 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13
[2020-04-18 15:58:14,024 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:14,024 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions.
[2020-04-18 15:58:14,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions.
[2020-04-18 15:58:14,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 15:58:14,025 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:14,026 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:14,026 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:14,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1792799235, now seen corresponding path program 1 times
[2020-04-18 15:58:14,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:14,027 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1669074926]
[2020-04-18 15:58:14,027 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:14,028 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions.
[2020-04-18 15:58:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states.
[2020-04-18 15:58:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 15:58:14,029 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:14,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:14,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1792799235, now seen corresponding path program 2 times
[2020-04-18 15:58:14,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:14,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36229955]
[2020-04-18 15:58:14,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:14,058 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-04-18 15:58:14,058 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace
[2020-04-18 15:58:14,058 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-04-18 15:58:14,059 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-04-18 15:58:14,059 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-04-18 15:58:14,061 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2020-04-18 15:58:14,074 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,075 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,075 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,075 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,075 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,075 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,075 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,076 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,076 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,077 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,077 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,077 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,078 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,079 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,079 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,079 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,079 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,080 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,080 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,080 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,080 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,080 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,080 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,081 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,081 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,081 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,081 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,082 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,082 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,082 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,082 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,082 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,082 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,083 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,083 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,083 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,083 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,083 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,084 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,084 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,084 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,084 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,084 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,084 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,085 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,085 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,085 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,085 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,086 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,086 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,087 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,087 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,088 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,088 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,088 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,089 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,090 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,090 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,090 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,090 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,093 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,093 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,093 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,093 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,094 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,094 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,095 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,095 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,095 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,095 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,096 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,096 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,097 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,097 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,098 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,098 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,098 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,098 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:14,099 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-04-18 15:58:14,100 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 15:58:14,100 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 15:58:14,100 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 15:58:14,100 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 15:58:14,100 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 15:58:14,100 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 15:58:14,100 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 15:58:14,101 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 15:58:14,102 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 90 transitions, 222 flow
[2020-04-18 15:58:14,103 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 90 transitions, 222 flow
[2020-04-18 15:58:14,122 INFO L129 PetriNetUnfolder]: 6/110 cut-off events.
[2020-04-18 15:58:14,122 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2020-04-18 15:58:14,124 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 110 events. 6/110 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 124. Up to 8 conditions per place.
[2020-04-18 15:58:14,126 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 90 transitions, 222 flow
[2020-04-18 15:58:14,154 INFO L129 PetriNetUnfolder]: 6/110 cut-off events.
[2020-04-18 15:58:14,154 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2020-04-18 15:58:14,156 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 110 events. 6/110 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 124. Up to 8 conditions per place.
[2020-04-18 15:58:14,161 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1308
[2020-04-18 15:58:14,161 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 15:58:15,551 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58
[2020-04-18 15:58:15,803 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75
[2020-04-18 15:58:15,881 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1426
[2020-04-18 15:58:15,881 INFO L214 etLargeBlockEncoding]: Total number of compositions: 74
[2020-04-18 15:58:15,882 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow
[2020-04-18 15:58:15,911 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states.
[2020-04-18 15:58:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states.
[2020-04-18 15:58:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:15,912 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:15,912 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1]
[2020-04-18 15:58:15,912 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:15,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:15,913 INFO L82 PathProgramCache]: Analyzing trace with hash 567457, now seen corresponding path program 1 times
[2020-04-18 15:58:15,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:15,913 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1797019186]
[2020-04-18 15:58:15,914 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:15,914 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states.
[2020-04-18 15:58:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:15,915 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:15,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:15,915 INFO L82 PathProgramCache]: Analyzing trace with hash 567457, now seen corresponding path program 2 times
[2020-04-18 15:58:15,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:15,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343694736]
[2020-04-18 15:58:15,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:15,943 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 15:58:15,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343694736]
[2020-04-18 15:58:15,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:15,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 15:58:15,944 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:15,945 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:15,945 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:15,945 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:15,950 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:15,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:15,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:15,951 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states.
[2020-04-18 15:58:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:15,951 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions.
[2020-04-18 15:58:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions.
[2020-04-18 15:58:15,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:15,952 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1797019186]
[2020-04-18 15:58:15,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:15,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 15:58:15,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1797019186]
[2020-04-18 15:58:15,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 15:58:15,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:15,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:15,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:15,955 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states.
[2020-04-18 15:58:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:15,991 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions.
[2020-04-18 15:58:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 15:58:15,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2020-04-18 15:58:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:15,997 INFO L225 Difference]: With dead ends: 600
[2020-04-18 15:58:15,997 INFO L226 Difference]: Without dead ends: 559
[2020-04-18 15:58:15,998 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:16,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states.
[2020-04-18 15:58:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559.
[2020-04-18 15:58:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states.
[2020-04-18 15:58:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions.
[2020-04-18 15:58:16,035 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3
[2020-04-18 15:58:16,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:16,036 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions.
[2020-04-18 15:58:16,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 15:58:16,036 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions.
[2020-04-18 15:58:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:16,036 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:16,037 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:16,037 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1052273544, now seen corresponding path program 1 times
[2020-04-18 15:58:16,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:16,038 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1643949151]
[2020-04-18 15:58:16,038 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,039 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 15:58:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 15:58:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:16,040 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash -990510054, now seen corresponding path program 2 times
[2020-04-18 15:58:16,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971072057]
[2020-04-18 15:58:16,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,071 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 15:58:16,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971072057]
[2020-04-18 15:58:16,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:16,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:16,072 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:16,073 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,075 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 15:58:16,075 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:16,082 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:16,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:16,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:16,083 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states.
[2020-04-18 15:58:16,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,087 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:16,088 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1052273544, now seen corresponding path program 3 times
[2020-04-18 15:58:16,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819473920]
[2020-04-18 15:58:16,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,135 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 15:58:16,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819473920]
[2020-04-18 15:58:16,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:16,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:16,137 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:16,138 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,139 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 15:58:16,139 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:16,153 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:16,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:16,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:16,154 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states.
[2020-04-18 15:58:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,182 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:16,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:16,183 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1643949151]
[2020-04-18 15:58:16,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:16,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:16,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1643949151]
[2020-04-18 15:58:16,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:16,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:16,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:16,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:16,185 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states.
[2020-04-18 15:58:16,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,274 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions.
[2020-04-18 15:58:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:16,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-04-18 15:58:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:16,283 INFO L225 Difference]: With dead ends: 817
[2020-04-18 15:58:16,283 INFO L226 Difference]: Without dead ends: 812
[2020-04-18 15:58:16,284 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:16,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states.
[2020-04-18 15:58:16,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585.
[2020-04-18 15:58:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states.
[2020-04-18 15:58:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions.
[2020-04-18 15:58:16,356 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9
[2020-04-18 15:58:16,356 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:16,356 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions.
[2020-04-18 15:58:16,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:16,357 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions.
[2020-04-18 15:58:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:16,357 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:16,358 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:16,358 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1096280394, now seen corresponding path program 1 times
[2020-04-18 15:58:16,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:16,359 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [165735872]
[2020-04-18 15:58:16,359 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,360 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 15:58:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-04-18 15:58:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:16,361 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,362 INFO L82 PathProgramCache]: Analyzing trace with hash -664066664, now seen corresponding path program 2 times
[2020-04-18 15:58:16,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137252551]
[2020-04-18 15:58:16,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:16,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137252551]
[2020-04-18 15:58:16,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:16,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:16,384 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:16,385 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,387 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions.
[2020-04-18 15:58:16,387 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:16,393 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:16,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:16,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:16,393 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states.
[2020-04-18 15:58:16,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,397 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:16,398 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1096280394, now seen corresponding path program 3 times
[2020-04-18 15:58:16,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84088656]
[2020-04-18 15:58:16,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:16,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84088656]
[2020-04-18 15:58:16,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:16,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:16,454 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:16,458 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,462 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions.
[2020-04-18 15:58:16,462 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:16,477 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:16,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:16,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:16,478 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 5 states.
[2020-04-18 15:58:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,503 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:16,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:16,504 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [165735872]
[2020-04-18 15:58:16,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:16,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:16,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [165735872]
[2020-04-18 15:58:16,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:16,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:16,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:16,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:16,506 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states.
[2020-04-18 15:58:16,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,586 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions.
[2020-04-18 15:58:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:16,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-18 15:58:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:16,593 INFO L225 Difference]: With dead ends: 843
[2020-04-18 15:58:16,594 INFO L226 Difference]: Without dead ends: 836
[2020-04-18 15:58:16,594 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states.
[2020-04-18 15:58:16,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611.
[2020-04-18 15:58:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states.
[2020-04-18 15:58:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions.
[2020-04-18 15:58:16,622 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13
[2020-04-18 15:58:16,623 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:16,623 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions.
[2020-04-18 15:58:16,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions.
[2020-04-18 15:58:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:16,624 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:16,624 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:16,624 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2044985054, now seen corresponding path program 1 times
[2020-04-18 15:58:16,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:16,625 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1474758580]
[2020-04-18 15:58:16,626 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,628 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 99 transitions.
[2020-04-18 15:58:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states.
[2020-04-18 15:58:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:16,629 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:16,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1794779836, now seen corresponding path program 2 times
[2020-04-18 15:58:16,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72562861]
[2020-04-18 15:58:16,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:16,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72562861]
[2020-04-18 15:58:16,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:16,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:16,654 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:16,656 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,663 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 61 transitions.
[2020-04-18 15:58:16,663 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:16,668 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:16,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:16,669 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states.
[2020-04-18 15:58:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,679 INFO L93 Difference]: Finished difference Result 61 states and 107 transitions.
[2020-04-18 15:58:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions.
[2020-04-18 15:58:16,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:16,680 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:16,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,680 INFO L82 PathProgramCache]: Analyzing trace with hash -2084432792, now seen corresponding path program 3 times
[2020-04-18 15:58:16,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074531139]
[2020-04-18 15:58:16,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:16,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074531139]
[2020-04-18 15:58:16,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:16,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:16,732 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:16,733 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:16,742 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 41 transitions.
[2020-04-18 15:58:16,742 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:16,760 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:58:16,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:16,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:16,761 INFO L87 Difference]: Start difference. First operand 61 states and 107 transitions. Second operand 5 states.
[2020-04-18 15:58:16,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:16,819 INFO L93 Difference]: Finished difference Result 68 states and 112 transitions.
[2020-04-18 15:58:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 112 transitions.
[2020-04-18 15:58:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:16,819 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:16,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:16,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2044985054, now seen corresponding path program 4 times
[2020-04-18 15:58:16,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:16,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970712172]
[2020-04-18 15:58:16,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:16,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970712172]
[2020-04-18 15:58:16,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477069922]
[2020-04-18 15:58:16,900 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:16,984 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:16,984 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:16,987 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:16,990 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:17,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:17,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:17,082 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:17,084 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:17,088 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions.
[2020-04-18 15:58:17,088 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:17,162 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:17,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:17,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:17,162 INFO L87 Difference]: Start difference. First operand 68 states and 112 transitions. Second operand 12 states.
[2020-04-18 15:58:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:17,337 INFO L93 Difference]: Finished difference Result 69 states and 112 transitions.
[2020-04-18 15:58:17,337 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 112 transitions.
[2020-04-18 15:58:17,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:17,338 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:17,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:17,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1258473782, now seen corresponding path program 5 times
[2020-04-18 15:58:17,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:17,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033921994]
[2020-04-18 15:58:17,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:17,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033921994]
[2020-04-18 15:58:17,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:17,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:17,410 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:17,411 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:17,416 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions.
[2020-04-18 15:58:17,417 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:17,453 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:17,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:17,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:58:17,454 INFO L87 Difference]: Start difference. First operand 69 states and 112 transitions. Second operand 7 states.
[2020-04-18 15:58:17,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:17,604 INFO L93 Difference]: Finished difference Result 72 states and 115 transitions.
[2020-04-18 15:58:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 115 transitions.
[2020-04-18 15:58:17,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:17,605 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1474758580]
[2020-04-18 15:58:17,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:17,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:17,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1474758580]
[2020-04-18 15:58:17,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:17,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:17,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:17,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:58:17,607 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 14 states.
[2020-04-18 15:58:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:18,007 INFO L93 Difference]: Finished difference Result 1142 states and 2948 transitions.
[2020-04-18 15:58:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:18,008 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15
[2020-04-18 15:58:18,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:18,016 INFO L225 Difference]: With dead ends: 1142
[2020-04-18 15:58:18,016 INFO L226 Difference]: Without dead ends: 1127
[2020-04-18 15:58:18,017 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:58:18,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states.
[2020-04-18 15:58:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 536.
[2020-04-18 15:58:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states.
[2020-04-18 15:58:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions.
[2020-04-18 15:58:18,051 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15
[2020-04-18 15:58:18,053 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:18,053 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions.
[2020-04-18 15:58:18,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions.
[2020-04-18 15:58:18,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:18,054 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:18,054 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:18,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:18,267 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:18,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:18,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1734594488, now seen corresponding path program 1 times
[2020-04-18 15:58:18,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:18,267 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1361211]
[2020-04-18 15:58:18,268 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:18,269 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 45 transitions.
[2020-04-18 15:58:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2020-04-18 15:58:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:18,269 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:18,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:18,270 INFO L82 PathProgramCache]: Analyzing trace with hash -168666902, now seen corresponding path program 2 times
[2020-04-18 15:58:18,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:18,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076161736]
[2020-04-18 15:58:18,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:18,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076161736]
[2020-04-18 15:58:18,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:18,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:18,299 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:18,300 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:18,303 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 43 transitions.
[2020-04-18 15:58:18,303 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:18,309 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:18,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:18,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:18,310 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states.
[2020-04-18 15:58:18,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:18,314 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 15:58:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 15:58:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:18,314 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:18,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:18,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1734594488, now seen corresponding path program 3 times
[2020-04-18 15:58:18,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:18,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236601397]
[2020-04-18 15:58:18,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:18,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236601397]
[2020-04-18 15:58:18,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:18,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:18,359 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:18,360 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:18,362 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions.
[2020-04-18 15:58:18,363 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:18,380 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:18,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:18,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:18,381 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states.
[2020-04-18 15:58:18,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:18,405 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 15:58:18,405 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 15:58:18,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:18,406 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1361211]
[2020-04-18 15:58:18,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:18,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:18,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1361211]
[2020-04-18 15:58:18,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:18,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:18,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:18,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:18,407 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states.
[2020-04-18 15:58:18,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:18,476 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions.
[2020-04-18 15:58:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:18,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17
[2020-04-18 15:58:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:18,482 INFO L225 Difference]: With dead ends: 736
[2020-04-18 15:58:18,482 INFO L226 Difference]: Without dead ends: 728
[2020-04-18 15:58:18,483 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states.
[2020-04-18 15:58:18,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549.
[2020-04-18 15:58:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states.
[2020-04-18 15:58:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions.
[2020-04-18 15:58:18,509 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17
[2020-04-18 15:58:18,509 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:18,510 INFO L479 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions.
[2020-04-18 15:58:18,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions.
[2020-04-18 15:58:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 15:58:18,512 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:18,512 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:18,513 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:18,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:18,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2065233823, now seen corresponding path program 1 times
[2020-04-18 15:58:18,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:18,513 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1670664646]
[2020-04-18 15:58:18,514 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:18,514 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 18 transitions.
[2020-04-18 15:58:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states.
[2020-04-18 15:58:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-18 15:58:18,515 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:18,515 INFO L82 PathProgramCache]: Analyzing trace with hash -2065233823, now seen corresponding path program 2 times
[2020-04-18 15:58:18,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:18,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705656149]
[2020-04-18 15:58:18,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:18,558 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-04-18 15:58:18,558 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace
[2020-04-18 15:58:18,558 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-04-18 15:58:18,559 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-04-18 15:58:18,559 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-04-18 15:58:18,559 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2020-04-18 15:58:18,575 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,575 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,580 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,585 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,585 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,586 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,586 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,586 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,587 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,588 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,588 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,588 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,588 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,589 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,589 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,589 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,590 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,590 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,591 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,591 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,592 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,592 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,592 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,593 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,593 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,593 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,594 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,594 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,594 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,595 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,595 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,595 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,595 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,596 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,596 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,597 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,597 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,597 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,598 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,598 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,598 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,600 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,600 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,601 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:18,602 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2020-04-18 15:58:18,603 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 15:58:18,603 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 15:58:18,603 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 15:58:18,603 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 15:58:18,603 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 15:58:18,603 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 15:58:18,603 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 15:58:18,603 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 15:58:18,605 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 106 transitions, 276 flow
[2020-04-18 15:58:18,605 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 106 transitions, 276 flow
[2020-04-18 15:58:18,628 INFO L129 PetriNetUnfolder]: 7/131 cut-off events.
[2020-04-18 15:58:18,628 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES.
[2020-04-18 15:58:18,630 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 131 events. 7/131 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 201 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 151. Up to 10 conditions per place.
[2020-04-18 15:58:18,633 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 106 transitions, 276 flow
[2020-04-18 15:58:18,653 INFO L129 PetriNetUnfolder]: 7/131 cut-off events.
[2020-04-18 15:58:18,653 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES.
[2020-04-18 15:58:18,655 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 131 events. 7/131 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 201 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 151. Up to 10 conditions per place.
[2020-04-18 15:58:18,658 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1756
[2020-04-18 15:58:18,658 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 15:58:20,771 WARN L192 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75
[2020-04-18 15:58:20,951 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75
[2020-04-18 15:58:21,078 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2033
[2020-04-18 15:58:21,078 INFO L214 etLargeBlockEncoding]: Total number of compositions: 86
[2020-04-18 15:58:21,079 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow
[2020-04-18 15:58:21,193 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states.
[2020-04-18 15:58:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states.
[2020-04-18 15:58:21,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:21,193 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:21,193 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1]
[2020-04-18 15:58:21,194 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:21,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,194 INFO L82 PathProgramCache]: Analyzing trace with hash 779528, now seen corresponding path program 1 times
[2020-04-18 15:58:21,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:21,194 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [790160576]
[2020-04-18 15:58:21,195 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,195 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states.
[2020-04-18 15:58:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:21,196 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:21,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,196 INFO L82 PathProgramCache]: Analyzing trace with hash 779528, now seen corresponding path program 2 times
[2020-04-18 15:58:21,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:21,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166682021]
[2020-04-18 15:58:21,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:21,213 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 15:58:21,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166682021]
[2020-04-18 15:58:21,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:21,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 15:58:21,214 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:21,215 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,215 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:21,215 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:21,220 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:21,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:21,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:21,221 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states.
[2020-04-18 15:58:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,222 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions.
[2020-04-18 15:58:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions.
[2020-04-18 15:58:21,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:21,222 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [790160576]
[2020-04-18 15:58:21,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:21,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 15:58:21,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [790160576]
[2020-04-18 15:58:21,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 15:58:21,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:21,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:21,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:21,224 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states.
[2020-04-18 15:58:21,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,272 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions.
[2020-04-18 15:58:21,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 15:58:21,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2020-04-18 15:58:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:21,294 INFO L225 Difference]: With dead ends: 1889
[2020-04-18 15:58:21,294 INFO L226 Difference]: Without dead ends: 1767
[2020-04-18 15:58:21,294 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states.
[2020-04-18 15:58:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767.
[2020-04-18 15:58:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states.
[2020-04-18 15:58:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions.
[2020-04-18 15:58:21,412 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3
[2020-04-18 15:58:21,412 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:21,412 INFO L479 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions.
[2020-04-18 15:58:21,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 15:58:21,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions.
[2020-04-18 15:58:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:21,413 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:21,413 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:21,413 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash -666106918, now seen corresponding path program 1 times
[2020-04-18 15:58:21,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:21,415 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [268516016]
[2020-04-18 15:58:21,415 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,415 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 15:58:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 15:58:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:21,416 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:21,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,417 INFO L82 PathProgramCache]: Analyzing trace with hash -76325002, now seen corresponding path program 2 times
[2020-04-18 15:58:21,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:21,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919128989]
[2020-04-18 15:58:21,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:21,452 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 15:58:21,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919128989]
[2020-04-18 15:58:21,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:21,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:21,453 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:21,454 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,455 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 15:58:21,455 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:21,461 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:21,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:21,462 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states.
[2020-04-18 15:58:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,467 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:21,468 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,469 INFO L82 PathProgramCache]: Analyzing trace with hash -666106918, now seen corresponding path program 3 times
[2020-04-18 15:58:21,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:21,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425674545]
[2020-04-18 15:58:21,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:21,521 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 15:58:21,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425674545]
[2020-04-18 15:58:21,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:21,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:21,524 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:21,525 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,526 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 15:58:21,527 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:21,541 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:21,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:21,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:21,542 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states.
[2020-04-18 15:58:21,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,568 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:21,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:21,569 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [268516016]
[2020-04-18 15:58:21,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:21,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:21,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [268516016]
[2020-04-18 15:58:21,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:21,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:21,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:21,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:21,571 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states.
[2020-04-18 15:58:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,662 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions.
[2020-04-18 15:58:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:21,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-04-18 15:58:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:21,688 INFO L225 Difference]: With dead ends: 2905
[2020-04-18 15:58:21,689 INFO L226 Difference]: Without dead ends: 2899
[2020-04-18 15:58:21,691 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states.
[2020-04-18 15:58:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966.
[2020-04-18 15:58:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states.
[2020-04-18 15:58:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions.
[2020-04-18 15:58:21,809 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9
[2020-04-18 15:58:21,810 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:21,810 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions.
[2020-04-18 15:58:21,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions.
[2020-04-18 15:58:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:21,811 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:21,811 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:21,811 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:21,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1766896000, now seen corresponding path program 1 times
[2020-04-18 15:58:21,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:21,812 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1332941931]
[2020-04-18 15:58:21,812 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,813 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 15:58:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-04-18 15:58:21,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:21,814 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:21,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1637319952, now seen corresponding path program 2 times
[2020-04-18 15:58:21,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:21,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695503311]
[2020-04-18 15:58:21,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:21,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695503311]
[2020-04-18 15:58:21,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:21,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:21,840 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:21,841 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,842 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions.
[2020-04-18 15:58:21,843 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:21,848 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:21,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:21,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:21,849 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states.
[2020-04-18 15:58:21,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,852 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:21,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:21,853 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:21,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1766896000, now seen corresponding path program 3 times
[2020-04-18 15:58:21,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:21,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619739292]
[2020-04-18 15:58:21,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:21,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619739292]
[2020-04-18 15:58:21,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:21,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:21,898 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:21,899 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:21,901 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions.
[2020-04-18 15:58:21,901 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:21,912 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:21,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:21,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:21,912 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 5 states.
[2020-04-18 15:58:21,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:21,942 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:21,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:21,943 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1332941931]
[2020-04-18 15:58:21,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:21,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:21,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1332941931]
[2020-04-18 15:58:21,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:21,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:21,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:21,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:21,945 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states.
[2020-04-18 15:58:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:22,060 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions.
[2020-04-18 15:58:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:22,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-18 15:58:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:22,093 INFO L225 Difference]: With dead ends: 3204
[2020-04-18 15:58:22,093 INFO L226 Difference]: Without dead ends: 3194
[2020-04-18 15:58:22,094 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states.
[2020-04-18 15:58:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200.
[2020-04-18 15:58:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states.
[2020-04-18 15:58:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions.
[2020-04-18 15:58:22,229 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13
[2020-04-18 15:58:22,230 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:22,230 INFO L479 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions.
[2020-04-18 15:58:22,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:22,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions.
[2020-04-18 15:58:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:22,231 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:22,231 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:22,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:22,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1022394712, now seen corresponding path program 1 times
[2020-04-18 15:58:22,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:22,232 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [888385630]
[2020-04-18 15:58:22,233 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:22,234 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 99 transitions.
[2020-04-18 15:58:22,234 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states.
[2020-04-18 15:58:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:22,235 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:22,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:22,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1105423976, now seen corresponding path program 2 times
[2020-04-18 15:58:22,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:22,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690061703]
[2020-04-18 15:58:22,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:22,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690061703]
[2020-04-18 15:58:22,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:22,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:22,264 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:22,265 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:22,271 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 61 transitions.
[2020-04-18 15:58:22,321 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:22,329 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:22,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:22,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:22,330 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states.
[2020-04-18 15:58:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:22,339 INFO L93 Difference]: Finished difference Result 61 states and 107 transitions.
[2020-04-18 15:58:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions.
[2020-04-18 15:58:22,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:22,339 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:22,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:22,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1151350732, now seen corresponding path program 3 times
[2020-04-18 15:58:22,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:22,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992893220]
[2020-04-18 15:58:22,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:22,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992893220]
[2020-04-18 15:58:22,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:22,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:22,377 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:22,378 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:22,381 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 41 transitions.
[2020-04-18 15:58:22,381 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:22,392 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:22,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:22,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:22,393 INFO L87 Difference]: Start difference. First operand 61 states and 107 transitions. Second operand 5 states.
[2020-04-18 15:58:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:22,436 INFO L93 Difference]: Finished difference Result 68 states and 112 transitions.
[2020-04-18 15:58:22,436 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 112 transitions.
[2020-04-18 15:58:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:22,437 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:22,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1022394712, now seen corresponding path program 4 times
[2020-04-18 15:58:22,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:22,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461156909]
[2020-04-18 15:58:22,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:22,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:22,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461156909]
[2020-04-18 15:58:22,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675899807]
[2020-04-18 15:58:22,486 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:22,563 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:22,564 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:22,565 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:22,567 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:22,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:22,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:22,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:22,660 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:22,661 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:22,665 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions.
[2020-04-18 15:58:22,666 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:22,760 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:22,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:22,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:22,761 INFO L87 Difference]: Start difference. First operand 68 states and 112 transitions. Second operand 12 states.
[2020-04-18 15:58:22,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:22,964 INFO L93 Difference]: Finished difference Result 69 states and 112 transitions.
[2020-04-18 15:58:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 112 transitions.
[2020-04-18 15:58:22,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:22,964 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:22,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:22,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1474969304, now seen corresponding path program 5 times
[2020-04-18 15:58:22,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:22,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762985653]
[2020-04-18 15:58:22,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:23,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762985653]
[2020-04-18 15:58:23,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:23,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:23,062 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:23,063 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:23,065 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions.
[2020-04-18 15:58:23,066 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:23,092 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:23,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:23,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:58:23,093 INFO L87 Difference]: Start difference. First operand 69 states and 112 transitions. Second operand 7 states.
[2020-04-18 15:58:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:23,229 INFO L93 Difference]: Finished difference Result 72 states and 115 transitions.
[2020-04-18 15:58:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 115 transitions.
[2020-04-18 15:58:23,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:23,230 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [888385630]
[2020-04-18 15:58:23,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:23,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:23,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [888385630]
[2020-04-18 15:58:23,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:23,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:23,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:23,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:58:23,232 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 14 states.
[2020-04-18 15:58:23,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:23,705 INFO L93 Difference]: Finished difference Result 5101 states and 16214 transitions.
[2020-04-18 15:58:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:23,706 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15
[2020-04-18 15:58:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:23,753 INFO L225 Difference]: With dead ends: 5101
[2020-04-18 15:58:23,753 INFO L226 Difference]: Without dead ends: 5080
[2020-04-18 15:58:23,754 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:58:23,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5080 states.
[2020-04-18 15:58:23,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5080 to 2035.
[2020-04-18 15:58:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states.
[2020-04-18 15:58:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions.
[2020-04-18 15:58:23,907 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15
[2020-04-18 15:58:23,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:23,909 INFO L479 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions.
[2020-04-18 15:58:23,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions.
[2020-04-18 15:58:23,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:23,910 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:23,911 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:24,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:24,115 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:24,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1278978660, now seen corresponding path program 1 times
[2020-04-18 15:58:24,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:24,116 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1743980450]
[2020-04-18 15:58:24,116 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,118 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 45 transitions.
[2020-04-18 15:58:24,118 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2020-04-18 15:58:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:24,119 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1104086900, now seen corresponding path program 2 times
[2020-04-18 15:58:24,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:24,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499532376]
[2020-04-18 15:58:24,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:24,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499532376]
[2020-04-18 15:58:24,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:24,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:24,139 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:24,140 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,143 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 43 transitions.
[2020-04-18 15:58:24,143 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:24,148 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:24,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:24,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:24,149 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states.
[2020-04-18 15:58:24,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:24,153 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 15:58:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 15:58:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:24,153 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:24,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1278978660, now seen corresponding path program 3 times
[2020-04-18 15:58:24,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:24,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199503703]
[2020-04-18 15:58:24,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:24,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199503703]
[2020-04-18 15:58:24,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:24,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:24,237 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:24,239 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,241 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions.
[2020-04-18 15:58:24,241 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:24,252 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:24,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:24,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:24,253 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states.
[2020-04-18 15:58:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:24,285 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 15:58:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 15:58:24,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:24,285 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1743980450]
[2020-04-18 15:58:24,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:24,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:24,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1743980450]
[2020-04-18 15:58:24,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:24,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:24,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:24,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:24,287 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states.
[2020-04-18 15:58:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:24,386 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions.
[2020-04-18 15:58:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:24,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17
[2020-04-18 15:58:24,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:24,401 INFO L225 Difference]: With dead ends: 3265
[2020-04-18 15:58:24,401 INFO L226 Difference]: Without dead ends: 3250
[2020-04-18 15:58:24,403 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:24,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states.
[2020-04-18 15:58:24,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281.
[2020-04-18 15:58:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states.
[2020-04-18 15:58:24,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions.
[2020-04-18 15:58:24,508 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17
[2020-04-18 15:58:24,508 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:24,508 INFO L479 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions.
[2020-04-18 15:58:24,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:24,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions.
[2020-04-18 15:58:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:24,510 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:24,510 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:24,511 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1455436228, now seen corresponding path program 1 times
[2020-04-18 15:58:24,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:24,511 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1429334114]
[2020-04-18 15:58:24,512 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,513 INFO L259 McrAutomatonBuilder]: Finished intersection with 76 states and 151 transitions.
[2020-04-18 15:58:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states.
[2020-04-18 15:58:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:24,514 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,515 INFO L82 PathProgramCache]: Analyzing trace with hash -589921076, now seen corresponding path program 2 times
[2020-04-18 15:58:24,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:24,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406048661]
[2020-04-18 15:58:24,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:24,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:24,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406048661]
[2020-04-18 15:58:24,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:24,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:24,542 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:24,543 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,549 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 101 transitions.
[2020-04-18 15:58:24,549 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:24,556 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:24,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:24,557 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states.
[2020-04-18 15:58:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:24,567 INFO L93 Difference]: Finished difference Result 89 states and 163 transitions.
[2020-04-18 15:58:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 163 transitions.
[2020-04-18 15:58:24,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:24,567 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:24,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,568 INFO L82 PathProgramCache]: Analyzing trace with hash 931658800, now seen corresponding path program 3 times
[2020-04-18 15:58:24,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:24,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166147899]
[2020-04-18 15:58:24,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:58:24,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166147899]
[2020-04-18 15:58:24,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:24,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:24,617 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:24,619 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,623 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 69 transitions.
[2020-04-18 15:58:24,624 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:24,636 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:24,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:24,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:24,636 INFO L87 Difference]: Start difference. First operand 89 states and 163 transitions. Second operand 5 states.
[2020-04-18 15:58:24,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:24,680 INFO L93 Difference]: Finished difference Result 96 states and 168 transitions.
[2020-04-18 15:58:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 168 transitions.
[2020-04-18 15:58:24,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:24,681 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:24,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:24,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1455436228, now seen corresponding path program 4 times
[2020-04-18 15:58:24,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:24,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000632574]
[2020-04-18 15:58:24,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:58:24,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000632574]
[2020-04-18 15:58:24,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568361314]
[2020-04-18 15:58:24,735 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:24,807 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:24,808 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:24,809 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:24,810 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:58:24,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:24,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:24,874 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:24,876 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:24,881 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions.
[2020-04-18 15:58:24,881 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:24,942 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:24,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:24,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:24,944 INFO L87 Difference]: Start difference. First operand 96 states and 168 transitions. Second operand 12 states.
[2020-04-18 15:58:25,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:25,113 INFO L93 Difference]: Finished difference Result 97 states and 168 transitions.
[2020-04-18 15:58:25,113 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 168 transitions.
[2020-04-18 15:58:25,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:25,113 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:25,113 INFO L82 PathProgramCache]: Analyzing trace with hash -737840828, now seen corresponding path program 5 times
[2020-04-18 15:58:25,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:25,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134873641]
[2020-04-18 15:58:25,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:25,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134873641]
[2020-04-18 15:58:25,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:25,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:25,174 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:25,175 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:25,179 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions.
[2020-04-18 15:58:25,179 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:25,201 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:25,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:25,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:58:25,202 INFO L87 Difference]: Start difference. First operand 97 states and 168 transitions. Second operand 7 states.
[2020-04-18 15:58:25,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:25,325 INFO L93 Difference]: Finished difference Result 100 states and 171 transitions.
[2020-04-18 15:58:25,326 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 171 transitions.
[2020-04-18 15:58:25,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:25,326 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1429334114]
[2020-04-18 15:58:25,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:25,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:25,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1429334114]
[2020-04-18 15:58:25,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:25,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:25,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:25,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:58:25,328 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 14 states.
[2020-04-18 15:58:25,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:25,699 INFO L93 Difference]: Finished difference Result 5387 states and 17317 transitions.
[2020-04-18 15:58:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:25,701 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19
[2020-04-18 15:58:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:25,723 INFO L225 Difference]: With dead ends: 5387
[2020-04-18 15:58:25,723 INFO L226 Difference]: Without dead ends: 5358
[2020-04-18 15:58:25,724 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:58:25,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states.
[2020-04-18 15:58:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 2153.
[2020-04-18 15:58:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states.
[2020-04-18 15:58:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 8255 transitions.
[2020-04-18 15:58:25,913 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 8255 transitions. Word has length 19
[2020-04-18 15:58:25,913 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:25,913 INFO L479 AbstractCegarLoop]: Abstraction has 2153 states and 8255 transitions.
[2020-04-18 15:58:25,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 8255 transitions.
[2020-04-18 15:58:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:25,915 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:25,915 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:26,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:26,124 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:26,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:26,124 INFO L82 PathProgramCache]: Analyzing trace with hash -979473248, now seen corresponding path program 1 times
[2020-04-18 15:58:26,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:26,125 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [785260664]
[2020-04-18 15:58:26,125 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:26,126 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 111 transitions.
[2020-04-18 15:58:26,127 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states.
[2020-04-18 15:58:26,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:26,127 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:26,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1776845200, now seen corresponding path program 2 times
[2020-04-18 15:58:26,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:26,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852481656]
[2020-04-18 15:58:26,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:26,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852481656]
[2020-04-18 15:58:26,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:26,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:26,148 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:26,150 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:26,155 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 73 transitions.
[2020-04-18 15:58:26,155 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:26,165 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:26,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:26,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:26,166 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 3 states.
[2020-04-18 15:58:26,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:26,175 INFO L93 Difference]: Finished difference Result 69 states and 119 transitions.
[2020-04-18 15:58:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 119 transitions.
[2020-04-18 15:58:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:26,175 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:26,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:26,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1194226656, now seen corresponding path program 3 times
[2020-04-18 15:58:26,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:26,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795663647]
[2020-04-18 15:58:26,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:26,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795663647]
[2020-04-18 15:58:26,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:26,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:26,227 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:26,228 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:26,232 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 45 transitions.
[2020-04-18 15:58:26,232 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:26,243 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:26,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:26,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:26,244 INFO L87 Difference]: Start difference. First operand 69 states and 119 transitions. Second operand 5 states.
[2020-04-18 15:58:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:26,286 INFO L93 Difference]: Finished difference Result 76 states and 124 transitions.
[2020-04-18 15:58:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 124 transitions.
[2020-04-18 15:58:26,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:26,287 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:26,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:26,287 INFO L82 PathProgramCache]: Analyzing trace with hash -979473248, now seen corresponding path program 4 times
[2020-04-18 15:58:26,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:26,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720259055]
[2020-04-18 15:58:26,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:26,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720259055]
[2020-04-18 15:58:26,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541779687]
[2020-04-18 15:58:26,346 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:26,418 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:26,418 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:26,419 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:26,420 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:26,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:26,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:26,487 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:26,489 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:26,493 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions.
[2020-04-18 15:58:26,493 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:26,572 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:26,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:26,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:26,573 INFO L87 Difference]: Start difference. First operand 76 states and 124 transitions. Second operand 12 states.
[2020-04-18 15:58:26,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:26,736 INFO L93 Difference]: Finished difference Result 77 states and 124 transitions.
[2020-04-18 15:58:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions.
[2020-04-18 15:58:26,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:26,737 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:26,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:26,738 INFO L82 PathProgramCache]: Analyzing trace with hash -737855584, now seen corresponding path program 5 times
[2020-04-18 15:58:26,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:26,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914151924]
[2020-04-18 15:58:26,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:26,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914151924]
[2020-04-18 15:58:26,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:26,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:26,795 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:26,797 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:26,800 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions.
[2020-04-18 15:58:26,800 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:26,826 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:26,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:26,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:58:26,827 INFO L87 Difference]: Start difference. First operand 77 states and 124 transitions. Second operand 7 states.
[2020-04-18 15:58:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:26,960 INFO L93 Difference]: Finished difference Result 80 states and 127 transitions.
[2020-04-18 15:58:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 127 transitions.
[2020-04-18 15:58:26,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:26,961 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [785260664]
[2020-04-18 15:58:26,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:26,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:26,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [785260664]
[2020-04-18 15:58:26,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:26,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:26,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:26,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:58:26,963 INFO L87 Difference]: Start difference. First operand 2153 states and 8255 transitions. Second operand 14 states.
[2020-04-18 15:58:27,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:27,369 INFO L93 Difference]: Finished difference Result 5272 states and 17008 transitions.
[2020-04-18 15:58:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:27,370 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19
[2020-04-18 15:58:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:27,389 INFO L225 Difference]: With dead ends: 5272
[2020-04-18 15:58:27,389 INFO L226 Difference]: Without dead ends: 5238
[2020-04-18 15:58:27,390 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:58:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states.
[2020-04-18 15:58:27,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 2150.
[2020-04-18 15:58:27,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states.
[2020-04-18 15:58:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions.
[2020-04-18 15:58:27,504 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19
[2020-04-18 15:58:27,504 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:27,504 INFO L479 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions.
[2020-04-18 15:58:27,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions.
[2020-04-18 15:58:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:27,506 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:27,506 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:27,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:27,711 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:27,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:27,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1726751032, now seen corresponding path program 1 times
[2020-04-18 15:58:27,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:27,712 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2069967680]
[2020-04-18 15:58:27,714 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:27,716 INFO L259 McrAutomatonBuilder]: Finished intersection with 160 states and 405 transitions.
[2020-04-18 15:58:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states.
[2020-04-18 15:58:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:27,718 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:27,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:27,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1925904952, now seen corresponding path program 2 times
[2020-04-18 15:58:27,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:27,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263559589]
[2020-04-18 15:58:27,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:27,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263559589]
[2020-04-18 15:58:27,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:27,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:27,736 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:27,738 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:27,746 INFO L259 McrAutomatonBuilder]: Finished intersection with 67 states and 119 transitions.
[2020-04-18 15:58:27,746 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:27,752 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:27,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:27,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:27,753 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states.
[2020-04-18 15:58:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:27,765 INFO L93 Difference]: Finished difference Result 203 states and 475 transitions.
[2020-04-18 15:58:27,765 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 475 transitions.
[2020-04-18 15:58:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:27,766 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:27,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:27,766 INFO L82 PathProgramCache]: Analyzing trace with hash 23475244, now seen corresponding path program 3 times
[2020-04-18 15:58:27,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:27,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311017202]
[2020-04-18 15:58:27,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:58:27,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311017202]
[2020-04-18 15:58:27,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:27,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:27,799 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:27,801 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:27,865 INFO L259 McrAutomatonBuilder]: Finished intersection with 59 states and 99 transitions.
[2020-04-18 15:58:27,865 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:27,885 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:27,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:27,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:27,886 INFO L87 Difference]: Start difference. First operand 203 states and 475 transitions. Second operand 5 states.
[2020-04-18 15:58:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:27,953 INFO L93 Difference]: Finished difference Result 266 states and 576 transitions.
[2020-04-18 15:58:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 576 transitions.
[2020-04-18 15:58:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:27,955 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:27,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:27,955 INFO L82 PathProgramCache]: Analyzing trace with hash 446948872, now seen corresponding path program 4 times
[2020-04-18 15:58:27,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:27,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684667275]
[2020-04-18 15:58:27,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:28,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684667275]
[2020-04-18 15:58:28,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438136208]
[2020-04-18 15:58:28,007 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:28,088 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:28,089 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:28,090 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:28,091 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:28,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:28,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:58:28,157 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:28,159 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:28,166 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 79 transitions.
[2020-04-18 15:58:28,166 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:28,237 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:28,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:28,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:28,238 INFO L87 Difference]: Start difference. First operand 266 states and 576 transitions. Second operand 12 states.
[2020-04-18 15:58:28,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:28,579 INFO L93 Difference]: Finished difference Result 312 states and 632 transitions.
[2020-04-18 15:58:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 632 transitions.
[2020-04-18 15:58:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:28,581 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:28,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:28,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1726751032, now seen corresponding path program 5 times
[2020-04-18 15:58:28,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:28,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000203195]
[2020-04-18 15:58:28,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:28,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000203195]
[2020-04-18 15:58:28,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497632303]
[2020-04-18 15:58:28,660 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:28,735 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2020-04-18 15:58:28,735 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:28,736 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:28,740 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:28,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:28,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:28,850 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:28,852 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:28,860 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions.
[2020-04-18 15:58:28,860 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:28,916 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:28,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:28,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600
[2020-04-18 15:58:28,917 INFO L87 Difference]: Start difference. First operand 312 states and 632 transitions. Second operand 16 states.
[2020-04-18 15:58:29,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:29,666 INFO L93 Difference]: Finished difference Result 329 states and 643 transitions.
[2020-04-18 15:58:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 643 transitions.
[2020-04-18 15:58:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:29,668 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 15:58:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:29,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1485133368, now seen corresponding path program 6 times
[2020-04-18 15:58:29,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:29,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024398702]
[2020-04-18 15:58:29,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:58:29,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024398702]
[2020-04-18 15:58:29,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133800820]
[2020-04-18 15:58:29,738 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:29,814 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2020-04-18 15:58:29,815 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:29,815 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:29,817 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:58:29,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:29,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:29,943 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:29,945 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:29,952 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions.
[2020-04-18 15:58:29,952 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:30,083 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:30,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:30,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=1365, Unknown=0, NotChecked=0, Total=1806
[2020-04-18 15:58:30,084 INFO L87 Difference]: Start difference. First operand 329 states and 643 transitions. Second operand 16 states.
[2020-04-18 15:58:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:30,914 INFO L93 Difference]: Finished difference Result 358 states and 677 transitions.
[2020-04-18 15:58:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 677 transitions.
[2020-04-18 15:58:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:30,915 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 15:58:30,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:30,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1905150088, now seen corresponding path program 7 times
[2020-04-18 15:58:30,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:30,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119944814]
[2020-04-18 15:58:30,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:30,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119944814]
[2020-04-18 15:58:30,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:30,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 15:58:30,978 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:30,980 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:30,986 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 63 transitions.
[2020-04-18 15:58:30,987 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:31,026 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:31,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:31,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3161, Unknown=0, NotChecked=0, Total=4032
[2020-04-18 15:58:31,028 INFO L87 Difference]: Start difference. First operand 358 states and 677 transitions. Second operand 7 states.
[2020-04-18 15:58:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:31,278 INFO L93 Difference]: Finished difference Result 403 states and 735 transitions.
[2020-04-18 15:58:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 735 transitions.
[2020-04-18 15:58:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:31,279 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 15:58:31,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:31,279 INFO L82 PathProgramCache]: Analyzing trace with hash -268549816, now seen corresponding path program 8 times
[2020-04-18 15:58:31,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:31,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966800402]
[2020-04-18 15:58:31,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:31,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966800402]
[2020-04-18 15:58:31,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678674086]
[2020-04-18 15:58:31,353 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:31,432 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 15:58:31,433 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:31,433 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:31,435 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:31,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:31,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:31,524 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:31,525 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:31,530 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions.
[2020-04-18 15:58:31,531 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:31,566 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:31,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:31,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1050, Invalid=4352, Unknown=0, NotChecked=0, Total=5402
[2020-04-18 15:58:31,569 INFO L87 Difference]: Start difference. First operand 403 states and 735 transitions. Second operand 16 states.
[2020-04-18 15:58:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:32,391 INFO L93 Difference]: Finished difference Result 406 states and 736 transitions.
[2020-04-18 15:58:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 736 transitions.
[2020-04-18 15:58:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:32,392 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 15:58:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:32,393 INFO L82 PathProgramCache]: Analyzing trace with hash -675948728, now seen corresponding path program 9 times
[2020-04-18 15:58:32,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:32,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493889279]
[2020-04-18 15:58:32,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:32,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493889279]
[2020-04-18 15:58:32,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005675082]
[2020-04-18 15:58:32,512 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:32,590 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 15:58:32,590 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:32,591 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:32,592 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:32,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:32,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:32,697 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:32,700 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:32,707 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions.
[2020-04-18 15:58:32,708 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:32,757 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:32,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:32,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1633, Invalid=7109, Unknown=0, NotChecked=0, Total=8742
[2020-04-18 15:58:32,760 INFO L87 Difference]: Start difference. First operand 406 states and 736 transitions. Second operand 16 states.
[2020-04-18 15:58:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:33,582 INFO L93 Difference]: Finished difference Result 441 states and 773 transitions.
[2020-04-18 15:58:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 773 transitions.
[2020-04-18 15:58:33,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:33,584 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 15:58:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:33,584 INFO L82 PathProgramCache]: Analyzing trace with hash -395441848, now seen corresponding path program 10 times
[2020-04-18 15:58:33,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:33,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696250920]
[2020-04-18 15:58:33,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:33,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696250920]
[2020-04-18 15:58:33,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:33,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:58:33,658 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:33,661 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:33,664 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 15:58:33,665 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:33,691 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:33,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:58:33,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2167, Invalid=10265, Unknown=0, NotChecked=0, Total=12432
[2020-04-18 15:58:33,695 INFO L87 Difference]: Start difference. First operand 441 states and 773 transitions. Second operand 9 states.
[2020-04-18 15:58:34,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:34,333 INFO L93 Difference]: Finished difference Result 441 states and 773 transitions.
[2020-04-18 15:58:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 773 transitions.
[2020-04-18 15:58:34,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:34,334 INFO L105 Mcr]: ---- MCR iteration 9 ----
[2020-04-18 15:58:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:34,334 INFO L82 PathProgramCache]: Analyzing trace with hash -409607608, now seen corresponding path program 11 times
[2020-04-18 15:58:34,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:34,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4619285]
[2020-04-18 15:58:34,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:34,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4619285]
[2020-04-18 15:58:34,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:34,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:58:34,419 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:34,421 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:34,424 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 15:58:34,425 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:34,425 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:34,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:58:34,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2621, Invalid=14409, Unknown=0, NotChecked=0, Total=17030
[2020-04-18 15:58:34,432 INFO L87 Difference]: Start difference. First operand 441 states and 773 transitions. Second operand 9 states.
[2020-04-18 15:58:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:35,138 INFO L93 Difference]: Finished difference Result 441 states and 773 transitions.
[2020-04-18 15:58:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 773 transitions.
[2020-04-18 15:58:35,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:35,140 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2069967680]
[2020-04-18 15:58:35,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:35,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 15:58:35,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2069967680]
[2020-04-18 15:58:35,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-04-18 15:58:35,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:35,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-04-18 15:58:35,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3180, Invalid=19170, Unknown=0, NotChecked=0, Total=22350
[2020-04-18 15:58:35,143 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 27 states.
[2020-04-18 15:58:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:37,415 INFO L93 Difference]: Finished difference Result 8475 states and 24418 transitions.
[2020-04-18 15:58:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states.
[2020-04-18 15:58:37,415 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 21
[2020-04-18 15:58:37,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:37,458 INFO L225 Difference]: With dead ends: 8475
[2020-04-18 15:58:37,458 INFO L226 Difference]: Without dead ends: 8417
[2020-04-18 15:58:37,462 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16600 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5804, Invalid=33996, Unknown=0, NotChecked=0, Total=39800
[2020-04-18 15:58:37,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8417 states.
[2020-04-18 15:58:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8417 to 1800.
[2020-04-18 15:58:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1800 states.
[2020-04-18 15:58:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 6961 transitions.
[2020-04-18 15:58:37,665 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 6961 transitions. Word has length 21
[2020-04-18 15:58:37,665 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:37,665 INFO L479 AbstractCegarLoop]: Abstraction has 1800 states and 6961 transitions.
[2020-04-18 15:58:37,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states.
[2020-04-18 15:58:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 6961 transitions.
[2020-04-18 15:58:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:37,667 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:37,667 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:38,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:38,671 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:38,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:38,672 INFO L82 PathProgramCache]: Analyzing trace with hash -334654421, now seen corresponding path program 1 times
[2020-04-18 15:58:38,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:38,672 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [576850464]
[2020-04-18 15:58:38,674 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:38,675 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 57 transitions.
[2020-04-18 15:58:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-04-18 15:58:38,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:38,676 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:38,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1028495365, now seen corresponding path program 2 times
[2020-04-18 15:58:38,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:38,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363932468]
[2020-04-18 15:58:38,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:58:38,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363932468]
[2020-04-18 15:58:38,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:38,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:38,697 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:38,698 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:38,702 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 55 transitions.
[2020-04-18 15:58:38,702 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:38,708 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:38,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:38,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:38,708 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states.
[2020-04-18 15:58:38,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:38,712 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2020-04-18 15:58:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions.
[2020-04-18 15:58:38,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:38,713 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:38,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:38,713 INFO L82 PathProgramCache]: Analyzing trace with hash -334654421, now seen corresponding path program 3 times
[2020-04-18 15:58:38,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:38,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382532338]
[2020-04-18 15:58:38,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:58:38,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382532338]
[2020-04-18 15:58:38,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:38,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:38,749 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:38,751 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:38,754 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 15:58:38,754 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:38,763 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:38,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:38,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:38,764 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand 5 states.
[2020-04-18 15:58:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:38,782 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2020-04-18 15:58:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions.
[2020-04-18 15:58:38,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:38,783 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [576850464]
[2020-04-18 15:58:38,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:38,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:38,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [576850464]
[2020-04-18 15:58:38,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:38,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:38,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:38,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:38,784 INFO L87 Difference]: Start difference. First operand 1800 states and 6961 transitions. Second operand 5 states.
[2020-04-18 15:58:38,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:38,877 INFO L93 Difference]: Finished difference Result 2762 states and 9976 transitions.
[2020-04-18 15:58:38,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:38,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21
[2020-04-18 15:58:38,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:38,888 INFO L225 Difference]: With dead ends: 2762
[2020-04-18 15:58:38,888 INFO L226 Difference]: Without dead ends: 2746
[2020-04-18 15:58:38,889 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states.
[2020-04-18 15:58:38,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1965.
[2020-04-18 15:58:38,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states.
[2020-04-18 15:58:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions.
[2020-04-18 15:58:38,961 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21
[2020-04-18 15:58:38,961 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:38,961 INFO L479 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions.
[2020-04-18 15:58:38,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:38,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions.
[2020-04-18 15:58:38,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-04-18 15:58:38,963 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:38,963 INFO L425 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:38,964 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]===
[2020-04-18 15:58:38,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:38,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1788555247, now seen corresponding path program 1 times
[2020-04-18 15:58:38,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:38,964 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1940457345]
[2020-04-18 15:58:38,965 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:38,966 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions.
[2020-04-18 15:58:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states.
[2020-04-18 15:58:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-04-18 15:58:38,966 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1788555247, now seen corresponding path program 2 times
[2020-04-18 15:58:38,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:38,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017723591]
[2020-04-18 15:58:38,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:58:38,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-04-18 15:58:38,989 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace
[2020-04-18 15:58:38,989 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-04-18 15:58:38,989 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-04-18 15:58:38,990 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-04-18 15:58:38,990 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2020-04-18 15:58:39,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,006 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,006 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,006 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,006 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,007 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,007 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,007 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,007 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,008 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,010 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,010 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,012 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,018 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,018 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,020 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,020 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,020 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,021 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,021 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,021 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,023 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,023 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,023 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,023 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,023 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,024 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,025 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,025 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,025 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,025 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,026 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,027 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,028 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,028 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,028 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,028 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,028 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,029 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,030 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,030 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,031 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,034 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,036 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:58:39,040 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2020-04-18 15:58:39,041 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 15:58:39,041 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 15:58:39,041 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 15:58:39,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 15:58:39,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 15:58:39,041 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 15:58:39,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 15:58:39,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 15:58:39,043 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 122 transitions, 334 flow
[2020-04-18 15:58:39,043 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 137 places, 122 transitions, 334 flow
[2020-04-18 15:58:39,066 INFO L129 PetriNetUnfolder]: 8/152 cut-off events.
[2020-04-18 15:58:39,066 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES.
[2020-04-18 15:58:39,067 INFO L80 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 152 events. 8/152 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 251 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 179. Up to 12 conditions per place.
[2020-04-18 15:58:39,072 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 137 places, 122 transitions, 334 flow
[2020-04-18 15:58:39,096 INFO L129 PetriNetUnfolder]: 8/152 cut-off events.
[2020-04-18 15:58:39,097 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES.
[2020-04-18 15:58:39,098 INFO L80 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 152 events. 8/152 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 251 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 179. Up to 12 conditions per place.
[2020-04-18 15:58:39,102 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2264
[2020-04-18 15:58:39,102 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 15:58:40,922 WARN L192 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75
[2020-04-18 15:58:41,268 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62
[2020-04-18 15:58:41,515 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75
[2020-04-18 15:58:41,607 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2999
[2020-04-18 15:58:41,607 INFO L214 etLargeBlockEncoding]: Total number of compositions: 104
[2020-04-18 15:58:41,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow
[2020-04-18 15:58:41,996 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states.
[2020-04-18 15:58:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states.
[2020-04-18 15:58:41,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:41,996 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:41,996 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1]
[2020-04-18 15:58:41,997 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:41,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1026170, now seen corresponding path program 1 times
[2020-04-18 15:58:41,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:41,997 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1418166529]
[2020-04-18 15:58:41,997 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:41,998 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:41,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states.
[2020-04-18 15:58:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:58:41,998 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:41,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:41,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1026170, now seen corresponding path program 2 times
[2020-04-18 15:58:41,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:41,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075811096]
[2020-04-18 15:58:41,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:42,032 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 15:58:42,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075811096]
[2020-04-18 15:58:42,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:42,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 15:58:42,033 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:42,033 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:42,033 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:58:42,034 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:42,043 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:42,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:42,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:42,044 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states.
[2020-04-18 15:58:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:42,045 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions.
[2020-04-18 15:58:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions.
[2020-04-18 15:58:42,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:42,045 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1418166529]
[2020-04-18 15:58:42,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:42,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 15:58:42,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1418166529]
[2020-04-18 15:58:42,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 15:58:42,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:42,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:42,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:42,047 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states.
[2020-04-18 15:58:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:42,135 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions.
[2020-04-18 15:58:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 15:58:42,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2020-04-18 15:58:42,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:42,163 INFO L225 Difference]: With dead ends: 5844
[2020-04-18 15:58:42,163 INFO L226 Difference]: Without dead ends: 5479
[2020-04-18 15:58:42,163 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states.
[2020-04-18 15:58:42,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479.
[2020-04-18 15:58:42,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states.
[2020-04-18 15:58:42,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions.
[2020-04-18 15:58:42,433 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3
[2020-04-18 15:58:42,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:42,433 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions.
[2020-04-18 15:58:42,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 15:58:42,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions.
[2020-04-18 15:58:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:42,434 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:42,434 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:42,434 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:42,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:42,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1344335463, now seen corresponding path program 1 times
[2020-04-18 15:58:42,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:42,435 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [69685832]
[2020-04-18 15:58:42,435 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:42,436 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 15:58:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 15:58:42,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:42,436 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:42,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:42,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1344291753, now seen corresponding path program 2 times
[2020-04-18 15:58:42,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:42,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596099425]
[2020-04-18 15:58:42,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:42,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:42,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596099425]
[2020-04-18 15:58:42,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:42,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:42,462 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:42,462 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:42,463 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-04-18 15:58:42,463 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:42,483 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:42,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:42,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:42,484 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states.
[2020-04-18 15:58:42,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:42,501 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:42,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:58:42,502 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:42,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:42,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1344335463, now seen corresponding path program 3 times
[2020-04-18 15:58:42,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:42,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936147829]
[2020-04-18 15:58:42,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:42,536 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 15:58:42,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936147829]
[2020-04-18 15:58:42,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:42,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:42,537 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:42,538 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:42,538 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 15:58:42,539 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:42,557 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:42,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:42,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:42,558 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states.
[2020-04-18 15:58:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:42,584 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions.
[2020-04-18 15:58:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2020-04-18 15:58:42,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:42,584 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [69685832]
[2020-04-18 15:58:42,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:42,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:42,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [69685832]
[2020-04-18 15:58:42,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 15:58:42,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-04-18 15:58:42,586 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 7 states.
[2020-04-18 15:58:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:42,834 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions.
[2020-04-18 15:58:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-04-18 15:58:42,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9
[2020-04-18 15:58:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:42,867 INFO L225 Difference]: With dead ends: 9673
[2020-04-18 15:58:42,867 INFO L226 Difference]: Without dead ends: 9666
[2020-04-18 15:58:42,869 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-04-18 15:58:43,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states.
[2020-04-18 15:58:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331.
[2020-04-18 15:58:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states.
[2020-04-18 15:58:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions.
[2020-04-18 15:58:43,328 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9
[2020-04-18 15:58:43,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:43,328 INFO L479 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions.
[2020-04-18 15:58:43,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 15:58:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions.
[2020-04-18 15:58:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:43,328 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:43,328 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:43,329 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:43,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1513378118, now seen corresponding path program 1 times
[2020-04-18 15:58:43,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:43,329 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [661802489]
[2020-04-18 15:58:43,330 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:43,330 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 15:58:43,330 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-04-18 15:58:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:43,331 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:43,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1595008928, now seen corresponding path program 2 times
[2020-04-18 15:58:43,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:43,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109173831]
[2020-04-18 15:58:43,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:43,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109173831]
[2020-04-18 15:58:43,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:43,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:43,350 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:43,351 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:43,352 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions.
[2020-04-18 15:58:43,352 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:43,361 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:43,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:43,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:43,362 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states.
[2020-04-18 15:58:43,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:43,366 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:58:43,367 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:43,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:43,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1513378118, now seen corresponding path program 3 times
[2020-04-18 15:58:43,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:43,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747916635]
[2020-04-18 15:58:43,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:43,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747916635]
[2020-04-18 15:58:43,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:43,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:43,398 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:43,399 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:43,400 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions.
[2020-04-18 15:58:43,401 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:43,412 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:43,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:43,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:43,413 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 5 states.
[2020-04-18 15:58:43,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:43,447 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions.
[2020-04-18 15:58:43,447 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions.
[2020-04-18 15:58:43,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:43,448 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [661802489]
[2020-04-18 15:58:43,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:43,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:43,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [661802489]
[2020-04-18 15:58:43,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:43,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:43,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:43,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:43,449 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states.
[2020-04-18 15:58:43,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:43,662 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions.
[2020-04-18 15:58:43,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:43,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-18 15:58:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:43,709 INFO L225 Difference]: With dead ends: 11081
[2020-04-18 15:58:43,709 INFO L226 Difference]: Without dead ends: 11068
[2020-04-18 15:58:43,710 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states.
[2020-04-18 15:58:44,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391.
[2020-04-18 15:58:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states.
[2020-04-18 15:58:44,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions.
[2020-04-18 15:58:44,106 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13
[2020-04-18 15:58:44,106 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:44,106 INFO L479 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions.
[2020-04-18 15:58:44,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions.
[2020-04-18 15:58:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:44,109 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:44,109 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:44,110 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:44,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:44,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1678648171, now seen corresponding path program 1 times
[2020-04-18 15:58:44,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:44,110 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1828793683]
[2020-04-18 15:58:44,111 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:44,112 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 99 transitions.
[2020-04-18 15:58:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states.
[2020-04-18 15:58:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:44,113 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:44,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:44,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1052639153, now seen corresponding path program 2 times
[2020-04-18 15:58:44,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:44,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405589419]
[2020-04-18 15:58:44,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:44,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405589419]
[2020-04-18 15:58:44,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:44,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:44,141 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:44,143 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:44,147 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 61 transitions.
[2020-04-18 15:58:44,147 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:44,156 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:44,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:44,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:44,158 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states.
[2020-04-18 15:58:44,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:44,168 INFO L93 Difference]: Finished difference Result 61 states and 107 transitions.
[2020-04-18 15:58:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions.
[2020-04-18 15:58:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:44,169 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:44,169 INFO L82 PathProgramCache]: Analyzing trace with hash -492067921, now seen corresponding path program 3 times
[2020-04-18 15:58:44,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:44,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173368450]
[2020-04-18 15:58:44,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:44,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173368450]
[2020-04-18 15:58:44,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:44,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:44,216 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:44,218 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:44,222 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 41 transitions.
[2020-04-18 15:58:44,222 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:44,237 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:58:44,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:44,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:44,238 INFO L87 Difference]: Start difference. First operand 61 states and 107 transitions. Second operand 5 states.
[2020-04-18 15:58:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:44,291 INFO L93 Difference]: Finished difference Result 68 states and 112 transitions.
[2020-04-18 15:58:44,292 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 112 transitions.
[2020-04-18 15:58:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:44,292 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:44,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:44,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1678648171, now seen corresponding path program 4 times
[2020-04-18 15:58:44,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:44,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927797700]
[2020-04-18 15:58:44,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:44,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:44,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927797700]
[2020-04-18 15:58:44,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072836013]
[2020-04-18 15:58:44,339 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:44,418 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:44,418 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:44,419 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:44,420 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:44,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:44,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:44,486 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:44,487 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:44,490 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions.
[2020-04-18 15:58:44,490 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:44,559 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:44,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:44,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:44,560 INFO L87 Difference]: Start difference. First operand 68 states and 112 transitions. Second operand 12 states.
[2020-04-18 15:58:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:44,729 INFO L93 Difference]: Finished difference Result 69 states and 112 transitions.
[2020-04-18 15:58:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 112 transitions.
[2020-04-18 15:58:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:58:44,729 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:44,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:44,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1637555113, now seen corresponding path program 5 times
[2020-04-18 15:58:44,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:44,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606683609]
[2020-04-18 15:58:44,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:44,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606683609]
[2020-04-18 15:58:44,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:44,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:44,776 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:44,778 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:44,781 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions.
[2020-04-18 15:58:44,781 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:44,802 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:44,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:44,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:58:44,803 INFO L87 Difference]: Start difference. First operand 69 states and 112 transitions. Second operand 7 states.
[2020-04-18 15:58:44,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:44,948 INFO L93 Difference]: Finished difference Result 72 states and 115 transitions.
[2020-04-18 15:58:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 115 transitions.
[2020-04-18 15:58:44,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:44,948 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1828793683]
[2020-04-18 15:58:44,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:44,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:44,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1828793683]
[2020-04-18 15:58:44,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:44,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:44,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:44,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:58:44,950 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 14 states.
[2020-04-18 15:58:45,127 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10
[2020-04-18 15:58:45,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:45,528 INFO L93 Difference]: Finished difference Result 19072 states and 73298 transitions.
[2020-04-18 15:58:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:45,529 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15
[2020-04-18 15:58:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:45,578 INFO L225 Difference]: With dead ends: 19072
[2020-04-18 15:58:45,578 INFO L226 Difference]: Without dead ends: 19045
[2020-04-18 15:58:45,578 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:58:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19045 states.
[2020-04-18 15:58:45,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19045 to 7048.
[2020-04-18 15:58:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states.
[2020-04-18 15:58:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions.
[2020-04-18 15:58:46,031 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15
[2020-04-18 15:58:46,031 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:46,031 INFO L479 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions.
[2020-04-18 15:58:46,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:46,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions.
[2020-04-18 15:58:46,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:46,032 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:46,033 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:46,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:46,237 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:46,237 INFO L82 PathProgramCache]: Analyzing trace with hash -288445665, now seen corresponding path program 1 times
[2020-04-18 15:58:46,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:46,238 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1865752574]
[2020-04-18 15:58:46,239 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:46,240 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 45 transitions.
[2020-04-18 15:58:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2020-04-18 15:58:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:46,241 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:46,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:46,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1398296473, now seen corresponding path program 2 times
[2020-04-18 15:58:46,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:46,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154167423]
[2020-04-18 15:58:46,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:46,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154167423]
[2020-04-18 15:58:46,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:46,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:46,259 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:46,260 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:46,263 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 43 transitions.
[2020-04-18 15:58:46,263 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:46,274 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:58:46,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:46,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:46,275 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states.
[2020-04-18 15:58:46,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:46,278 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 15:58:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 15:58:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 15:58:46,278 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:46,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:46,279 INFO L82 PathProgramCache]: Analyzing trace with hash -288445665, now seen corresponding path program 3 times
[2020-04-18 15:58:46,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:46,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484623660]
[2020-04-18 15:58:46,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:46,320 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:46,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484623660]
[2020-04-18 15:58:46,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:46,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:58:46,321 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:46,322 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:46,325 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions.
[2020-04-18 15:58:46,325 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:46,341 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:46,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:46,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:46,342 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states.
[2020-04-18 15:58:46,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:46,364 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 15:58:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 15:58:46,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:46,364 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1865752574]
[2020-04-18 15:58:46,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:46,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:58:46,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1865752574]
[2020-04-18 15:58:46,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:58:46,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:46,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:46,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:46,366 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states.
[2020-04-18 15:58:46,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:46,498 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions.
[2020-04-18 15:58:46,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:58:46,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17
[2020-04-18 15:58:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:46,527 INFO L225 Difference]: With dead ends: 12234
[2020-04-18 15:58:46,527 INFO L226 Difference]: Without dead ends: 12212
[2020-04-18 15:58:46,528 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:58:46,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states.
[2020-04-18 15:58:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342.
[2020-04-18 15:58:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states.
[2020-04-18 15:58:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions.
[2020-04-18 15:58:47,517 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17
[2020-04-18 15:58:47,517 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:47,517 INFO L479 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions.
[2020-04-18 15:58:47,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:58:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions.
[2020-04-18 15:58:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:47,518 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:47,518 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:47,518 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:47,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:47,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1255672082, now seen corresponding path program 1 times
[2020-04-18 15:58:47,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:47,519 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [427641292]
[2020-04-18 15:58:47,519 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:47,520 INFO L259 McrAutomatonBuilder]: Finished intersection with 76 states and 151 transitions.
[2020-04-18 15:58:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states.
[2020-04-18 15:58:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:47,521 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:47,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:47,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2036234440, now seen corresponding path program 2 times
[2020-04-18 15:58:47,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:47,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823487887]
[2020-04-18 15:58:47,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:47,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823487887]
[2020-04-18 15:58:47,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:47,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:47,538 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:47,539 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:47,545 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 101 transitions.
[2020-04-18 15:58:47,546 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:47,551 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:58:47,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:47,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:47,552 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states.
[2020-04-18 15:58:47,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:47,559 INFO L93 Difference]: Finished difference Result 89 states and 163 transitions.
[2020-04-18 15:58:47,559 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 163 transitions.
[2020-04-18 15:58:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:47,559 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:47,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1929444406, now seen corresponding path program 3 times
[2020-04-18 15:58:47,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:47,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707183332]
[2020-04-18 15:58:47,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:47,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707183332]
[2020-04-18 15:58:47,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:47,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:47,601 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:47,603 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:47,609 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 69 transitions.
[2020-04-18 15:58:47,609 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:47,620 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:58:47,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:47,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:47,620 INFO L87 Difference]: Start difference. First operand 89 states and 163 transitions. Second operand 5 states.
[2020-04-18 15:58:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:47,666 INFO L93 Difference]: Finished difference Result 96 states and 168 transitions.
[2020-04-18 15:58:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 168 transitions.
[2020-04-18 15:58:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:47,667 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1255672082, now seen corresponding path program 4 times
[2020-04-18 15:58:47,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:47,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538575967]
[2020-04-18 15:58:47,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:47,712 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:47,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538575967]
[2020-04-18 15:58:47,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12476914]
[2020-04-18 15:58:47,713 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:47,802 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:47,802 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:47,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:47,803 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:47,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:47,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:47,858 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:47,859 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:47,863 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions.
[2020-04-18 15:58:47,863 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:47,933 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:58:47,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:47,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:47,934 INFO L87 Difference]: Start difference. First operand 96 states and 168 transitions. Second operand 12 states.
[2020-04-18 15:58:48,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:48,090 INFO L93 Difference]: Finished difference Result 97 states and 168 transitions.
[2020-04-18 15:58:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 168 transitions.
[2020-04-18 15:58:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:48,090 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:48,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1976577008, now seen corresponding path program 5 times
[2020-04-18 15:58:48,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:48,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999464304]
[2020-04-18 15:58:48,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:48,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999464304]
[2020-04-18 15:58:48,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:48,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:48,144 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:48,146 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:48,149 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions.
[2020-04-18 15:58:48,149 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:48,173 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:48,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:48,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:58:48,173 INFO L87 Difference]: Start difference. First operand 97 states and 168 transitions. Second operand 7 states.
[2020-04-18 15:58:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:48,301 INFO L93 Difference]: Finished difference Result 100 states and 171 transitions.
[2020-04-18 15:58:48,301 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 171 transitions.
[2020-04-18 15:58:48,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:48,302 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [427641292]
[2020-04-18 15:58:48,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:48,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:48,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [427641292]
[2020-04-18 15:58:48,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:48,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:48,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:48,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:58:48,303 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 14 states.
[2020-04-18 15:58:48,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:48,888 INFO L93 Difference]: Finished difference Result 21543 states and 84183 transitions.
[2020-04-18 15:58:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:48,888 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19
[2020-04-18 15:58:48,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:48,962 INFO L225 Difference]: With dead ends: 21543
[2020-04-18 15:58:48,962 INFO L226 Difference]: Without dead ends: 21500
[2020-04-18 15:58:48,962 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:58:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21500 states.
[2020-04-18 15:58:49,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21500 to 8129.
[2020-04-18 15:58:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8129 states.
[2020-04-18 15:58:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8129 states to 8129 states and 37298 transitions.
[2020-04-18 15:58:49,516 INFO L78 Accepts]: Start accepts. Automaton has 8129 states and 37298 transitions. Word has length 19
[2020-04-18 15:58:49,516 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:49,516 INFO L479 AbstractCegarLoop]: Abstraction has 8129 states and 37298 transitions.
[2020-04-18 15:58:49,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 8129 states and 37298 transitions.
[2020-04-18 15:58:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:49,517 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:49,517 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:49,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:49,718 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:49,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:49,719 INFO L82 PathProgramCache]: Analyzing trace with hash 402059005, now seen corresponding path program 1 times
[2020-04-18 15:58:49,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:49,719 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1280743036]
[2020-04-18 15:58:49,720 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:49,722 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 111 transitions.
[2020-04-18 15:58:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states.
[2020-04-18 15:58:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:49,724 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:49,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:49,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1290022583, now seen corresponding path program 2 times
[2020-04-18 15:58:49,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:49,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029759696]
[2020-04-18 15:58:49,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:49,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029759696]
[2020-04-18 15:58:49,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:49,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:49,748 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:49,751 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:49,756 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 73 transitions.
[2020-04-18 15:58:49,756 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:49,768 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:58:49,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:49,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:49,769 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 3 states.
[2020-04-18 15:58:49,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:49,788 INFO L93 Difference]: Finished difference Result 69 states and 119 transitions.
[2020-04-18 15:58:49,788 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 119 transitions.
[2020-04-18 15:58:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:49,788 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:49,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1588616965, now seen corresponding path program 3 times
[2020-04-18 15:58:49,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:49,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118735556]
[2020-04-18 15:58:49,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:49,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118735556]
[2020-04-18 15:58:49,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212033414]
[2020-04-18 15:58:49,845 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:49,943 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 15:58:49,943 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:49,944 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 15:58:49,946 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:49,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:49,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 15:58:49,990 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:49,991 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:49,996 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 45 transitions.
[2020-04-18 15:58:49,996 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:50,047 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 15:58:50,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 15:58:50,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 15:58:50,047 INFO L87 Difference]: Start difference. First operand 69 states and 119 transitions. Second operand 8 states.
[2020-04-18 15:58:50,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:50,124 INFO L93 Difference]: Finished difference Result 76 states and 124 transitions.
[2020-04-18 15:58:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 124 transitions.
[2020-04-18 15:58:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:50,125 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash 402059005, now seen corresponding path program 4 times
[2020-04-18 15:58:50,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:50,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191062487]
[2020-04-18 15:58:50,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:50,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191062487]
[2020-04-18 15:58:50,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066643694]
[2020-04-18 15:58:50,176 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:50,255 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:50,255 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:50,256 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:50,257 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:50,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:50,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:58:50,327 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:50,329 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:50,334 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions.
[2020-04-18 15:58:50,334 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:50,374 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:50,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:50,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:50,375 INFO L87 Difference]: Start difference. First operand 76 states and 124 transitions. Second operand 12 states.
[2020-04-18 15:58:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:50,505 INFO L93 Difference]: Finished difference Result 77 states and 124 transitions.
[2020-04-18 15:58:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions.
[2020-04-18 15:58:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 15:58:50,506 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:50,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:50,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1976597437, now seen corresponding path program 5 times
[2020-04-18 15:58:50,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:50,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476774543]
[2020-04-18 15:58:50,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:50,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476774543]
[2020-04-18 15:58:50,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:50,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:58:50,553 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:50,554 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:50,557 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions.
[2020-04-18 15:58:50,557 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:50,581 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:50,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:58:50,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2020-04-18 15:58:50,581 INFO L87 Difference]: Start difference. First operand 77 states and 124 transitions. Second operand 7 states.
[2020-04-18 15:58:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:50,712 INFO L93 Difference]: Finished difference Result 80 states and 127 transitions.
[2020-04-18 15:58:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 127 transitions.
[2020-04-18 15:58:50,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:50,713 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1280743036]
[2020-04-18 15:58:50,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:50,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:58:50,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1280743036]
[2020-04-18 15:58:50,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:58:50,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:50,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:58:50,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756
[2020-04-18 15:58:50,715 INFO L87 Difference]: Start difference. First operand 8129 states and 37298 transitions. Second operand 14 states.
[2020-04-18 15:58:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:51,211 INFO L93 Difference]: Finished difference Result 21712 states and 85144 transitions.
[2020-04-18 15:58:51,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:58:51,212 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19
[2020-04-18 15:58:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:58:51,268 INFO L225 Difference]: With dead ends: 21712
[2020-04-18 15:58:51,268 INFO L226 Difference]: Without dead ends: 21662
[2020-04-18 15:58:51,269 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190
[2020-04-18 15:58:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21662 states.
[2020-04-18 15:58:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21662 to 8317.
[2020-04-18 15:58:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states.
[2020-04-18 15:58:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions.
[2020-04-18 15:58:51,883 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19
[2020-04-18 15:58:51,883 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:58:51,883 INFO L479 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions.
[2020-04-18 15:58:51,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:58:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions.
[2020-04-18 15:58:51,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:51,884 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:58:51,884 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:58:52,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:52,286 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:58:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:52,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1389591796, now seen corresponding path program 1 times
[2020-04-18 15:58:52,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:58:52,287 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [907821209]
[2020-04-18 15:58:52,288 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:52,291 INFO L259 McrAutomatonBuilder]: Finished intersection with 160 states and 405 transitions.
[2020-04-18 15:58:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states.
[2020-04-18 15:58:52,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:52,292 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:58:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:52,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1872752390, now seen corresponding path program 2 times
[2020-04-18 15:58:52,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:52,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701178204]
[2020-04-18 15:58:52,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:52,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701178204]
[2020-04-18 15:58:52,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:52,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:58:52,311 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:52,312 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:52,319 INFO L259 McrAutomatonBuilder]: Finished intersection with 67 states and 119 transitions.
[2020-04-18 15:58:52,319 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:52,325 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:58:52,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:58:52,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:58:52,326 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states.
[2020-04-18 15:58:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:52,342 INFO L93 Difference]: Finished difference Result 203 states and 475 transitions.
[2020-04-18 15:58:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 475 transitions.
[2020-04-18 15:58:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:52,343 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:58:52,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:52,343 INFO L82 PathProgramCache]: Analyzing trace with hash -491372936, now seen corresponding path program 3 times
[2020-04-18 15:58:52,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:52,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415647745]
[2020-04-18 15:58:52,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:52,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415647745]
[2020-04-18 15:58:52,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:52,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:58:52,377 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:52,378 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:52,384 INFO L259 McrAutomatonBuilder]: Finished intersection with 59 states and 99 transitions.
[2020-04-18 15:58:52,384 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:52,393 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:58:52,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:58:52,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:58:52,394 INFO L87 Difference]: Start difference. First operand 203 states and 475 transitions. Second operand 5 states.
[2020-04-18 15:58:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:52,467 INFO L93 Difference]: Finished difference Result 266 states and 576 transitions.
[2020-04-18 15:58:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 576 transitions.
[2020-04-18 15:58:52,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:52,468 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:58:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:52,468 INFO L82 PathProgramCache]: Analyzing trace with hash -203033836, now seen corresponding path program 4 times
[2020-04-18 15:58:52,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:52,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399816144]
[2020-04-18 15:58:52,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:52,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:52,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399816144]
[2020-04-18 15:58:52,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311288600]
[2020-04-18 15:58:52,520 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:52,623 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:58:52,624 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:52,625 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:52,626 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:52,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:52,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:58:52,686 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:52,687 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:52,693 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 79 transitions.
[2020-04-18 15:58:52,693 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:52,754 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 15:58:52,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:52,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:58:52,754 INFO L87 Difference]: Start difference. First operand 266 states and 576 transitions. Second operand 12 states.
[2020-04-18 15:58:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:53,102 INFO L93 Difference]: Finished difference Result 312 states and 632 transitions.
[2020-04-18 15:58:53,102 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 632 transitions.
[2020-04-18 15:58:53,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:53,103 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:58:53,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:53,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1389591796, now seen corresponding path program 5 times
[2020-04-18 15:58:53,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:53,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600337150]
[2020-04-18 15:58:53,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:53,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600337150]
[2020-04-18 15:58:53,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057697992]
[2020-04-18 15:58:53,191 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:53,281 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2020-04-18 15:58:53,281 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:53,282 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:53,284 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:58:53,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:53,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:53,370 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:53,371 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:53,377 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions.
[2020-04-18 15:58:53,378 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:53,421 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:53,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:53,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600
[2020-04-18 15:58:53,422 INFO L87 Difference]: Start difference. First operand 312 states and 632 transitions. Second operand 16 states.
[2020-04-18 15:58:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:54,214 INFO L93 Difference]: Finished difference Result 329 states and 643 transitions.
[2020-04-18 15:58:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 643 transitions.
[2020-04-18 15:58:54,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:54,215 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 15:58:54,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:54,216 INFO L82 PathProgramCache]: Analyzing trace with hash 184946636, now seen corresponding path program 6 times
[2020-04-18 15:58:54,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:54,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708881558]
[2020-04-18 15:58:54,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:54,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708881558]
[2020-04-18 15:58:54,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747038213]
[2020-04-18 15:58:54,292 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:54,379 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2020-04-18 15:58:54,379 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:54,380 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:54,386 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:58:54,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:54,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:54,499 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:54,501 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:54,507 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions.
[2020-04-18 15:58:54,507 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:54,564 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:58:54,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:54,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=1365, Unknown=0, NotChecked=0, Total=1806
[2020-04-18 15:58:54,565 INFO L87 Difference]: Start difference. First operand 329 states and 643 transitions. Second operand 16 states.
[2020-04-18 15:58:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:55,365 INFO L93 Difference]: Finished difference Result 358 states and 677 transitions.
[2020-04-18 15:58:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 677 transitions.
[2020-04-18 15:58:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:55,366 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 15:58:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:55,366 INFO L82 PathProgramCache]: Analyzing trace with hash 954987220, now seen corresponding path program 7 times
[2020-04-18 15:58:55,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:55,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428095954]
[2020-04-18 15:58:55,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:55,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428095954]
[2020-04-18 15:58:55,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685978586]
[2020-04-18 15:58:55,408 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:55,484 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:58:55,485 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:55,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:55,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:58:55,545 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:55,546 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:55,551 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 63 transitions.
[2020-04-18 15:58:55,551 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:55,790 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 15:58:55,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:58:55,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=909, Invalid=3381, Unknown=0, NotChecked=0, Total=4290
[2020-04-18 15:58:55,791 INFO L87 Difference]: Start difference. First operand 358 states and 677 transitions. Second operand 12 states.
[2020-04-18 15:58:56,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:56,163 INFO L93 Difference]: Finished difference Result 403 states and 735 transitions.
[2020-04-18 15:58:56,163 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 735 transitions.
[2020-04-18 15:58:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:56,164 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 15:58:56,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:56,165 INFO L82 PathProgramCache]: Analyzing trace with hash -231570740, now seen corresponding path program 8 times
[2020-04-18 15:58:56,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:56,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152594815]
[2020-04-18 15:58:56,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:56,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152594815]
[2020-04-18 15:58:56,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050749998]
[2020-04-18 15:58:56,262 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:56,334 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 15:58:56,334 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:56,335 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:56,335 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:56,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:56,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:56,417 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:56,419 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:56,424 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions.
[2020-04-18 15:58:56,424 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:56,425 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:58:56,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:56,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1071, Invalid=4331, Unknown=0, NotChecked=0, Total=5402
[2020-04-18 15:58:56,426 INFO L87 Difference]: Start difference. First operand 403 states and 735 transitions. Second operand 16 states.
[2020-04-18 15:58:57,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:57,137 INFO L93 Difference]: Finished difference Result 406 states and 736 transitions.
[2020-04-18 15:58:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 736 transitions.
[2020-04-18 15:58:57,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:57,138 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 15:58:57,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:57,139 INFO L82 PathProgramCache]: Analyzing trace with hash -168366002, now seen corresponding path program 9 times
[2020-04-18 15:58:57,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:57,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073484925]
[2020-04-18 15:58:57,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:57,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073484925]
[2020-04-18 15:58:57,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271326204]
[2020-04-18 15:58:57,204 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:58:57,280 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 15:58:57,280 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:58:57,281 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:58:57,281 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:58:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:58:57,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:58:57,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:58:57,359 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:57,361 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:57,366 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions.
[2020-04-18 15:58:57,367 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:57,399 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:58:57,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=6172, Unknown=0, NotChecked=0, Total=7656
[2020-04-18 15:58:57,400 INFO L87 Difference]: Start difference. First operand 406 states and 736 transitions. Second operand 16 states.
[2020-04-18 15:58:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:58,199 INFO L93 Difference]: Finished difference Result 441 states and 773 transitions.
[2020-04-18 15:58:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 773 transitions.
[2020-04-18 15:58:58,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:58,200 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 15:58:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1134578958, now seen corresponding path program 10 times
[2020-04-18 15:58:58,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:58,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343460192]
[2020-04-18 15:58:58,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:58,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343460192]
[2020-04-18 15:58:58,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:58,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:58:58,268 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:58,270 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:58,274 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 15:58:58,274 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:58,308 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:58,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:58:58,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2013, Invalid=9117, Unknown=0, NotChecked=0, Total=11130
[2020-04-18 15:58:58,309 INFO L87 Difference]: Start difference. First operand 441 states and 773 transitions. Second operand 9 states.
[2020-04-18 15:58:58,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:58,952 INFO L93 Difference]: Finished difference Result 441 states and 773 transitions.
[2020-04-18 15:58:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 773 transitions.
[2020-04-18 15:58:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:58:58,953 INFO L105 Mcr]: ---- MCR iteration 9 ----
[2020-04-18 15:58:58,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:58:58,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1114967118, now seen corresponding path program 11 times
[2020-04-18 15:58:58,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:58:58,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741393485]
[2020-04-18 15:58:58,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:58:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:58:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 15:58:59,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741393485]
[2020-04-18 15:58:59,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:58:59,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:58:59,022 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:58:59,024 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:58:59,027 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 15:58:59,027 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:58:59,027 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:58:59,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:58:59,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2511, Invalid=13491, Unknown=0, NotChecked=0, Total=16002
[2020-04-18 15:58:59,031 INFO L87 Difference]: Start difference. First operand 441 states and 773 transitions. Second operand 9 states.
[2020-04-18 15:58:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:58:59,863 INFO L93 Difference]: Finished difference Result 441 states and 773 transitions.
[2020-04-18 15:58:59,864 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 773 transitions.
[2020-04-18 15:58:59,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:58:59,865 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [907821209]
[2020-04-18 15:58:59,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:58:59,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 15:58:59,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [907821209]
[2020-04-18 15:58:59,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-04-18 15:58:59,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:58:59,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-04-18 15:58:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3051, Invalid=18119, Unknown=0, NotChecked=0, Total=21170
[2020-04-18 15:58:59,867 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 27 states.
[2020-04-18 15:59:02,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:02,443 INFO L93 Difference]: Finished difference Result 40046 states and 140359 transitions.
[2020-04-18 15:59:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states.
[2020-04-18 15:59:02,443 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 21
[2020-04-18 15:59:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:02,536 INFO L225 Difference]: With dead ends: 40046
[2020-04-18 15:59:02,536 INFO L226 Difference]: Without dead ends: 39961
[2020-04-18 15:59:02,538 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15742 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5608, Invalid=32222, Unknown=0, NotChecked=0, Total=37830
[2020-04-18 15:59:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39961 states.
[2020-04-18 15:59:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39961 to 7221.
[2020-04-18 15:59:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7221 states.
[2020-04-18 15:59:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 33268 transitions.
[2020-04-18 15:59:03,298 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 33268 transitions. Word has length 21
[2020-04-18 15:59:03,298 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:03,298 INFO L479 AbstractCegarLoop]: Abstraction has 7221 states and 33268 transitions.
[2020-04-18 15:59:03,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states.
[2020-04-18 15:59:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 33268 transitions.
[2020-04-18 15:59:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:59:03,299 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:03,299 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:04,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:04,506 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:04,506 INFO L82 PathProgramCache]: Analyzing trace with hash 210203517, now seen corresponding path program 1 times
[2020-04-18 15:59:04,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:04,507 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [928807450]
[2020-04-18 15:59:04,507 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:04,509 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 57 transitions.
[2020-04-18 15:59:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-04-18 15:59:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:59:04,509 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1640499895, now seen corresponding path program 2 times
[2020-04-18 15:59:04,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:04,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566712373]
[2020-04-18 15:59:04,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:04,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566712373]
[2020-04-18 15:59:04,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:04,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:04,528 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:04,530 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:04,534 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 55 transitions.
[2020-04-18 15:59:04,535 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:04,540 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:04,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:04,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:04,540 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states.
[2020-04-18 15:59:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:04,547 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2020-04-18 15:59:04,547 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions.
[2020-04-18 15:59:04,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 15:59:04,548 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:04,548 INFO L82 PathProgramCache]: Analyzing trace with hash 210203517, now seen corresponding path program 3 times
[2020-04-18 15:59:04,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:04,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608971686]
[2020-04-18 15:59:04,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:04,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608971686]
[2020-04-18 15:59:04,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:04,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:59:04,586 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:04,588 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:04,592 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 15:59:04,592 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:04,602 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:04,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:04,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:04,603 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand 5 states.
[2020-04-18 15:59:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:04,622 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2020-04-18 15:59:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions.
[2020-04-18 15:59:04,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:04,622 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [928807450]
[2020-04-18 15:59:04,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:04,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:59:04,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [928807450]
[2020-04-18 15:59:04,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:59:04,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:04,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:04,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:04,624 INFO L87 Difference]: Start difference. First operand 7221 states and 33268 transitions. Second operand 5 states.
[2020-04-18 15:59:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:04,761 INFO L93 Difference]: Finished difference Result 12418 states and 54012 transitions.
[2020-04-18 15:59:04,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:59:04,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21
[2020-04-18 15:59:04,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:04,790 INFO L225 Difference]: With dead ends: 12418
[2020-04-18 15:59:04,790 INFO L226 Difference]: Without dead ends: 12387
[2020-04-18 15:59:04,790 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12387 states.
[2020-04-18 15:59:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12387 to 8573.
[2020-04-18 15:59:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states.
[2020-04-18 15:59:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions.
[2020-04-18 15:59:05,036 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21
[2020-04-18 15:59:05,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:05,036 INFO L479 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions.
[2020-04-18 15:59:05,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:59:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions.
[2020-04-18 15:59:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:05,038 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:05,038 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:05,038 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:05,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:05,038 INFO L82 PathProgramCache]: Analyzing trace with hash 715669452, now seen corresponding path program 1 times
[2020-04-18 15:59:05,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:05,039 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1499947729]
[2020-04-18 15:59:05,039 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:05,042 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 203 transitions.
[2020-04-18 15:59:05,042 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states.
[2020-04-18 15:59:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:05,043 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:05,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:05,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1495794790, now seen corresponding path program 2 times
[2020-04-18 15:59:05,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:05,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838928139]
[2020-04-18 15:59:05,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:05,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:05,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838928139]
[2020-04-18 15:59:05,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:05,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:05,059 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:05,061 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:05,069 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions.
[2020-04-18 15:59:05,069 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:05,074 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:05,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:05,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:05,075 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states.
[2020-04-18 15:59:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:05,084 INFO L93 Difference]: Finished difference Result 117 states and 219 transitions.
[2020-04-18 15:59:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 219 transitions.
[2020-04-18 15:59:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:05,085 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:05,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1135033960, now seen corresponding path program 3 times
[2020-04-18 15:59:05,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:05,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324174083]
[2020-04-18 15:59:05,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:05,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324174083]
[2020-04-18 15:59:05,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:05,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:59:05,116 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:05,118 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:05,125 INFO L259 McrAutomatonBuilder]: Finished intersection with 61 states and 97 transitions.
[2020-04-18 15:59:05,125 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:05,135 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:05,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:05,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:05,136 INFO L87 Difference]: Start difference. First operand 117 states and 219 transitions. Second operand 5 states.
[2020-04-18 15:59:05,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:05,178 INFO L93 Difference]: Finished difference Result 124 states and 224 transitions.
[2020-04-18 15:59:05,179 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 224 transitions.
[2020-04-18 15:59:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:05,179 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:59:05,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:05,179 INFO L82 PathProgramCache]: Analyzing trace with hash 715669452, now seen corresponding path program 4 times
[2020-04-18 15:59:05,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:05,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245182998]
[2020-04-18 15:59:05,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:05,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245182998]
[2020-04-18 15:59:05,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746895843]
[2020-04-18 15:59:05,219 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:05,302 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:59:05,302 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:05,303 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:05,304 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:05,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:05,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:59:05,360 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:05,362 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:05,369 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 71 transitions.
[2020-04-18 15:59:05,369 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:05,426 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:05,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:05,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:59:05,427 INFO L87 Difference]: Start difference. First operand 124 states and 224 transitions. Second operand 12 states.
[2020-04-18 15:59:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:05,567 INFO L93 Difference]: Finished difference Result 125 states and 224 transitions.
[2020-04-18 15:59:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 224 transitions.
[2020-04-18 15:59:05,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:05,568 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:59:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:05,568 INFO L82 PathProgramCache]: Analyzing trace with hash 142103758, now seen corresponding path program 5 times
[2020-04-18 15:59:05,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:05,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522022793]
[2020-04-18 15:59:05,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:05,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522022793]
[2020-04-18 15:59:05,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:05,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:59:05,613 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:05,617 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:05,621 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions.
[2020-04-18 15:59:05,621 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:05,641 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:05,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:59:05,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:59:05,641 INFO L87 Difference]: Start difference. First operand 125 states and 224 transitions. Second operand 7 states.
[2020-04-18 15:59:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:05,767 INFO L93 Difference]: Finished difference Result 128 states and 227 transitions.
[2020-04-18 15:59:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 227 transitions.
[2020-04-18 15:59:05,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:05,768 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1499947729]
[2020-04-18 15:59:05,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:05,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:59:05,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1499947729]
[2020-04-18 15:59:05,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:59:05,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:05,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:59:05,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:59:05,770 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 14 states.
[2020-04-18 15:59:06,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:06,321 INFO L93 Difference]: Finished difference Result 22356 states and 88808 transitions.
[2020-04-18 15:59:06,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:59:06,321 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23
[2020-04-18 15:59:06,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:06,371 INFO L225 Difference]: With dead ends: 22356
[2020-04-18 15:59:06,371 INFO L226 Difference]: Without dead ends: 22295
[2020-04-18 15:59:06,371 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:59:06,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22295 states.
[2020-04-18 15:59:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22295 to 8496.
[2020-04-18 15:59:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8496 states.
[2020-04-18 15:59:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 38896 transitions.
[2020-04-18 15:59:06,982 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 38896 transitions. Word has length 23
[2020-04-18 15:59:06,982 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:06,982 INFO L479 AbstractCegarLoop]: Abstraction has 8496 states and 38896 transitions.
[2020-04-18 15:59:06,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:59:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 38896 transitions.
[2020-04-18 15:59:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:06,984 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:06,984 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:07,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:07,185 INFO L427 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:07,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:07,186 INFO L82 PathProgramCache]: Analyzing trace with hash 504272987, now seen corresponding path program 1 times
[2020-04-18 15:59:07,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:07,187 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [968428175]
[2020-04-18 15:59:07,188 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:07,190 INFO L259 McrAutomatonBuilder]: Finished intersection with 84 states and 163 transitions.
[2020-04-18 15:59:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states.
[2020-04-18 15:59:07,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:07,191 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:07,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:07,191 INFO L82 PathProgramCache]: Analyzing trace with hash 437048619, now seen corresponding path program 2 times
[2020-04-18 15:59:07,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:07,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571959277]
[2020-04-18 15:59:07,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:07,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571959277]
[2020-04-18 15:59:07,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:07,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:07,208 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:07,211 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:07,219 INFO L259 McrAutomatonBuilder]: Finished intersection with 65 states and 113 transitions.
[2020-04-18 15:59:07,220 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:07,226 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:07,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:07,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:07,227 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states.
[2020-04-18 15:59:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:07,235 INFO L93 Difference]: Finished difference Result 97 states and 175 transitions.
[2020-04-18 15:59:07,235 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 175 transitions.
[2020-04-18 15:59:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:07,236 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:07,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1460919065, now seen corresponding path program 3 times
[2020-04-18 15:59:07,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:07,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928029218]
[2020-04-18 15:59:07,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:07,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928029218]
[2020-04-18 15:59:07,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136982648]
[2020-04-18 15:59:07,275 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:07,354 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 15:59:07,354 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:07,355 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 15:59:07,356 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:07,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:07,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 15:59:07,395 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:07,399 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:07,405 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 73 transitions.
[2020-04-18 15:59:07,405 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:07,439 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:07,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 15:59:07,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 15:59:07,440 INFO L87 Difference]: Start difference. First operand 97 states and 175 transitions. Second operand 8 states.
[2020-04-18 15:59:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:07,508 INFO L93 Difference]: Finished difference Result 104 states and 180 transitions.
[2020-04-18 15:59:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 180 transitions.
[2020-04-18 15:59:07,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:07,509 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:59:07,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:07,509 INFO L82 PathProgramCache]: Analyzing trace with hash 504272987, now seen corresponding path program 4 times
[2020-04-18 15:59:07,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:07,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071065787]
[2020-04-18 15:59:07,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 15:59:07,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071065787]
[2020-04-18 15:59:07,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124943136]
[2020-04-18 15:59:07,562 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:07,637 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:59:07,637 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:07,638 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:07,639 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 15:59:07,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:07,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:59:07,691 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:07,692 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:07,697 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 55 transitions.
[2020-04-18 15:59:07,697 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:07,738 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:07,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:07,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:59:07,738 INFO L87 Difference]: Start difference. First operand 104 states and 180 transitions. Second operand 12 states.
[2020-04-18 15:59:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:07,875 INFO L93 Difference]: Finished difference Result 105 states and 180 transitions.
[2020-04-18 15:59:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 180 transitions.
[2020-04-18 15:59:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:07,876 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:59:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:07,876 INFO L82 PathProgramCache]: Analyzing trace with hash 142124187, now seen corresponding path program 5 times
[2020-04-18 15:59:07,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:07,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964433330]
[2020-04-18 15:59:07,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:07,911 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:07,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964433330]
[2020-04-18 15:59:07,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:07,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:59:07,912 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:07,913 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:07,917 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions.
[2020-04-18 15:59:07,917 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:07,935 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:07,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:59:07,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2020-04-18 15:59:07,936 INFO L87 Difference]: Start difference. First operand 105 states and 180 transitions. Second operand 7 states.
[2020-04-18 15:59:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:08,084 INFO L93 Difference]: Finished difference Result 108 states and 183 transitions.
[2020-04-18 15:59:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 183 transitions.
[2020-04-18 15:59:08,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:08,085 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [968428175]
[2020-04-18 15:59:08,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:08,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:59:08,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [968428175]
[2020-04-18 15:59:08,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:59:08,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:08,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:59:08,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756
[2020-04-18 15:59:08,086 INFO L87 Difference]: Start difference. First operand 8496 states and 38896 transitions. Second operand 14 states.
[2020-04-18 15:59:08,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:08,588 INFO L93 Difference]: Finished difference Result 22897 states and 90984 transitions.
[2020-04-18 15:59:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:59:08,588 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23
[2020-04-18 15:59:08,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:08,644 INFO L225 Difference]: With dead ends: 22897
[2020-04-18 15:59:08,644 INFO L226 Difference]: Without dead ends: 22832
[2020-04-18 15:59:08,644 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190
[2020-04-18 15:59:08,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22832 states.
[2020-04-18 15:59:08,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22832 to 8914.
[2020-04-18 15:59:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8914 states.
[2020-04-18 15:59:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8914 states to 8914 states and 40728 transitions.
[2020-04-18 15:59:09,025 INFO L78 Accepts]: Start accepts. Automaton has 8914 states and 40728 transitions. Word has length 23
[2020-04-18 15:59:09,025 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:09,025 INFO L479 AbstractCegarLoop]: Abstraction has 8914 states and 40728 transitions.
[2020-04-18 15:59:09,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:59:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8914 states and 40728 transitions.
[2020-04-18 15:59:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:09,027 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:09,027 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:09,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:09,428 INFO L427 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:09,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:09,429 INFO L82 PathProgramCache]: Analyzing trace with hash 591685125, now seen corresponding path program 1 times
[2020-04-18 15:59:09,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:09,430 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1884981784]
[2020-04-18 15:59:09,431 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:09,433 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 123 transitions.
[2020-04-18 15:59:09,434 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states.
[2020-04-18 15:59:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:09,434 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:09,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:09,435 INFO L82 PathProgramCache]: Analyzing trace with hash 24226369, now seen corresponding path program 2 times
[2020-04-18 15:59:09,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:09,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161795598]
[2020-04-18 15:59:09,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:09,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161795598]
[2020-04-18 15:59:09,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:09,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:09,454 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:09,456 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:09,461 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 85 transitions.
[2020-04-18 15:59:09,461 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:09,466 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:09,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:09,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:09,467 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states.
[2020-04-18 15:59:09,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:09,476 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions.
[2020-04-18 15:59:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 131 transitions.
[2020-04-18 15:59:09,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:09,476 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:09,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:09,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1778208495, now seen corresponding path program 3 times
[2020-04-18 15:59:09,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:09,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159787947]
[2020-04-18 15:59:09,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:09,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159787947]
[2020-04-18 15:59:09,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:09,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:59:09,506 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:09,507 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:09,511 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 49 transitions.
[2020-04-18 15:59:09,512 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:09,522 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:09,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:09,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:09,523 INFO L87 Difference]: Start difference. First operand 77 states and 131 transitions. Second operand 5 states.
[2020-04-18 15:59:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:09,567 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions.
[2020-04-18 15:59:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 136 transitions.
[2020-04-18 15:59:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:09,567 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:59:09,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:09,568 INFO L82 PathProgramCache]: Analyzing trace with hash 591685125, now seen corresponding path program 4 times
[2020-04-18 15:59:09,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:09,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361736924]
[2020-04-18 15:59:09,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:09,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361736924]
[2020-04-18 15:59:09,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644848982]
[2020-04-18 15:59:09,621 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:09,943 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:59:09,943 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:09,944 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:09,944 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:09,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:09,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:59:09,995 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:09,997 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:10,001 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 39 transitions.
[2020-04-18 15:59:10,001 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:10,061 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:10,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:10,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:59:10,062 INFO L87 Difference]: Start difference. First operand 84 states and 136 transitions. Second operand 12 states.
[2020-04-18 15:59:10,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:10,214 INFO L93 Difference]: Finished difference Result 85 states and 136 transitions.
[2020-04-18 15:59:10,214 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 136 transitions.
[2020-04-18 15:59:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 15:59:10,215 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:59:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:10,215 INFO L82 PathProgramCache]: Analyzing trace with hash 142117429, now seen corresponding path program 5 times
[2020-04-18 15:59:10,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:10,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639369295]
[2020-04-18 15:59:10,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:10,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639369295]
[2020-04-18 15:59:10,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:10,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:59:10,264 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:10,266 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:10,269 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions.
[2020-04-18 15:59:10,269 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:10,290 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:10,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:59:10,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2020-04-18 15:59:10,290 INFO L87 Difference]: Start difference. First operand 85 states and 136 transitions. Second operand 7 states.
[2020-04-18 15:59:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:10,424 INFO L93 Difference]: Finished difference Result 88 states and 139 transitions.
[2020-04-18 15:59:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 139 transitions.
[2020-04-18 15:59:10,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:10,425 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1884981784]
[2020-04-18 15:59:10,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:10,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:59:10,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1884981784]
[2020-04-18 15:59:10,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:59:10,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:10,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:59:10,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812
[2020-04-18 15:59:10,426 INFO L87 Difference]: Start difference. First operand 8914 states and 40728 transitions. Second operand 14 states.
[2020-04-18 15:59:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:11,015 INFO L93 Difference]: Finished difference Result 23298 states and 92821 transitions.
[2020-04-18 15:59:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:59:11,015 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23
[2020-04-18 15:59:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:11,076 INFO L225 Difference]: With dead ends: 23298
[2020-04-18 15:59:11,076 INFO L226 Difference]: Without dead ends: 23224
[2020-04-18 15:59:11,076 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=920, Unknown=0, NotChecked=0, Total=1260
[2020-04-18 15:59:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23224 states.
[2020-04-18 15:59:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23224 to 9426.
[2020-04-18 15:59:11,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states.
[2020-04-18 15:59:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions.
[2020-04-18 15:59:11,485 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23
[2020-04-18 15:59:11,485 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:11,485 INFO L479 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions.
[2020-04-18 15:59:11,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 15:59:11,485 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions.
[2020-04-18 15:59:11,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:11,488 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:11,488 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:11,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:11,689 INFO L427 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:11,690 INFO L82 PathProgramCache]: Analyzing trace with hash 925732074, now seen corresponding path program 1 times
[2020-04-18 15:59:11,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:11,690 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1453290540]
[2020-04-18 15:59:11,692 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:11,697 INFO L259 McrAutomatonBuilder]: Finished intersection with 232 states and 609 transitions.
[2020-04-18 15:59:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states.
[2020-04-18 15:59:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:11,699 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:11,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:11,699 INFO L82 PathProgramCache]: Analyzing trace with hash 920114268, now seen corresponding path program 2 times
[2020-04-18 15:59:11,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:11,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707638185]
[2020-04-18 15:59:11,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:11,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707638185]
[2020-04-18 15:59:11,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:11,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:11,715 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:11,717 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:11,728 INFO L259 McrAutomatonBuilder]: Finished intersection with 95 states and 175 transitions.
[2020-04-18 15:59:11,729 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:11,734 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:11,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:11,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:11,735 INFO L87 Difference]: Start difference. First operand 232 states. Second operand 3 states.
[2020-04-18 15:59:11,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:11,747 INFO L93 Difference]: Finished difference Result 295 states and 715 transitions.
[2020-04-18 15:59:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 715 transitions.
[2020-04-18 15:59:11,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:11,748 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:11,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:11,749 INFO L82 PathProgramCache]: Analyzing trace with hash -281079078, now seen corresponding path program 3 times
[2020-04-18 15:59:11,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:11,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153773323]
[2020-04-18 15:59:11,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:11,787 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:11,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153773323]
[2020-04-18 15:59:11,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:11,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:59:11,788 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:11,790 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:11,805 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 155 transitions.
[2020-04-18 15:59:11,805 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:11,817 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:11,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:11,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:11,817 INFO L87 Difference]: Start difference. First operand 295 states and 715 transitions. Second operand 5 states.
[2020-04-18 15:59:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:11,889 INFO L93 Difference]: Finished difference Result 386 states and 864 transitions.
[2020-04-18 15:59:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 864 transitions.
[2020-04-18 15:59:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:11,890 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:59:11,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1039459978, now seen corresponding path program 4 times
[2020-04-18 15:59:11,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:11,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009165499]
[2020-04-18 15:59:11,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:59:11,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009165499]
[2020-04-18 15:59:11,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581502792]
[2020-04-18 15:59:11,937 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:12,015 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:59:12,015 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:12,016 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:12,017 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:59:12,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:12,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:59:12,074 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:12,076 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:12,086 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 123 transitions.
[2020-04-18 15:59:12,086 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:12,151 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:12,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:12,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:59:12,152 INFO L87 Difference]: Start difference. First operand 386 states and 864 transitions. Second operand 12 states.
[2020-04-18 15:59:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:12,500 INFO L93 Difference]: Finished difference Result 436 states and 924 transitions.
[2020-04-18 15:59:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 924 transitions.
[2020-04-18 15:59:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:12,501 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:59:12,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:12,502 INFO L82 PathProgramCache]: Analyzing trace with hash 925732074, now seen corresponding path program 5 times
[2020-04-18 15:59:12,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:12,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66519420]
[2020-04-18 15:59:12,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:59:12,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66519420]
[2020-04-18 15:59:12,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763261589]
[2020-04-18 15:59:12,580 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:12,662 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2020-04-18 15:59:12,662 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:12,663 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:12,664 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:59:12,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:12,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:12,760 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:12,761 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:12,772 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 105 transitions.
[2020-04-18 15:59:12,772 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:12,824 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:12,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:12,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600
[2020-04-18 15:59:12,824 INFO L87 Difference]: Start difference. First operand 436 states and 924 transitions. Second operand 16 states.
[2020-04-18 15:59:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:14,298 INFO L93 Difference]: Finished difference Result 453 states and 935 transitions.
[2020-04-18 15:59:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 935 transitions.
[2020-04-18 15:59:14,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:14,299 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 15:59:14,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:14,300 INFO L82 PathProgramCache]: Analyzing trace with hash 563583274, now seen corresponding path program 6 times
[2020-04-18 15:59:14,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:14,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352582420]
[2020-04-18 15:59:14,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:14,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352582420]
[2020-04-18 15:59:14,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969626896]
[2020-04-18 15:59:14,379 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:14,458 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2020-04-18 15:59:14,458 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:14,459 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:14,460 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:14,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:14,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:14,543 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:14,546 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:14,554 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions.
[2020-04-18 15:59:14,555 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:14,603 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:14,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:14,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=1365, Unknown=0, NotChecked=0, Total=1806
[2020-04-18 15:59:14,604 INFO L87 Difference]: Start difference. First operand 453 states and 935 transitions. Second operand 16 states.
[2020-04-18 15:59:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:15,400 INFO L93 Difference]: Finished difference Result 482 states and 969 transitions.
[2020-04-18 15:59:15,400 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 969 transitions.
[2020-04-18 15:59:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:15,401 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 15:59:15,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:15,402 INFO L82 PathProgramCache]: Analyzing trace with hash 277559606, now seen corresponding path program 7 times
[2020-04-18 15:59:15,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:15,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508689180]
[2020-04-18 15:59:15,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:15,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508689180]
[2020-04-18 15:59:15,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832043828]
[2020-04-18 15:59:15,441 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:15,522 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:15,522 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:15,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:15,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:59:15,575 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:15,576 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:15,585 INFO L259 McrAutomatonBuilder]: Finished intersection with 67 states and 107 transitions.
[2020-04-18 15:59:15,585 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:15,649 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:15,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:15,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=909, Invalid=3381, Unknown=0, NotChecked=0, Total=4290
[2020-04-18 15:59:15,650 INFO L87 Difference]: Start difference. First operand 482 states and 969 transitions. Second operand 12 states.
[2020-04-18 15:59:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:16,026 INFO L93 Difference]: Finished difference Result 539 states and 1051 transitions.
[2020-04-18 15:59:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1051 transitions.
[2020-04-18 15:59:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:16,028 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 15:59:16,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:16,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2052215638, now seen corresponding path program 8 times
[2020-04-18 15:59:16,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:16,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610716491]
[2020-04-18 15:59:16,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:16,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610716491]
[2020-04-18 15:59:16,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838249678]
[2020-04-18 15:59:16,085 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:16,166 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 15:59:16,167 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:16,168 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:16,169 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:16,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:16,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:16,250 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:16,252 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:16,261 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions.
[2020-04-18 15:59:16,262 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:16,263 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:16,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:16,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1071, Invalid=4331, Unknown=0, NotChecked=0, Total=5402
[2020-04-18 15:59:16,264 INFO L87 Difference]: Start difference. First operand 539 states and 1051 transitions. Second operand 16 states.
[2020-04-18 15:59:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:17,018 INFO L93 Difference]: Finished difference Result 542 states and 1052 transitions.
[2020-04-18 15:59:17,018 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1052 transitions.
[2020-04-18 15:59:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:17,019 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 15:59:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:17,020 INFO L82 PathProgramCache]: Analyzing trace with hash -724977108, now seen corresponding path program 9 times
[2020-04-18 15:59:17,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:17,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087528522]
[2020-04-18 15:59:17,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 15:59:17,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087528522]
[2020-04-18 15:59:17,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520646718]
[2020-04-18 15:59:17,074 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:17,153 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 15:59:17,153 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:17,154 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:17,154 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 15:59:17,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:17,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:17,234 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:17,236 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:17,244 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 15:59:17,244 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:17,276 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:17,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:17,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=6172, Unknown=0, NotChecked=0, Total=7656
[2020-04-18 15:59:17,278 INFO L87 Difference]: Start difference. First operand 542 states and 1052 transitions. Second operand 16 states.
[2020-04-18 15:59:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:18,095 INFO L93 Difference]: Finished difference Result 577 states and 1089 transitions.
[2020-04-18 15:59:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1089 transitions.
[2020-04-18 15:59:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:18,097 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 15:59:18,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:18,097 INFO L82 PathProgramCache]: Analyzing trace with hash -857622932, now seen corresponding path program 10 times
[2020-04-18 15:59:18,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:18,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724000062]
[2020-04-18 15:59:18,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:18,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724000062]
[2020-04-18 15:59:18,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:18,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:59:18,189 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:18,191 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:18,197 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:18,197 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:18,220 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:18,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:59:18,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2013, Invalid=9117, Unknown=0, NotChecked=0, Total=11130
[2020-04-18 15:59:18,222 INFO L87 Difference]: Start difference. First operand 577 states and 1089 transitions. Second operand 9 states.
[2020-04-18 15:59:18,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:18,876 INFO L93 Difference]: Finished difference Result 577 states and 1089 transitions.
[2020-04-18 15:59:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1089 transitions.
[2020-04-18 15:59:18,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:18,878 INFO L105 Mcr]: ---- MCR iteration 9 ----
[2020-04-18 15:59:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:18,878 INFO L82 PathProgramCache]: Analyzing trace with hash -877234772, now seen corresponding path program 11 times
[2020-04-18 15:59:18,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:18,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457265493]
[2020-04-18 15:59:18,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:18,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457265493]
[2020-04-18 15:59:18,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:18,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:59:18,937 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:18,939 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:18,943 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:18,943 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:18,944 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:18,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:59:18,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2511, Invalid=13491, Unknown=0, NotChecked=0, Total=16002
[2020-04-18 15:59:18,945 INFO L87 Difference]: Start difference. First operand 577 states and 1089 transitions. Second operand 9 states.
[2020-04-18 15:59:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:19,585 INFO L93 Difference]: Finished difference Result 577 states and 1089 transitions.
[2020-04-18 15:59:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1089 transitions.
[2020-04-18 15:59:19,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:19,587 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1453290540]
[2020-04-18 15:59:19,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:19,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 15:59:19,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1453290540]
[2020-04-18 15:59:19,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-04-18 15:59:19,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:19,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-04-18 15:59:19,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3051, Invalid=18119, Unknown=0, NotChecked=0, Total=21170
[2020-04-18 15:59:19,590 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 27 states.
[2020-04-18 15:59:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:22,214 INFO L93 Difference]: Finished difference Result 43874 states and 156930 transitions.
[2020-04-18 15:59:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states.
[2020-04-18 15:59:22,215 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 25
[2020-04-18 15:59:22,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:22,307 INFO L225 Difference]: With dead ends: 43874
[2020-04-18 15:59:22,307 INFO L226 Difference]: Without dead ends: 43743
[2020-04-18 15:59:22,310 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15682 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5608, Invalid=32222, Unknown=0, NotChecked=0, Total=37830
[2020-04-18 15:59:22,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43743 states.
[2020-04-18 15:59:22,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43743 to 8476.
[2020-04-18 15:59:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8476 states.
[2020-04-18 15:59:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 38671 transitions.
[2020-04-18 15:59:22,887 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 38671 transitions. Word has length 25
[2020-04-18 15:59:22,888 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:22,888 INFO L479 AbstractCegarLoop]: Abstraction has 8476 states and 38671 transitions.
[2020-04-18 15:59:22,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states.
[2020-04-18 15:59:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 38671 transitions.
[2020-04-18 15:59:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:22,890 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:22,890 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:24,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:24,093 INFO L427 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:24,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1013144212, now seen corresponding path program 1 times
[2020-04-18 15:59:24,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:24,095 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [24924668]
[2020-04-18 15:59:24,096 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:24,100 INFO L259 McrAutomatonBuilder]: Finished intersection with 184 states and 457 transitions.
[2020-04-18 15:59:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states.
[2020-04-18 15:59:24,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:24,101 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:24,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:24,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1646878802, now seen corresponding path program 2 times
[2020-04-18 15:59:24,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:24,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361602898]
[2020-04-18 15:59:24,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:24,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361602898]
[2020-04-18 15:59:24,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:24,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:24,117 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:24,118 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:24,129 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 159 transitions.
[2020-04-18 15:59:24,129 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:24,135 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:24,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:24,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:24,136 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 3 states.
[2020-04-18 15:59:24,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:24,148 INFO L93 Difference]: Finished difference Result 231 states and 531 transitions.
[2020-04-18 15:59:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 531 transitions.
[2020-04-18 15:59:24,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:24,149 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:24,149 INFO L82 PathProgramCache]: Analyzing trace with hash 445685456, now seen corresponding path program 3 times
[2020-04-18 15:59:24,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:24,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708028927]
[2020-04-18 15:59:24,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:24,182 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:24,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708028927]
[2020-04-18 15:59:24,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:24,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 15:59:24,182 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:24,184 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:24,194 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 127 transitions.
[2020-04-18 15:59:24,194 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:24,206 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:24,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:24,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:24,207 INFO L87 Difference]: Start difference. First operand 231 states and 531 transitions. Second operand 5 states.
[2020-04-18 15:59:24,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:24,277 INFO L93 Difference]: Finished difference Result 294 states and 632 transitions.
[2020-04-18 15:59:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 632 transitions.
[2020-04-18 15:59:24,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:24,278 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:59:24,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:24,279 INFO L82 PathProgramCache]: Analyzing trace with hash -2095299714, now seen corresponding path program 4 times
[2020-04-18 15:59:24,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:24,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894951357]
[2020-04-18 15:59:24,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:24,338 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:59:24,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894951357]
[2020-04-18 15:59:24,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265519611]
[2020-04-18 15:59:24,339 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:24,423 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:59:24,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:24,424 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:24,425 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:59:24,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:24,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:59:24,484 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:24,486 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:24,498 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 99 transitions.
[2020-04-18 15:59:24,498 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:24,577 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times.
[2020-04-18 15:59:24,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:24,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:59:24,578 INFO L87 Difference]: Start difference. First operand 294 states and 632 transitions. Second operand 12 states.
[2020-04-18 15:59:25,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:25,005 INFO L93 Difference]: Finished difference Result 340 states and 688 transitions.
[2020-04-18 15:59:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 688 transitions.
[2020-04-18 15:59:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:25,006 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:59:25,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:25,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1013144212, now seen corresponding path program 5 times
[2020-04-18 15:59:25,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:25,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25481465]
[2020-04-18 15:59:25,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:59:25,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25481465]
[2020-04-18 15:59:25,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791023452]
[2020-04-18 15:59:25,061 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:25,139 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2020-04-18 15:59:25,140 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:25,140 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:25,141 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 15:59:25,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:25,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:25,214 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:25,217 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:25,226 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions.
[2020-04-18 15:59:25,227 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:25,290 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times.
[2020-04-18 15:59:25,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:25,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600
[2020-04-18 15:59:25,290 INFO L87 Difference]: Start difference. First operand 340 states and 688 transitions. Second operand 16 states.
[2020-04-18 15:59:25,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:25,992 INFO L93 Difference]: Finished difference Result 357 states and 699 transitions.
[2020-04-18 15:59:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 699 transitions.
[2020-04-18 15:59:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:25,993 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 15:59:25,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:25,993 INFO L82 PathProgramCache]: Analyzing trace with hash 563576516, now seen corresponding path program 6 times
[2020-04-18 15:59:25,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:25,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179523290]
[2020-04-18 15:59:25,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:26,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179523290]
[2020-04-18 15:59:26,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309618206]
[2020-04-18 15:59:26,060 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:26,133 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2020-04-18 15:59:26,133 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:26,134 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:26,134 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:26,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:26,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:26,214 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:26,216 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:26,224 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions.
[2020-04-18 15:59:26,225 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:26,274 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times.
[2020-04-18 15:59:26,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:26,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=1365, Unknown=0, NotChecked=0, Total=1806
[2020-04-18 15:59:26,274 INFO L87 Difference]: Start difference. First operand 357 states and 699 transitions. Second operand 16 states.
[2020-04-18 15:59:27,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:27,056 INFO L93 Difference]: Finished difference Result 386 states and 733 transitions.
[2020-04-18 15:59:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 733 transitions.
[2020-04-18 15:59:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:27,057 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 15:59:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:27,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1532253058, now seen corresponding path program 7 times
[2020-04-18 15:59:27,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:27,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482345727]
[2020-04-18 15:59:27,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:27,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482345727]
[2020-04-18 15:59:27,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:27,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 15:59:27,099 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:27,101 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:27,108 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 67 transitions.
[2020-04-18 15:59:27,108 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:27,138 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 15:59:27,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:59:27,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3161, Unknown=0, NotChecked=0, Total=4032
[2020-04-18 15:59:27,139 INFO L87 Difference]: Start difference. First operand 386 states and 733 transitions. Second operand 7 states.
[2020-04-18 15:59:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:27,392 INFO L93 Difference]: Finished difference Result 431 states and 791 transitions.
[2020-04-18 15:59:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 791 transitions.
[2020-04-18 15:59:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:27,393 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 15:59:27,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:27,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1576190868, now seen corresponding path program 8 times
[2020-04-18 15:59:27,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:27,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187905720]
[2020-04-18 15:59:27,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:27,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187905720]
[2020-04-18 15:59:27,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100381071]
[2020-04-18 15:59:27,445 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:27,526 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 15:59:27,527 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:27,527 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:27,528 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:27,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:27,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:27,616 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:27,618 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:27,625 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 15:59:27,625 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:27,662 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times.
[2020-04-18 15:59:27,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:27,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1050, Invalid=4352, Unknown=0, NotChecked=0, Total=5402
[2020-04-18 15:59:27,663 INFO L87 Difference]: Start difference. First operand 431 states and 791 transitions. Second operand 16 states.
[2020-04-18 15:59:28,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:28,469 INFO L93 Difference]: Finished difference Result 434 states and 792 transitions.
[2020-04-18 15:59:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 792 transitions.
[2020-04-18 15:59:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:28,471 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 15:59:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:28,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1673708886, now seen corresponding path program 9 times
[2020-04-18 15:59:28,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:28,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310462880]
[2020-04-18 15:59:28,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:28,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310462880]
[2020-04-18 15:59:28,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148521853]
[2020-04-18 15:59:28,560 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:28,680 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 15:59:28,680 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:28,681 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:28,683 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:28,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:28,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:28,817 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:28,822 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:28,834 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 41 transitions.
[2020-04-18 15:59:28,834 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:28,893 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:28,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:28,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1633, Invalid=7109, Unknown=0, NotChecked=0, Total=8742
[2020-04-18 15:59:28,895 INFO L87 Difference]: Start difference. First operand 434 states and 792 transitions. Second operand 16 states.
[2020-04-18 15:59:29,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:29,913 INFO L93 Difference]: Finished difference Result 469 states and 829 transitions.
[2020-04-18 15:59:29,913 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 829 transitions.
[2020-04-18 15:59:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:29,914 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 15:59:29,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:29,914 INFO L82 PathProgramCache]: Analyzing trace with hash -864117370, now seen corresponding path program 10 times
[2020-04-18 15:59:29,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:29,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475801428]
[2020-04-18 15:59:29,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:29,965 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:29,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475801428]
[2020-04-18 15:59:29,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:29,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:59:29,966 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:29,968 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:29,972 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:29,972 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:29,994 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:29,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:59:29,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2167, Invalid=10265, Unknown=0, NotChecked=0, Total=12432
[2020-04-18 15:59:29,996 INFO L87 Difference]: Start difference. First operand 469 states and 829 transitions. Second operand 9 states.
[2020-04-18 15:59:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:30,633 INFO L93 Difference]: Finished difference Result 469 states and 829 transitions.
[2020-04-18 15:59:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 829 transitions.
[2020-04-18 15:59:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:30,634 INFO L105 Mcr]: ---- MCR iteration 9 ----
[2020-04-18 15:59:30,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:30,634 INFO L82 PathProgramCache]: Analyzing trace with hash -877241530, now seen corresponding path program 11 times
[2020-04-18 15:59:30,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:30,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162515472]
[2020-04-18 15:59:30,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:30,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162515472]
[2020-04-18 15:59:30,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:30,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:59:30,693 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:30,696 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:30,702 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:30,702 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:30,702 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:30,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:59:30,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2687, Invalid=14869, Unknown=0, NotChecked=0, Total=17556
[2020-04-18 15:59:30,705 INFO L87 Difference]: Start difference. First operand 469 states and 829 transitions. Second operand 9 states.
[2020-04-18 15:59:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:31,372 INFO L93 Difference]: Finished difference Result 469 states and 829 transitions.
[2020-04-18 15:59:31,372 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 829 transitions.
[2020-04-18 15:59:31,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:31,374 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [24924668]
[2020-04-18 15:59:31,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:31,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 15:59:31,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [24924668]
[2020-04-18 15:59:31,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-04-18 15:59:31,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:31,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-04-18 15:59:31,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3180, Invalid=19170, Unknown=0, NotChecked=0, Total=22350
[2020-04-18 15:59:31,378 INFO L87 Difference]: Start difference. First operand 8476 states and 38671 transitions. Second operand 27 states.
[2020-04-18 15:59:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:33,828 INFO L93 Difference]: Finished difference Result 41954 states and 149908 transitions.
[2020-04-18 15:59:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states.
[2020-04-18 15:59:33,829 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 25
[2020-04-18 15:59:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:33,922 INFO L225 Difference]: With dead ends: 41954
[2020-04-18 15:59:33,922 INFO L226 Difference]: Without dead ends: 41818
[2020-04-18 15:59:33,924 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16579 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5804, Invalid=33996, Unknown=0, NotChecked=0, Total=39800
[2020-04-18 15:59:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41818 states.
[2020-04-18 15:59:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41818 to 7590.
[2020-04-18 15:59:34,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7590 states.
[2020-04-18 15:59:34,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 34684 transitions.
[2020-04-18 15:59:34,436 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 34684 transitions. Word has length 25
[2020-04-18 15:59:34,436 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:34,436 INFO L479 AbstractCegarLoop]: Abstraction has 7590 states and 34684 transitions.
[2020-04-18 15:59:34,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states.
[2020-04-18 15:59:34,436 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 34684 transitions.
[2020-04-18 15:59:34,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:34,438 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:34,438 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:35,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:35,440 INFO L427 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:35,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:35,441 INFO L82 PathProgramCache]: Analyzing trace with hash -275395741, now seen corresponding path program 1 times
[2020-04-18 15:59:35,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:35,441 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1016546251]
[2020-04-18 15:59:35,442 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:35,446 INFO L259 McrAutomatonBuilder]: Finished intersection with 168 states and 417 transitions.
[2020-04-18 15:59:35,447 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states.
[2020-04-18 15:59:35,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:35,448 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:35,448 INFO L82 PathProgramCache]: Analyzing trace with hash -611444317, now seen corresponding path program 2 times
[2020-04-18 15:59:35,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:35,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86427566]
[2020-04-18 15:59:35,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:35,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86427566]
[2020-04-18 15:59:35,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:35,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:35,466 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:35,468 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:35,476 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 131 transitions.
[2020-04-18 15:59:35,476 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:35,481 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:35,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:35,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:35,482 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 3 states.
[2020-04-18 15:59:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:35,493 INFO L93 Difference]: Finished difference Result 211 states and 487 transitions.
[2020-04-18 15:59:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 487 transitions.
[2020-04-18 15:59:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:35,494 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:35,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:35,495 INFO L82 PathProgramCache]: Analyzing trace with hash 802712159, now seen corresponding path program 3 times
[2020-04-18 15:59:35,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:35,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106509835]
[2020-04-18 15:59:35,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:35,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:35,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106509835]
[2020-04-18 15:59:35,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982966605]
[2020-04-18 15:59:35,522 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:35,600 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 15:59:35,600 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:35,601 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 15:59:35,602 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-04-18 15:59:35,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:35,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 15:59:35,630 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:35,632 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:35,640 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 103 transitions.
[2020-04-18 15:59:35,640 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:35,677 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:35,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 15:59:35,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 15:59:35,677 INFO L87 Difference]: Start difference. First operand 211 states and 487 transitions. Second operand 8 states.
[2020-04-18 15:59:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:35,794 INFO L93 Difference]: Finished difference Result 274 states and 588 transitions.
[2020-04-18 15:59:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 588 transitions.
[2020-04-18 15:59:35,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:35,795 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 15:59:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:35,796 INFO L82 PathProgramCache]: Analyzing trace with hash 911127629, now seen corresponding path program 4 times
[2020-04-18 15:59:35,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:35,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690297294]
[2020-04-18 15:59:35,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:35,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:59:35,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690297294]
[2020-04-18 15:59:35,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706762559]
[2020-04-18 15:59:35,854 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:35,948 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 15:59:35,948 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:35,949 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:35,951 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:59:36,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:36,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 15:59:36,039 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:36,043 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:36,056 INFO L259 McrAutomatonBuilder]: Finished intersection with 55 states and 83 transitions.
[2020-04-18 15:59:36,056 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:36,101 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 15:59:36,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:36,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2020-04-18 15:59:36,102 INFO L87 Difference]: Start difference. First operand 274 states and 588 transitions. Second operand 12 states.
[2020-04-18 15:59:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:36,421 INFO L93 Difference]: Finished difference Result 320 states and 644 transitions.
[2020-04-18 15:59:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 644 transitions.
[2020-04-18 15:59:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:36,422 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 15:59:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:36,422 INFO L82 PathProgramCache]: Analyzing trace with hash -275395741, now seen corresponding path program 5 times
[2020-04-18 15:59:36,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:36,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643358484]
[2020-04-18 15:59:36,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:36,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:59:36,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643358484]
[2020-04-18 15:59:36,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016693196]
[2020-04-18 15:59:36,481 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:36,560 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2020-04-18 15:59:36,561 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:36,561 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:36,562 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 15:59:36,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:36,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:36,643 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:36,644 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:36,652 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions.
[2020-04-18 15:59:36,652 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:36,706 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:36,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:36,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552
[2020-04-18 15:59:36,707 INFO L87 Difference]: Start difference. First operand 320 states and 644 transitions. Second operand 16 states.
[2020-04-18 15:59:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:37,536 INFO L93 Difference]: Finished difference Result 337 states and 655 transitions.
[2020-04-18 15:59:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 655 transitions.
[2020-04-18 15:59:37,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:37,537 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 15:59:37,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:37,537 INFO L82 PathProgramCache]: Analyzing trace with hash -724963437, now seen corresponding path program 6 times
[2020-04-18 15:59:37,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:37,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94733877]
[2020-04-18 15:59:37,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 15:59:37,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94733877]
[2020-04-18 15:59:37,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206606185]
[2020-04-18 15:59:37,593 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:37,667 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2020-04-18 15:59:37,667 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:37,667 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:37,668 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 15:59:37,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:37,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:37,751 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:37,753 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:37,760 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 15:59:37,760 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:37,810 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:37,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:37,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=1296, Unknown=0, NotChecked=0, Total=1722
[2020-04-18 15:59:37,811 INFO L87 Difference]: Start difference. First operand 337 states and 655 transitions. Second operand 16 states.
[2020-04-18 15:59:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:38,607 INFO L93 Difference]: Finished difference Result 366 states and 689 transitions.
[2020-04-18 15:59:38,607 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 689 transitions.
[2020-04-18 15:59:38,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:38,608 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 15:59:38,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:38,609 INFO L82 PathProgramCache]: Analyzing trace with hash -782879535, now seen corresponding path program 7 times
[2020-04-18 15:59:38,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:38,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701168421]
[2020-04-18 15:59:38,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:38,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701168421]
[2020-04-18 15:59:38,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:38,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-18 15:59:38,646 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:38,648 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:38,657 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 67 transitions.
[2020-04-18 15:59:38,657 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:38,738 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 15:59:38,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:59:38,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=849, Invalid=3057, Unknown=0, NotChecked=0, Total=3906
[2020-04-18 15:59:38,739 INFO L87 Difference]: Start difference. First operand 366 states and 689 transitions. Second operand 7 states.
[2020-04-18 15:59:39,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:39,096 INFO L93 Difference]: Finished difference Result 411 states and 747 transitions.
[2020-04-18 15:59:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 747 transitions.
[2020-04-18 15:59:39,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:39,097 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 15:59:39,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:39,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1969402905, now seen corresponding path program 8 times
[2020-04-18 15:59:39,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:39,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730319650]
[2020-04-18 15:59:39,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:39,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730319650]
[2020-04-18 15:59:39,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437747235]
[2020-04-18 15:59:39,180 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:39,317 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 15:59:39,318 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:39,320 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:39,322 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:39,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:39,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:39,525 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:39,527 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:39,534 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 15:59:39,534 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:39,575 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times.
[2020-04-18 15:59:39,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:39,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1026, Invalid=4230, Unknown=0, NotChecked=0, Total=5256
[2020-04-18 15:59:39,577 INFO L87 Difference]: Start difference. First operand 411 states and 747 transitions. Second operand 16 states.
[2020-04-18 15:59:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:40,439 INFO L93 Difference]: Finished difference Result 414 states and 748 transitions.
[2020-04-18 15:59:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 748 transitions.
[2020-04-18 15:59:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:40,440 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 15:59:40,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:40,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1673729315, now seen corresponding path program 9 times
[2020-04-18 15:59:40,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:40,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239301993]
[2020-04-18 15:59:40,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:40,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239301993]
[2020-04-18 15:59:40,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015184465]
[2020-04-18 15:59:40,507 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:40,587 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 15:59:40,587 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:40,588 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 15:59:40,589 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-04-18 15:59:40,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:40,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 15:59:40,669 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:40,671 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:40,677 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 41 transitions.
[2020-04-18 15:59:40,677 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:40,712 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 15:59:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 15:59:40,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1607, Invalid=6949, Unknown=0, NotChecked=0, Total=8556
[2020-04-18 15:59:40,714 INFO L87 Difference]: Start difference. First operand 414 states and 748 transitions. Second operand 16 states.
[2020-04-18 15:59:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:41,571 INFO L93 Difference]: Finished difference Result 449 states and 785 transitions.
[2020-04-18 15:59:41,571 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 785 transitions.
[2020-04-18 15:59:41,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:41,572 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 15:59:41,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:41,573 INFO L82 PathProgramCache]: Analyzing trace with hash -857609261, now seen corresponding path program 10 times
[2020-04-18 15:59:41,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:41,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281461534]
[2020-04-18 15:59:41,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:41,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281461534]
[2020-04-18 15:59:41,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:41,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:59:41,624 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:41,625 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:41,630 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:41,630 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:41,652 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:41,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:59:41,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2141, Invalid=10069, Unknown=0, NotChecked=0, Total=12210
[2020-04-18 15:59:41,653 INFO L87 Difference]: Start difference. First operand 449 states and 785 transitions. Second operand 9 states.
[2020-04-18 15:59:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:42,290 INFO L93 Difference]: Finished difference Result 449 states and 785 transitions.
[2020-04-18 15:59:42,290 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 785 transitions.
[2020-04-18 15:59:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:42,291 INFO L105 Mcr]: ---- MCR iteration 9 ----
[2020-04-18 15:59:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash -864096941, now seen corresponding path program 11 times
[2020-04-18 15:59:42,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:42,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730326715]
[2020-04-18 15:59:42,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 15:59:42,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730326715]
[2020-04-18 15:59:42,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:42,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 15:59:42,345 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:42,347 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:42,353 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:42,353 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:42,353 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:42,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 15:59:42,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2595, Invalid=14175, Unknown=0, NotChecked=0, Total=16770
[2020-04-18 15:59:42,355 INFO L87 Difference]: Start difference. First operand 449 states and 785 transitions. Second operand 9 states.
[2020-04-18 15:59:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:43,039 INFO L93 Difference]: Finished difference Result 449 states and 785 transitions.
[2020-04-18 15:59:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 785 transitions.
[2020-04-18 15:59:43,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:43,041 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1016546251]
[2020-04-18 15:59:43,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:43,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 15:59:43,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1016546251]
[2020-04-18 15:59:43,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-04-18 15:59:43,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:43,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-04-18 15:59:43,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3153, Invalid=18899, Unknown=0, NotChecked=0, Total=22052
[2020-04-18 15:59:43,044 INFO L87 Difference]: Start difference. First operand 7590 states and 34684 transitions. Second operand 27 states.
[2020-04-18 15:59:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:45,805 INFO L93 Difference]: Finished difference Result 40099 states and 143461 transitions.
[2020-04-18 15:59:45,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states.
[2020-04-18 15:59:45,805 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 25
[2020-04-18 15:59:45,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:45,897 INFO L225 Difference]: With dead ends: 40099
[2020-04-18 15:59:45,897 INFO L226 Difference]: Without dead ends: 39958
[2020-04-18 15:59:45,899 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16332 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=5768, Invalid=33634, Unknown=0, NotChecked=0, Total=39402
[2020-04-18 15:59:46,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39958 states.
[2020-04-18 15:59:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39958 to 7269.
[2020-04-18 15:59:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7269 states.
[2020-04-18 15:59:46,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7269 states to 7269 states and 33154 transitions.
[2020-04-18 15:59:46,388 INFO L78 Accepts]: Start accepts. Automaton has 7269 states and 33154 transitions. Word has length 25
[2020-04-18 15:59:46,388 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:46,388 INFO L479 AbstractCegarLoop]: Abstraction has 7269 states and 33154 transitions.
[2020-04-18 15:59:46,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states.
[2020-04-18 15:59:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 7269 states and 33154 transitions.
[2020-04-18 15:59:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:46,390 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:46,391 INFO L425 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:47,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:47,594 INFO L427 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:47,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:47,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1311164244, now seen corresponding path program 1 times
[2020-04-18 15:59:47,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:47,595 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [323777255]
[2020-04-18 15:59:47,596 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:47,598 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions.
[2020-04-18 15:59:47,598 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states.
[2020-04-18 15:59:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:47,598 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:47,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:47,599 INFO L82 PathProgramCache]: Analyzing trace with hash 132471698, now seen corresponding path program 2 times
[2020-04-18 15:59:47,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:47,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921815522]
[2020-04-18 15:59:47,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2020-04-18 15:59:47,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921815522]
[2020-04-18 15:59:47,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:47,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 15:59:47,613 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:47,615 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:47,622 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 67 transitions.
[2020-04-18 15:59:47,622 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:47,627 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 15:59:47,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:47,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:47,628 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states.
[2020-04-18 15:59:47,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:47,631 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions.
[2020-04-18 15:59:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions.
[2020-04-18 15:59:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 15:59:47,632 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:47,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:47,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1311164244, now seen corresponding path program 3 times
[2020-04-18 15:59:47,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:47,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932037437]
[2020-04-18 15:59:47,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2020-04-18 15:59:47,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932037437]
[2020-04-18 15:59:47,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:47,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:59:47,662 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:47,664 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:47,668 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 15:59:47,669 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:47,678 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:47,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:47,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:47,679 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand 5 states.
[2020-04-18 15:59:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:47,697 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions.
[2020-04-18 15:59:47,697 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions.
[2020-04-18 15:59:47,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:47,698 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [323777255]
[2020-04-18 15:59:47,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:47,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:59:47,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [323777255]
[2020-04-18 15:59:47,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:59:47,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:47,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:47,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:47,699 INFO L87 Difference]: Start difference. First operand 7269 states and 33154 transitions. Second operand 5 states.
[2020-04-18 15:59:47,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:47,883 INFO L93 Difference]: Finished difference Result 11919 states and 51979 transitions.
[2020-04-18 15:59:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:59:47,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25
[2020-04-18 15:59:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:47,937 INFO L225 Difference]: With dead ends: 11919
[2020-04-18 15:59:47,937 INFO L226 Difference]: Without dead ends: 11887
[2020-04-18 15:59:47,937 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11887 states.
[2020-04-18 15:59:48,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11887 to 8560.
[2020-04-18 15:59:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states.
[2020-04-18 15:59:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions.
[2020-04-18 15:59:48,396 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25
[2020-04-18 15:59:48,396 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:48,396 INFO L479 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions.
[2020-04-18 15:59:48,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:59:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions.
[2020-04-18 15:59:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-04-18 15:59:48,401 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:48,401 INFO L425 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:48,401 INFO L427 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:48,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:48,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1986416772, now seen corresponding path program 1 times
[2020-04-18 15:59:48,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:48,402 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1953471529]
[2020-04-18 15:59:48,403 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:48,404 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 26 transitions.
[2020-04-18 15:59:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states.
[2020-04-18 15:59:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-04-18 15:59:48,405 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:48,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1986416772, now seen corresponding path program 2 times
[2020-04-18 15:59:48,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:48,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319043328]
[2020-04-18 15:59:48,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:59:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-04-18 15:59:48,449 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-04-18 15:59:48,449 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace
[2020-04-18 15:59:48,449 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-04-18 15:59:48,449 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-04-18 15:59:48,451 WARN L363 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-04-18 15:59:48,452 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances.
[2020-04-18 15:59:48,467 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,468 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,469 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,469 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,469 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,469 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,469 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,469 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,470 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,470 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,470 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,470 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,470 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,471 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,471 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,471 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,471 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,471 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,472 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,473 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,473 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,473 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,473 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,475 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,476 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,477 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,477 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,478 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,487 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,487 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,487 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,488 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,491 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,493 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,493 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,493 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,493 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,493 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,497 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,497 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,500 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,500 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,501 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,501 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,501 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,502 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,502 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,503 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,503 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,503 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,504 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,504 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,505 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,505 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,505 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,508 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,508 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,508 WARN L315 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,509 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,509 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,510 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,510 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,510 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,510 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,511 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,511 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,511 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,512 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,513 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,513 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,513 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,514 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,514 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,514 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,516 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,517 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,517 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,519 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,519 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,519 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,519 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,519 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,519 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,521 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,521 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,521 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,521 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,521 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,521 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 15:59:48,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2020-04-18 15:59:48,524 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 15:59:48,524 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 15:59:48,524 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 15:59:48,524 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 15:59:48,524 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 15:59:48,524 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 15:59:48,524 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 15:59:48,524 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 15:59:48,526 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 138 transitions, 396 flow
[2020-04-18 15:59:48,526 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 138 transitions, 396 flow
[2020-04-18 15:59:48,544 INFO L129 PetriNetUnfolder]: 9/173 cut-off events.
[2020-04-18 15:59:48,544 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES.
[2020-04-18 15:59:48,545 INFO L80 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 173 events. 9/173 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 284 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 208. Up to 14 conditions per place.
[2020-04-18 15:59:48,550 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 138 transitions, 396 flow
[2020-04-18 15:59:48,570 INFO L129 PetriNetUnfolder]: 9/173 cut-off events.
[2020-04-18 15:59:48,570 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES.
[2020-04-18 15:59:48,571 INFO L80 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 173 events. 9/173 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 284 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 208. Up to 14 conditions per place.
[2020-04-18 15:59:48,576 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2832
[2020-04-18 15:59:48,577 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 15:59:50,502 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61
[2020-04-18 15:59:50,790 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75
[2020-04-18 15:59:50,879 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3678
[2020-04-18 15:59:50,879 INFO L214 etLargeBlockEncoding]: Total number of compositions: 113
[2020-04-18 15:59:50,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow
[2020-04-18 15:59:52,490 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states.
[2020-04-18 15:59:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states.
[2020-04-18 15:59:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:59:52,491 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:52,491 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1]
[2020-04-18 15:59:52,491 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:52,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1298891, now seen corresponding path program 1 times
[2020-04-18 15:59:52,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:52,491 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [455939762]
[2020-04-18 15:59:52,492 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:52,492 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:59:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states.
[2020-04-18 15:59:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-04-18 15:59:52,492 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:52,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:52,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1298891, now seen corresponding path program 2 times
[2020-04-18 15:59:52,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:52,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008503970]
[2020-04-18 15:59:52,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:52,508 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 15:59:52,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008503970]
[2020-04-18 15:59:52,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:52,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 15:59:52,508 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:52,509 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:52,509 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions.
[2020-04-18 15:59:52,509 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:52,513 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:52,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:52,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:52,513 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states.
[2020-04-18 15:59:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:52,514 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions.
[2020-04-18 15:59:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions.
[2020-04-18 15:59:52,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:52,514 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [455939762]
[2020-04-18 15:59:52,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:52,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1
[2020-04-18 15:59:52,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [455939762]
[2020-04-18 15:59:52,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 15:59:52,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:52,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 15:59:52,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:52,515 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states.
[2020-04-18 15:59:52,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:52,648 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions.
[2020-04-18 15:59:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 15:59:52,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2020-04-18 15:59:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:52,697 INFO L225 Difference]: With dead ends: 17885
[2020-04-18 15:59:52,698 INFO L226 Difference]: Without dead ends: 16791
[2020-04-18 15:59:52,698 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 15:59:53,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states.
[2020-04-18 15:59:53,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791.
[2020-04-18 15:59:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states.
[2020-04-18 15:59:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions.
[2020-04-18 15:59:53,476 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3
[2020-04-18 15:59:53,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:53,477 INFO L479 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions.
[2020-04-18 15:59:53,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 15:59:53,477 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions.
[2020-04-18 15:59:53,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:59:53,477 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:53,477 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:53,477 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:53,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1091574945, now seen corresponding path program 1 times
[2020-04-18 15:59:53,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:53,478 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [205817349]
[2020-04-18 15:59:53,478 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:53,478 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions.
[2020-04-18 15:59:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states.
[2020-04-18 15:59:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 15:59:53,478 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:53,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:53,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1091574945, now seen corresponding path program 2 times
[2020-04-18 15:59:53,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:53,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330275155]
[2020-04-18 15:59:53,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:53,505 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 15:59:53,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330275155]
[2020-04-18 15:59:53,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:53,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:59:53,506 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:53,506 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:53,507 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-04-18 15:59:53,507 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:53,521 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:53,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:53,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:53,522 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states.
[2020-04-18 15:59:53,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:53,546 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions.
[2020-04-18 15:59:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions.
[2020-04-18 15:59:53,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:53,546 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [205817349]
[2020-04-18 15:59:53,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:53,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:59:53,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [205817349]
[2020-04-18 15:59:53,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:59:53,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:53,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:53,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:53,548 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states.
[2020-04-18 15:59:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:53,787 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions.
[2020-04-18 15:59:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:59:53,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-04-18 15:59:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:53,872 INFO L225 Difference]: With dead ends: 30985
[2020-04-18 15:59:53,872 INFO L226 Difference]: Without dead ends: 30977
[2020-04-18 15:59:53,872 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states.
[2020-04-18 15:59:56,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868.
[2020-04-18 15:59:56,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states.
[2020-04-18 15:59:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions.
[2020-04-18 15:59:56,543 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9
[2020-04-18 15:59:56,543 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:56,543 INFO L479 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions.
[2020-04-18 15:59:56,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:59:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions.
[2020-04-18 15:59:56,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:59:56,543 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:56,543 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:56,543 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:56,544 INFO L82 PathProgramCache]: Analyzing trace with hash -231509072, now seen corresponding path program 1 times
[2020-04-18 15:59:56,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:56,544 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [522229744]
[2020-04-18 15:59:56,544 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:56,545 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 33 transitions.
[2020-04-18 15:59:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-04-18 15:59:56,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-18 15:59:56,545 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:56,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:56,545 INFO L82 PathProgramCache]: Analyzing trace with hash -231509072, now seen corresponding path program 2 times
[2020-04-18 15:59:56,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:56,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116328844]
[2020-04-18 15:59:56,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:59:56,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116328844]
[2020-04-18 15:59:56,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:56,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 15:59:56,569 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:56,569 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:56,571 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions.
[2020-04-18 15:59:56,571 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:56,584 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:56,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:56,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 15:59:56,584 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states.
[2020-04-18 15:59:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:56,610 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions.
[2020-04-18 15:59:56,610 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions.
[2020-04-18 15:59:56,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:56,611 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [522229744]
[2020-04-18 15:59:56,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:56,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 15:59:56,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [522229744]
[2020-04-18 15:59:56,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 15:59:56,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:56,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 15:59:56,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:56,611 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states.
[2020-04-18 15:59:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:56,866 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions.
[2020-04-18 15:59:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 15:59:56,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-18 15:59:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 15:59:56,977 INFO L225 Difference]: With dead ends: 36296
[2020-04-18 15:59:56,978 INFO L226 Difference]: Without dead ends: 36280
[2020-04-18 15:59:56,978 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 15:59:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states.
[2020-04-18 15:59:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806.
[2020-04-18 15:59:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states.
[2020-04-18 15:59:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions.
[2020-04-18 15:59:58,142 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13
[2020-04-18 15:59:58,142 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 15:59:58,142 INFO L479 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions.
[2020-04-18 15:59:58,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 15:59:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions.
[2020-04-18 15:59:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:59:58,143 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 15:59:58,143 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 15:59:58,143 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 15:59:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash -588793474, now seen corresponding path program 1 times
[2020-04-18 15:59:58,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 15:59:58,144 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1325355038]
[2020-04-18 15:59:58,144 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:58,145 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 99 transitions.
[2020-04-18 15:59:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states.
[2020-04-18 15:59:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:59:58,145 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 15:59:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:58,146 INFO L82 PathProgramCache]: Analyzing trace with hash -588793474, now seen corresponding path program 2 times
[2020-04-18 15:59:58,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:58,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703445198]
[2020-04-18 15:59:58,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:59:58,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703445198]
[2020-04-18 15:59:58,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326701529]
[2020-04-18 15:59:58,184 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 15:59:58,266 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 15:59:58,266 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 15:59:58,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 15:59:58,267 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 15:59:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 15:59:58,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 15:59:58,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 15:59:58,330 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:58,330 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:58,333 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions.
[2020-04-18 15:59:58,333 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:58,399 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:58,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 15:59:58,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132
[2020-04-18 15:59:58,400 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 12 states.
[2020-04-18 15:59:58,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:58,553 INFO L93 Difference]: Finished difference Result 56 states and 103 transitions.
[2020-04-18 15:59:58,553 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions.
[2020-04-18 15:59:58,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-18 15:59:58,554 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 15:59:58,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 15:59:58,554 INFO L82 PathProgramCache]: Analyzing trace with hash 858081470, now seen corresponding path program 3 times
[2020-04-18 15:59:58,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 15:59:58,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28401927]
[2020-04-18 15:59:58,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 15:59:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 15:59:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 15:59:58,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28401927]
[2020-04-18 15:59:58,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 15:59:58,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 15:59:58,590 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 15:59:58,590 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 15:59:58,591 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions.
[2020-04-18 15:59:58,592 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 15:59:58,612 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 15:59:58,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 15:59:58,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2020-04-18 15:59:58,613 INFO L87 Difference]: Start difference. First operand 56 states and 103 transitions. Second operand 7 states.
[2020-04-18 15:59:58,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:58,744 INFO L93 Difference]: Finished difference Result 59 states and 106 transitions.
[2020-04-18 15:59:58,744 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions.
[2020-04-18 15:59:58,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 15:59:58,745 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1325355038]
[2020-04-18 15:59:58,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 15:59:58,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 15:59:58,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1325355038]
[2020-04-18 15:59:58,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 15:59:58,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 15:59:58,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 15:59:58,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756
[2020-04-18 15:59:58,746 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 14 states.
[2020-04-18 15:59:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 15:59:59,867 INFO L93 Difference]: Finished difference Result 65163 states and 295360 transitions.
[2020-04-18 15:59:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 15:59:59,867 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15
[2020-04-18 15:59:59,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:00,046 INFO L225 Difference]: With dead ends: 65163
[2020-04-18 16:00:00,046 INFO L226 Difference]: Without dead ends: 65130
[2020-04-18 16:00:00,046 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190
[2020-04-18 16:00:00,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65130 states.
[2020-04-18 16:00:01,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65130 to 23109.
[2020-04-18 16:00:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states.
[2020-04-18 16:00:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions.
[2020-04-18 16:00:01,592 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15
[2020-04-18 16:00:01,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:01,592 INFO L479 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions.
[2020-04-18 16:00:01,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 16:00:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions.
[2020-04-18 16:00:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 16:00:01,592 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:01,592 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:01,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:01,793 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash 704376303, now seen corresponding path program 1 times
[2020-04-18 16:00:01,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:01,795 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [591450120]
[2020-04-18 16:00:01,795 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:01,796 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 45 transitions.
[2020-04-18 16:00:01,797 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2020-04-18 16:00:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 16:00:01,797 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:01,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:01,797 INFO L82 PathProgramCache]: Analyzing trace with hash 707599383, now seen corresponding path program 2 times
[2020-04-18 16:00:01,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:01,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813776773]
[2020-04-18 16:00:01,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:00:01,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813776773]
[2020-04-18 16:00:01,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:01,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 16:00:01,814 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:01,815 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:01,817 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 43 transitions.
[2020-04-18 16:00:01,817 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:01,848 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times.
[2020-04-18 16:00:01,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 16:00:01,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-04-18 16:00:01,849 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 7 states.
[2020-04-18 16:00:01,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:01,870 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 16:00:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 16:00:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 16:00:01,871 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:01,871 INFO L82 PathProgramCache]: Analyzing trace with hash 704376303, now seen corresponding path program 3 times
[2020-04-18 16:00:01,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:01,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736090012]
[2020-04-18 16:00:01,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:01,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736090012]
[2020-04-18 16:00:01,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:01,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 16:00:01,898 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:01,899 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:01,901 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions.
[2020-04-18 16:00:01,901 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:01,916 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:01,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 16:00:01,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2020-04-18 16:00:01,916 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states.
[2020-04-18 16:00:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:01,943 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions.
[2020-04-18 16:00:01,944 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions.
[2020-04-18 16:00:01,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:01,944 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [591450120]
[2020-04-18 16:00:01,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:01,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 16:00:01,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [591450120]
[2020-04-18 16:00:01,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-04-18 16:00:01,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:01,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:00:01,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2020-04-18 16:00:01,946 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 9 states.
[2020-04-18 16:00:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:02,379 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions.
[2020-04-18 16:00:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-04-18 16:00:02,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17
[2020-04-18 16:00:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:02,505 INFO L225 Difference]: With dead ends: 41885
[2020-04-18 16:00:02,506 INFO L226 Difference]: Without dead ends: 41856
[2020-04-18 16:00:02,506 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210
[2020-04-18 16:00:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states.
[2020-04-18 16:00:04,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237.
[2020-04-18 16:00:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states.
[2020-04-18 16:00:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions.
[2020-04-18 16:00:04,282 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17
[2020-04-18 16:00:04,282 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:04,282 INFO L479 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions.
[2020-04-18 16:00:04,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-04-18 16:00:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions.
[2020-04-18 16:00:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:04,283 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:04,283 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:04,283 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:04,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1918672061, now seen corresponding path program 1 times
[2020-04-18 16:00:04,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:04,283 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1461863821]
[2020-04-18 16:00:04,284 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:04,285 INFO L259 McrAutomatonBuilder]: Finished intersection with 76 states and 151 transitions.
[2020-04-18 16:00:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states.
[2020-04-18 16:00:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:04,285 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1921895141, now seen corresponding path program 2 times
[2020-04-18 16:00:04,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:04,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408967359]
[2020-04-18 16:00:04,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:00:04,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408967359]
[2020-04-18 16:00:04,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55866653]
[2020-04-18 16:00:04,317 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:04,402 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:00:04,403 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:04,403 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 16:00:04,404 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:00:04,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:04,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 16:00:04,431 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:04,432 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:04,437 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 69 transitions.
[2020-04-18 16:00:04,437 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:04,517 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times.
[2020-04-18 16:00:04,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-04-18 16:00:04,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2020-04-18 16:00:04,518 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 11 states.
[2020-04-18 16:00:04,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:04,629 INFO L93 Difference]: Finished difference Result 85 states and 158 transitions.
[2020-04-18 16:00:04,629 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 158 transitions.
[2020-04-18 16:00:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:04,630 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:04,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:04,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1918672061, now seen corresponding path program 3 times
[2020-04-18 16:00:04,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:04,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673060054]
[2020-04-18 16:00:04,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:04,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673060054]
[2020-04-18 16:00:04,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692731490]
[2020-04-18 16:00:04,699 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:04,786 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2020-04-18 16:00:04,786 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:04,787 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:04,787 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:04,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:04,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 16:00:04,838 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:04,838 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:04,842 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions.
[2020-04-18 16:00:04,842 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:04,885 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:04,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:04,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272
[2020-04-18 16:00:04,886 INFO L87 Difference]: Start difference. First operand 85 states and 158 transitions. Second operand 12 states.
[2020-04-18 16:00:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:05,024 INFO L93 Difference]: Finished difference Result 86 states and 158 transitions.
[2020-04-18 16:00:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 158 transitions.
[2020-04-18 16:00:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:05,024 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:05,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:05,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1699205315, now seen corresponding path program 4 times
[2020-04-18 16:00:05,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:05,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972109299]
[2020-04-18 16:00:05,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:05,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972109299]
[2020-04-18 16:00:05,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:05,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 16:00:05,062 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:05,063 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:05,065 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions.
[2020-04-18 16:00:05,065 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:05,088 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:05,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 16:00:05,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552
[2020-04-18 16:00:05,088 INFO L87 Difference]: Start difference. First operand 86 states and 158 transitions. Second operand 7 states.
[2020-04-18 16:00:05,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:05,228 INFO L93 Difference]: Finished difference Result 89 states and 161 transitions.
[2020-04-18 16:00:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 161 transitions.
[2020-04-18 16:00:05,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:05,228 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1461863821]
[2020-04-18 16:00:05,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:05,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 16:00:05,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1461863821]
[2020-04-18 16:00:05,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states
[2020-04-18 16:00:05,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:05,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2020-04-18 16:00:05,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930
[2020-04-18 16:00:05,230 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 17 states.
[2020-04-18 16:00:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:06,725 INFO L93 Difference]: Finished difference Result 76261 states and 351801 transitions.
[2020-04-18 16:00:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states.
[2020-04-18 16:00:06,725 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19
[2020-04-18 16:00:06,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:06,939 INFO L225 Difference]: With dead ends: 76261
[2020-04-18 16:00:06,940 INFO L226 Difference]: Without dead ends: 76204
[2020-04-18 16:00:06,940 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2210, Unknown=0, NotChecked=0, Total=2862
[2020-04-18 16:00:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76204 states.
[2020-04-18 16:00:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76204 to 28061.
[2020-04-18 16:00:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28061 states.
[2020-04-18 16:00:11,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28061 states to 28061 states and 149307 transitions.
[2020-04-18 16:00:11,248 INFO L78 Accepts]: Start accepts. Automaton has 28061 states and 149307 transitions. Word has length 19
[2020-04-18 16:00:11,249 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:11,249 INFO L479 AbstractCegarLoop]: Abstraction has 28061 states and 149307 transitions.
[2020-04-18 16:00:11,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states.
[2020-04-18 16:00:11,249 INFO L276 IsEmpty]: Start isEmpty. Operand 28061 states and 149307 transitions.
[2020-04-18 16:00:11,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:11,249 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:11,249 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:11,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:11,651 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:11,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:11,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1064014108, now seen corresponding path program 1 times
[2020-04-18 16:00:11,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:11,653 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [753859725]
[2020-04-18 16:00:11,653 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:11,654 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 111 transitions.
[2020-04-18 16:00:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states.
[2020-04-18 16:00:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:11,655 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:11,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1067237188, now seen corresponding path program 2 times
[2020-04-18 16:00:11,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:11,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961604507]
[2020-04-18 16:00:11,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:11,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961604507]
[2020-04-18 16:00:11,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508511202]
[2020-04-18 16:00:11,679 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:11,765 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:00:11,765 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:11,766 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 16:00:11,767 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:11,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:11,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 16:00:11,805 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:11,806 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:11,810 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 45 transitions.
[2020-04-18 16:00:11,810 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:11,871 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 16:00:11,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-04-18 16:00:11,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2020-04-18 16:00:11,871 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 10 states.
[2020-04-18 16:00:11,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:11,959 INFO L93 Difference]: Finished difference Result 69 states and 118 transitions.
[2020-04-18 16:00:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 118 transitions.
[2020-04-18 16:00:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:11,959 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:11,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:11,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1064014108, now seen corresponding path program 3 times
[2020-04-18 16:00:11,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:11,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025804303]
[2020-04-18 16:00:11,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:12,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025804303]
[2020-04-18 16:00:12,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119510393]
[2020-04-18 16:00:12,004 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:12,087 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 16:00:12,087 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:12,087 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:12,088 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:12,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:12,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 16:00:12,140 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:12,141 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:12,145 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions.
[2020-04-18 16:00:12,145 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:12,191 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:12,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:12,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240
[2020-04-18 16:00:12,192 INFO L87 Difference]: Start difference. First operand 69 states and 118 transitions. Second operand 12 states.
[2020-04-18 16:00:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:12,333 INFO L93 Difference]: Finished difference Result 70 states and 118 transitions.
[2020-04-18 16:00:12,333 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 118 transitions.
[2020-04-18 16:00:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 16:00:12,333 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1699177508, now seen corresponding path program 4 times
[2020-04-18 16:00:12,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:12,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885112418]
[2020-04-18 16:00:12,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:12,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885112418]
[2020-04-18 16:00:12,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:12,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 16:00:12,376 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:12,377 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:12,380 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions.
[2020-04-18 16:00:12,380 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:12,414 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:12,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 16:00:12,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506
[2020-04-18 16:00:12,415 INFO L87 Difference]: Start difference. First operand 70 states and 118 transitions. Second operand 7 states.
[2020-04-18 16:00:12,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:12,614 INFO L93 Difference]: Finished difference Result 73 states and 121 transitions.
[2020-04-18 16:00:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 121 transitions.
[2020-04-18 16:00:12,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:12,615 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [753859725]
[2020-04-18 16:00:12,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:12,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 16:00:12,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [753859725]
[2020-04-18 16:00:12,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-04-18 16:00:12,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:12,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:12,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870
[2020-04-18 16:00:12,616 INFO L87 Difference]: Start difference. First operand 28061 states and 149307 transitions. Second operand 16 states.
[2020-04-18 16:00:13,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:13,848 INFO L93 Difference]: Finished difference Result 78028 states and 361108 transitions.
[2020-04-18 16:00:13,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states.
[2020-04-18 16:00:13,848 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19
[2020-04-18 16:00:13,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:14,074 INFO L225 Difference]: With dead ends: 78028
[2020-04-18 16:00:14,075 INFO L226 Difference]: Without dead ends: 77962
[2020-04-18 16:00:14,075 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=632, Invalid=2124, Unknown=0, NotChecked=0, Total=2756
[2020-04-18 16:00:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77962 states.
[2020-04-18 16:00:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77962 to 29094.
[2020-04-18 16:00:16,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states.
[2020-04-18 16:00:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions.
[2020-04-18 16:00:16,442 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19
[2020-04-18 16:00:16,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:16,442 INFO L479 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions.
[2020-04-18 16:00:16,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states.
[2020-04-18 16:00:16,442 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions.
[2020-04-18 16:00:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:16,443 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:16,443 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:16,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:16,844 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:16,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:16,845 INFO L82 PathProgramCache]: Analyzing trace with hash -228866966, now seen corresponding path program 1 times
[2020-04-18 16:00:16,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:16,845 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1871429265]
[2020-04-18 16:00:16,846 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:16,849 INFO L259 McrAutomatonBuilder]: Finished intersection with 160 states and 405 transitions.
[2020-04-18 16:00:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states.
[2020-04-18 16:00:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:16,850 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:16,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:16,850 INFO L82 PathProgramCache]: Analyzing trace with hash -225643886, now seen corresponding path program 2 times
[2020-04-18 16:00:16,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:16,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585129988]
[2020-04-18 16:00:16,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 16:00:16,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585129988]
[2020-04-18 16:00:16,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443100308]
[2020-04-18 16:00:16,888 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:16,974 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:00:16,974 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:16,975 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:16,975 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 16:00:17,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:17,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:00:17,024 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:17,025 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:17,030 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 79 transitions.
[2020-04-18 16:00:17,030 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:17,134 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 16:00:17,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:00:17,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182
[2020-04-18 16:00:17,134 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 14 states.
[2020-04-18 16:00:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:17,576 INFO L93 Difference]: Finished difference Result 245 states and 539 transitions.
[2020-04-18 16:00:17,577 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 539 transitions.
[2020-04-18 16:00:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:17,577 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:17,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:17,578 INFO L82 PathProgramCache]: Analyzing trace with hash -228866966, now seen corresponding path program 3 times
[2020-04-18 16:00:17,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:17,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860161533]
[2020-04-18 16:00:17,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 16:00:17,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860161533]
[2020-04-18 16:00:17,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799949454]
[2020-04-18 16:00:17,649 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:17,740 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2020-04-18 16:00:17,740 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:17,741 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:17,742 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 16:00:17,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:17,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:17,820 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:17,821 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:17,826 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions.
[2020-04-18 16:00:17,826 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:17,874 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:17,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:17,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650
[2020-04-18 16:00:17,875 INFO L87 Difference]: Start difference. First operand 245 states and 539 transitions. Second operand 16 states.
[2020-04-18 16:00:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:18,601 INFO L93 Difference]: Finished difference Result 262 states and 550 transitions.
[2020-04-18 16:00:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 550 transitions.
[2020-04-18 16:00:18,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:18,602 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:18,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1302908714, now seen corresponding path program 4 times
[2020-04-18 16:00:18,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:18,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573728688]
[2020-04-18 16:00:18,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:18,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:18,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573728688]
[2020-04-18 16:00:18,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744756811]
[2020-04-18 16:00:18,656 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:18,743 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 16:00:18,743 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:18,744 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:18,745 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:18,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:18,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:18,821 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:18,823 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:18,827 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions.
[2020-04-18 16:00:18,827 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:18,886 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:18,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:18,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=1461, Unknown=0, NotChecked=0, Total=1892
[2020-04-18 16:00:18,887 INFO L87 Difference]: Start difference. First operand 262 states and 550 transitions. Second operand 16 states.
[2020-04-18 16:00:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:19,676 INFO L93 Difference]: Finished difference Result 291 states and 584 transitions.
[2020-04-18 16:00:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 584 transitions.
[2020-04-18 16:00:19,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:19,677 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 16:00:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:19,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1145957934, now seen corresponding path program 5 times
[2020-04-18 16:00:19,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:19,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631695823]
[2020-04-18 16:00:19,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:19,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631695823]
[2020-04-18 16:00:19,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592084040]
[2020-04-18 16:00:19,716 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:19,805 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2020-04-18 16:00:19,805 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:19,806 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:19,807 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:19,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:19,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:00:19,851 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:19,852 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:19,858 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 63 transitions.
[2020-04-18 16:00:19,858 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:19,944 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 16:00:19,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:00:19,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=891, Invalid=3531, Unknown=0, NotChecked=0, Total=4422
[2020-04-18 16:00:19,944 INFO L87 Difference]: Start difference. First operand 291 states and 584 transitions. Second operand 14 states.
[2020-04-18 16:00:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:20,394 INFO L93 Difference]: Finished difference Result 336 states and 642 transitions.
[2020-04-18 16:00:20,394 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 642 transitions.
[2020-04-18 16:00:20,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:20,395 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 16:00:20,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:20,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1149181014, now seen corresponding path program 6 times
[2020-04-18 16:00:20,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:20,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143240774]
[2020-04-18 16:00:20,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:20,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143240774]
[2020-04-18 16:00:20,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356865786]
[2020-04-18 16:00:20,455 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:20,547 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2020-04-18 16:00:20,547 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:20,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:20,549 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:20,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:20,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:20,631 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:20,633 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:20,638 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions.
[2020-04-18 16:00:20,638 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:20,639 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:20,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:20,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1053, Invalid=4497, Unknown=0, NotChecked=0, Total=5550
[2020-04-18 16:00:20,640 INFO L87 Difference]: Start difference. First operand 336 states and 642 transitions. Second operand 16 states.
[2020-04-18 16:00:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:21,380 INFO L93 Difference]: Finished difference Result 339 states and 643 transitions.
[2020-04-18 16:00:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 643 transitions.
[2020-04-18 16:00:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:21,381 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 16:00:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash 315341610, now seen corresponding path program 7 times
[2020-04-18 16:00:21,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:21,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347365554]
[2020-04-18 16:00:21,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:23,341 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:23,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347365554]
[2020-04-18 16:00:23,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492961545]
[2020-04-18 16:00:23,342 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:23,434 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:23,434 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:23,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:00:23,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:23,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:23,509 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:23,510 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:23,514 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions.
[2020-04-18 16:00:23,514 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:23,549 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:23,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:23,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1464, Invalid=6368, Unknown=0, NotChecked=0, Total=7832
[2020-04-18 16:00:23,550 INFO L87 Difference]: Start difference. First operand 339 states and 643 transitions. Second operand 16 states.
[2020-04-18 16:00:24,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:24,372 INFO L93 Difference]: Finished difference Result 374 states and 680 transitions.
[2020-04-18 16:00:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 680 transitions.
[2020-04-18 16:00:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:24,373 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 16:00:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:24,373 INFO L82 PathProgramCache]: Analyzing trace with hash -822012438, now seen corresponding path program 8 times
[2020-04-18 16:00:24,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:24,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603666119]
[2020-04-18 16:00:24,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:24,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603666119]
[2020-04-18 16:00:24,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:24,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:00:24,423 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:24,424 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:24,427 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 16:00:24,427 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:24,450 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:24,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:00:24,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1993, Invalid=9349, Unknown=0, NotChecked=0, Total=11342
[2020-04-18 16:00:24,452 INFO L87 Difference]: Start difference. First operand 374 states and 680 transitions. Second operand 9 states.
[2020-04-18 16:00:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:25,143 INFO L93 Difference]: Finished difference Result 374 states and 680 transitions.
[2020-04-18 16:00:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 680 transitions.
[2020-04-18 16:00:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:25,144 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 16:00:25,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:25,144 INFO L82 PathProgramCache]: Analyzing trace with hash -848707158, now seen corresponding path program 9 times
[2020-04-18 16:00:25,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:25,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225561823]
[2020-04-18 16:00:25,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:25,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225561823]
[2020-04-18 16:00:25,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:25,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:00:25,195 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:25,196 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:25,199 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 16:00:25,199 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:25,199 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:25,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:00:25,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2490, Invalid=13766, Unknown=0, NotChecked=0, Total=16256
[2020-04-18 16:00:25,200 INFO L87 Difference]: Start difference. First operand 374 states and 680 transitions. Second operand 9 states.
[2020-04-18 16:00:25,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:25,858 INFO L93 Difference]: Finished difference Result 374 states and 680 transitions.
[2020-04-18 16:00:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 680 transitions.
[2020-04-18 16:00:25,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:25,860 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1871429265]
[2020-04-18 16:00:25,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:25,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 16:00:25,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1871429265]
[2020-04-18 16:00:25,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states
[2020-04-18 16:00:25,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2020-04-18 16:00:25,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3029, Invalid=18433, Unknown=0, NotChecked=0, Total=21462
[2020-04-18 16:00:25,862 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 29 states.
[2020-04-18 16:00:32,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:32,417 INFO L93 Difference]: Finished difference Result 152947 states and 639800 transitions.
[2020-04-18 16:00:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states.
[2020-04-18 16:00:32,418 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 21
[2020-04-18 16:00:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:32,848 INFO L225 Difference]: With dead ends: 152947
[2020-04-18 16:00:32,849 INFO L226 Difference]: Without dead ends: 152835
[2020-04-18 16:00:32,851 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30634 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=9790, Invalid=63922, Unknown=0, NotChecked=0, Total=73712
[2020-04-18 16:00:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152835 states.
[2020-04-18 16:00:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152835 to 25744.
[2020-04-18 16:00:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25744 states.
[2020-04-18 16:00:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25744 states to 25744 states and 137181 transitions.
[2020-04-18 16:00:35,571 INFO L78 Accepts]: Start accepts. Automaton has 25744 states and 137181 transitions. Word has length 21
[2020-04-18 16:00:35,571 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:35,572 INFO L479 AbstractCegarLoop]: Abstraction has 25744 states and 137181 transitions.
[2020-04-18 16:00:35,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states.
[2020-04-18 16:00:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 25744 states and 137181 transitions.
[2020-04-18 16:00:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:35,572 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:35,573 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:36,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:36,775 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:36,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1818695965, now seen corresponding path program 1 times
[2020-04-18 16:00:36,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:36,777 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [370586111]
[2020-04-18 16:00:36,778 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:36,778 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 57 transitions.
[2020-04-18 16:00:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-04-18 16:00:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:36,779 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:36,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:36,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1663994071, now seen corresponding path program 2 times
[2020-04-18 16:00:36,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:36,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404814976]
[2020-04-18 16:00:36,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:36,791 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-04-18 16:00:36,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404814976]
[2020-04-18 16:00:36,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:36,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 16:00:36,792 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:36,793 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:36,796 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 55 transitions.
[2020-04-18 16:00:36,797 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:36,801 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 16:00:36,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 16:00:36,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 16:00:36,801 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states.
[2020-04-18 16:00:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:36,804 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2020-04-18 16:00:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions.
[2020-04-18 16:00:36,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-18 16:00:36,805 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:36,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:36,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1818695965, now seen corresponding path program 3 times
[2020-04-18 16:00:36,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:36,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198112962]
[2020-04-18 16:00:36,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:00:36,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198112962]
[2020-04-18 16:00:36,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:36,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 16:00:36,838 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:36,839 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:36,842 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions.
[2020-04-18 16:00:36,842 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:36,851 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:36,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 16:00:36,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 16:00:36,852 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand 5 states.
[2020-04-18 16:00:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:36,877 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2020-04-18 16:00:36,877 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions.
[2020-04-18 16:00:36,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:36,878 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [370586111]
[2020-04-18 16:00:36,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:36,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 16:00:36,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [370586111]
[2020-04-18 16:00:36,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 16:00:36,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:36,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 16:00:36,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 16:00:36,879 INFO L87 Difference]: Start difference. First operand 25744 states and 137181 transitions. Second operand 5 states.
[2020-04-18 16:00:37,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:37,413 INFO L93 Difference]: Finished difference Result 46463 states and 236107 transitions.
[2020-04-18 16:00:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 16:00:37,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21
[2020-04-18 16:00:37,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:37,551 INFO L225 Difference]: With dead ends: 46463
[2020-04-18 16:00:37,551 INFO L226 Difference]: Without dead ends: 46417
[2020-04-18 16:00:37,552 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 16:00:38,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46417 states.
[2020-04-18 16:00:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46417 to 31960.
[2020-04-18 16:00:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31960 states.
[2020-04-18 16:00:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31960 states to 31960 states and 171209 transitions.
[2020-04-18 16:00:38,966 INFO L78 Accepts]: Start accepts. Automaton has 31960 states and 171209 transitions. Word has length 21
[2020-04-18 16:00:38,966 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:38,966 INFO L479 AbstractCegarLoop]: Abstraction has 31960 states and 171209 transitions.
[2020-04-18 16:00:38,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 16:00:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 31960 states and 171209 transitions.
[2020-04-18 16:00:38,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:38,967 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:38,968 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:38,968 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:38,968 INFO L82 PathProgramCache]: Analyzing trace with hash 605532395, now seen corresponding path program 1 times
[2020-04-18 16:00:38,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:38,968 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1347385666]
[2020-04-18 16:00:38,968 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:38,970 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 203 transitions.
[2020-04-18 16:00:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states.
[2020-04-18 16:00:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:38,971 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:38,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1417809655, now seen corresponding path program 2 times
[2020-04-18 16:00:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:38,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850498825]
[2020-04-18 16:00:38,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:38,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850498825]
[2020-04-18 16:00:38,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613050798]
[2020-04-18 16:00:38,999 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:39,089 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:00:39,089 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:39,090 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 16:00:39,091 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:39,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:39,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 16:00:39,134 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:39,135 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:39,144 INFO L259 McrAutomatonBuilder]: Finished intersection with 61 states and 97 transitions.
[2020-04-18 16:00:39,144 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:39,181 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 16:00:39,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 16:00:39,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 16:00:39,182 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 8 states.
[2020-04-18 16:00:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:39,248 INFO L93 Difference]: Finished difference Result 109 states and 210 transitions.
[2020-04-18 16:00:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 210 transitions.
[2020-04-18 16:00:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:39,249 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:39,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:39,249 INFO L82 PathProgramCache]: Analyzing trace with hash 605532395, now seen corresponding path program 3 times
[2020-04-18 16:00:39,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:39,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962342274]
[2020-04-18 16:00:39,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:00:39,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962342274]
[2020-04-18 16:00:39,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950085766]
[2020-04-18 16:00:39,289 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:39,380 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2020-04-18 16:00:39,380 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:39,386 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:39,387 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:00:39,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:39,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 16:00:39,438 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:39,439 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:39,445 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 71 transitions.
[2020-04-18 16:00:39,445 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:39,482 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:39,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:39,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2020-04-18 16:00:39,483 INFO L87 Difference]: Start difference. First operand 109 states and 210 transitions. Second operand 12 states.
[2020-04-18 16:00:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:39,617 INFO L93 Difference]: Finished difference Result 110 states and 210 transitions.
[2020-04-18 16:00:39,617 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 210 transitions.
[2020-04-18 16:00:39,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:39,618 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash -284866837, now seen corresponding path program 4 times
[2020-04-18 16:00:39,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:39,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239632328]
[2020-04-18 16:00:39,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:00:39,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239632328]
[2020-04-18 16:00:39,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:39,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 16:00:39,659 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:39,660 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:39,663 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions.
[2020-04-18 16:00:39,663 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:39,682 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:39,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 16:00:39,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2020-04-18 16:00:39,683 INFO L87 Difference]: Start difference. First operand 110 states and 210 transitions. Second operand 7 states.
[2020-04-18 16:00:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:39,809 INFO L93 Difference]: Finished difference Result 113 states and 213 transitions.
[2020-04-18 16:00:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 213 transitions.
[2020-04-18 16:00:39,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:39,810 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1347385666]
[2020-04-18 16:00:39,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:39,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 16:00:39,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1347385666]
[2020-04-18 16:00:39,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 16:00:39,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:39,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:00:39,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756
[2020-04-18 16:00:39,811 INFO L87 Difference]: Start difference. First operand 31960 states and 171209 transitions. Second operand 14 states.
[2020-04-18 16:00:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:40,733 INFO L93 Difference]: Finished difference Result 85812 states and 403107 transitions.
[2020-04-18 16:00:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 16:00:40,733 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23
[2020-04-18 16:00:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:40,990 INFO L225 Difference]: With dead ends: 85812
[2020-04-18 16:00:40,990 INFO L226 Difference]: Without dead ends: 85721
[2020-04-18 16:00:40,990 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190
[2020-04-18 16:00:42,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85721 states.
[2020-04-18 16:00:43,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85721 to 32410.
[2020-04-18 16:00:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32410 states.
[2020-04-18 16:00:43,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32410 states to 32410 states and 173487 transitions.
[2020-04-18 16:00:43,502 INFO L78 Accepts]: Start accepts. Automaton has 32410 states and 173487 transitions. Word has length 23
[2020-04-18 16:00:43,502 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:43,502 INFO L479 AbstractCegarLoop]: Abstraction has 32410 states and 173487 transitions.
[2020-04-18 16:00:43,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 16:00:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 32410 states and 173487 transitions.
[2020-04-18 16:00:43,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:43,504 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:43,504 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:43,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:43,905 INFO L427 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:43,906 INFO L82 PathProgramCache]: Analyzing trace with hash 768040394, now seen corresponding path program 1 times
[2020-04-18 16:00:43,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:43,906 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1512800946]
[2020-04-18 16:00:43,907 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:43,909 INFO L259 McrAutomatonBuilder]: Finished intersection with 84 states and 163 transitions.
[2020-04-18 16:00:43,909 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states.
[2020-04-18 16:00:43,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:43,910 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:43,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:43,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1580317654, now seen corresponding path program 2 times
[2020-04-18 16:00:43,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:43,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090547546]
[2020-04-18 16:00:43,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:00:43,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090547546]
[2020-04-18 16:00:43,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058361034]
[2020-04-18 16:00:43,936 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:44,027 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:00:44,027 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:44,028 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 16:00:44,029 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:00:44,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:44,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 16:00:44,055 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:44,056 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:44,062 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 73 transitions.
[2020-04-18 16:00:44,062 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:44,103 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:44,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 16:00:44,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 16:00:44,104 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 8 states.
[2020-04-18 16:00:44,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:44,169 INFO L93 Difference]: Finished difference Result 93 states and 170 transitions.
[2020-04-18 16:00:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 170 transitions.
[2020-04-18 16:00:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:44,169 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:44,170 INFO L82 PathProgramCache]: Analyzing trace with hash 768040394, now seen corresponding path program 3 times
[2020-04-18 16:00:44,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:44,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508378921]
[2020-04-18 16:00:44,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:00:44,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508378921]
[2020-04-18 16:00:44,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641057041]
[2020-04-18 16:00:44,208 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:44,297 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 16:00:44,297 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:44,307 INFO L264 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:44,308 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:00:44,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:44,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 16:00:44,357 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:44,357 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:44,362 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 55 transitions.
[2020-04-18 16:00:44,362 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:44,393 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:44,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:44,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2020-04-18 16:00:44,393 INFO L87 Difference]: Start difference. First operand 93 states and 170 transitions. Second operand 12 states.
[2020-04-18 16:00:44,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:44,534 INFO L93 Difference]: Finished difference Result 94 states and 170 transitions.
[2020-04-18 16:00:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 170 transitions.
[2020-04-18 16:00:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:44,535 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:44,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:44,536 INFO L82 PathProgramCache]: Analyzing trace with hash -284839030, now seen corresponding path program 4 times
[2020-04-18 16:00:44,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:44,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510890316]
[2020-04-18 16:00:44,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:00:44,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510890316]
[2020-04-18 16:00:44,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:44,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 16:00:44,591 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:44,592 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:44,596 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions.
[2020-04-18 16:00:44,596 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:44,616 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:44,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 16:00:44,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2020-04-18 16:00:44,617 INFO L87 Difference]: Start difference. First operand 94 states and 170 transitions. Second operand 7 states.
[2020-04-18 16:00:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:44,740 INFO L93 Difference]: Finished difference Result 97 states and 173 transitions.
[2020-04-18 16:00:44,740 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 173 transitions.
[2020-04-18 16:00:44,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:44,741 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1512800946]
[2020-04-18 16:00:44,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:44,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 16:00:44,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1512800946]
[2020-04-18 16:00:44,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 16:00:44,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:44,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:00:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756
[2020-04-18 16:00:44,743 INFO L87 Difference]: Start difference. First operand 32410 states and 173487 transitions. Second operand 14 states.
[2020-04-18 16:00:45,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:45,646 INFO L93 Difference]: Finished difference Result 89575 states and 421695 transitions.
[2020-04-18 16:00:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 16:00:45,647 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23
[2020-04-18 16:00:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:45,924 INFO L225 Difference]: With dead ends: 89575
[2020-04-18 16:00:45,924 INFO L226 Difference]: Without dead ends: 89478
[2020-04-18 16:00:45,924 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190
[2020-04-18 16:00:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89478 states.
[2020-04-18 16:00:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89478 to 34512.
[2020-04-18 16:00:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34512 states.
[2020-04-18 16:00:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34512 states to 34512 states and 184682 transitions.
[2020-04-18 16:00:48,501 INFO L78 Accepts]: Start accepts. Automaton has 34512 states and 184682 transitions. Word has length 23
[2020-04-18 16:00:48,501 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:48,501 INFO L479 AbstractCegarLoop]: Abstraction has 34512 states and 184682 transitions.
[2020-04-18 16:00:48,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 16:00:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34512 states and 184682 transitions.
[2020-04-18 16:00:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:48,502 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:48,503 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:48,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:48,904 INFO L427 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:48,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1041867770, now seen corresponding path program 1 times
[2020-04-18 16:00:48,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:48,905 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [321490056]
[2020-04-18 16:00:48,906 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:48,908 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 123 transitions.
[2020-04-18 16:00:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states.
[2020-04-18 16:00:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:48,909 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:48,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:48,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1304768172, now seen corresponding path program 2 times
[2020-04-18 16:00:48,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:48,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341328793]
[2020-04-18 16:00:48,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-04-18 16:00:48,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341328793]
[2020-04-18 16:00:48,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:48,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 16:00:48,923 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:48,925 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:48,931 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 85 transitions.
[2020-04-18 16:00:48,932 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:48,936 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 16:00:48,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 16:00:48,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 16:00:48,936 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states.
[2020-04-18 16:00:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:48,944 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions.
[2020-04-18 16:00:48,945 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 131 transitions.
[2020-04-18 16:00:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:48,945 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:48,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:48,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1041867770, now seen corresponding path program 3 times
[2020-04-18 16:00:48,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:48,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125920523]
[2020-04-18 16:00:48,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:48,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125920523]
[2020-04-18 16:00:48,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250521545]
[2020-04-18 16:00:48,988 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:49,079 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-04-18 16:00:49,079 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:49,080 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:49,081 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:00:49,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:49,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2020-04-18 16:00:49,132 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:49,133 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:49,137 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 39 transitions.
[2020-04-18 16:00:49,137 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:49,201 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:49,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:49,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132
[2020-04-18 16:00:49,202 INFO L87 Difference]: Start difference. First operand 77 states and 131 transitions. Second operand 12 states.
[2020-04-18 16:00:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:49,355 INFO L93 Difference]: Finished difference Result 81 states and 135 transitions.
[2020-04-18 16:00:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 135 transitions.
[2020-04-18 16:00:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-04-18 16:00:49,355 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:49,356 INFO L82 PathProgramCache]: Analyzing trace with hash -284850438, now seen corresponding path program 4 times
[2020-04-18 16:00:49,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:49,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054989063]
[2020-04-18 16:00:49,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:00:49,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054989063]
[2020-04-18 16:00:49,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:00:49,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-18 16:00:49,421 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:49,422 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:49,425 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions.
[2020-04-18 16:00:49,425 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:49,442 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:49,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 16:00:49,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2020-04-18 16:00:49,443 INFO L87 Difference]: Start difference. First operand 81 states and 135 transitions. Second operand 7 states.
[2020-04-18 16:00:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:49,571 INFO L93 Difference]: Finished difference Result 84 states and 138 transitions.
[2020-04-18 16:00:49,571 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 138 transitions.
[2020-04-18 16:00:49,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:00:49,572 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [321490056]
[2020-04-18 16:00:49,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:00:49,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-04-18 16:00:49,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [321490056]
[2020-04-18 16:00:49,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-04-18 16:00:49,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:00:49,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:00:49,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756
[2020-04-18 16:00:49,574 INFO L87 Difference]: Start difference. First operand 34512 states and 184682 transitions. Second operand 14 states.
[2020-04-18 16:00:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:51,107 INFO L93 Difference]: Finished difference Result 92780 states and 438377 transitions.
[2020-04-18 16:00:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-04-18 16:00:51,108 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23
[2020-04-18 16:00:51,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:00:51,401 INFO L225 Difference]: With dead ends: 92780
[2020-04-18 16:00:51,401 INFO L226 Difference]: Without dead ends: 92670
[2020-04-18 16:00:51,402 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190
[2020-04-18 16:00:52,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92670 states.
[2020-04-18 16:00:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92670 to 37062.
[2020-04-18 16:00:53,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37062 states.
[2020-04-18 16:00:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37062 states to 37062 states and 198528 transitions.
[2020-04-18 16:00:53,572 INFO L78 Accepts]: Start accepts. Automaton has 37062 states and 198528 transitions. Word has length 23
[2020-04-18 16:00:53,572 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:00:53,573 INFO L479 AbstractCegarLoop]: Abstraction has 37062 states and 198528 transitions.
[2020-04-18 16:00:53,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-04-18 16:00:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 37062 states and 198528 transitions.
[2020-04-18 16:00:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:00:53,575 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:00:53,575 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:00:53,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:53,776 INFO L427 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:00:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:53,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1146013160, now seen corresponding path program 1 times
[2020-04-18 16:00:53,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:00:53,777 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [127383297]
[2020-04-18 16:00:53,778 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:53,782 INFO L259 McrAutomatonBuilder]: Finished intersection with 232 states and 609 transitions.
[2020-04-18 16:00:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states.
[2020-04-18 16:00:53,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:00:53,784 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:00:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:53,784 INFO L82 PathProgramCache]: Analyzing trace with hash -333735900, now seen corresponding path program 2 times
[2020-04-18 16:00:53,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:53,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867008005]
[2020-04-18 16:00:53,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-04-18 16:00:53,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867008005]
[2020-04-18 16:00:53,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332171927]
[2020-04-18 16:00:53,824 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:53,911 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:00:53,911 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:53,912 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:53,912 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-04-18 16:00:53,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:53,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:00:53,965 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:53,967 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:53,977 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 123 transitions.
[2020-04-18 16:00:53,977 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:54,056 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:54,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:54,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132
[2020-04-18 16:00:54,057 INFO L87 Difference]: Start difference. First operand 232 states. Second operand 12 states.
[2020-04-18 16:00:54,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:54,404 INFO L93 Difference]: Finished difference Result 333 states and 775 transitions.
[2020-04-18 16:00:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 775 transitions.
[2020-04-18 16:00:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:00:54,405 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:00:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:54,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1146013160, now seen corresponding path program 3 times
[2020-04-18 16:00:54,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:54,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40035020]
[2020-04-18 16:00:54,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:54,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40035020]
[2020-04-18 16:00:54,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334076571]
[2020-04-18 16:00:54,454 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:54,546 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 16:00:54,547 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:54,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:54,549 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:00:54,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:54,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:54,629 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:54,630 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:54,639 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 105 transitions.
[2020-04-18 16:00:54,639 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:54,686 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:54,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:54,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552
[2020-04-18 16:00:54,687 INFO L87 Difference]: Start difference. First operand 333 states and 775 transitions. Second operand 16 states.
[2020-04-18 16:00:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:55,394 INFO L93 Difference]: Finished difference Result 350 states and 786 transitions.
[2020-04-18 16:00:55,394 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 786 transitions.
[2020-04-18 16:00:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:00:55,395 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:00:55,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2096074712, now seen corresponding path program 4 times
[2020-04-18 16:00:55,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:55,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258861674]
[2020-04-18 16:00:55,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:00:55,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258861674]
[2020-04-18 16:00:55,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867776930]
[2020-04-18 16:00:55,466 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:55,557 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 16:00:55,557 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:55,558 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:55,559 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:00:57,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:57,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:57,722 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:57,723 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:57,731 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions.
[2020-04-18 16:00:57,731 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:57,784 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:57,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:57,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=1296, Unknown=0, NotChecked=0, Total=1722
[2020-04-18 16:00:57,785 INFO L87 Difference]: Start difference. First operand 350 states and 786 transitions. Second operand 16 states.
[2020-04-18 16:00:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:58,573 INFO L93 Difference]: Finished difference Result 379 states and 820 transitions.
[2020-04-18 16:00:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 820 transitions.
[2020-04-18 16:00:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:00:58,574 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 16:00:58,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:58,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1394546532, now seen corresponding path program 5 times
[2020-04-18 16:00:58,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:58,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079477769]
[2020-04-18 16:00:58,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:00:58,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079477769]
[2020-04-18 16:00:58,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892870805]
[2020-04-18 16:00:58,617 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:58,703 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2020-04-18 16:00:58,703 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:58,704 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:00:58,704 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:00:58,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:58,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:00:58,753 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:58,755 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:58,765 INFO L259 McrAutomatonBuilder]: Finished intersection with 67 states and 107 transitions.
[2020-04-18 16:00:58,765 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:58,829 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:58,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:00:58,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=886, Invalid=3274, Unknown=0, NotChecked=0, Total=4160
[2020-04-18 16:00:58,830 INFO L87 Difference]: Start difference. First operand 379 states and 820 transitions. Second operand 12 states.
[2020-04-18 16:00:59,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:00:59,202 INFO L93 Difference]: Finished difference Result 436 states and 902 transitions.
[2020-04-18 16:00:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 902 transitions.
[2020-04-18 16:00:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:00:59,203 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 16:00:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:00:59,204 INFO L82 PathProgramCache]: Analyzing trace with hash 582269272, now seen corresponding path program 6 times
[2020-04-18 16:00:59,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:00:59,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841259292]
[2020-04-18 16:00:59,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:00:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:00:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:00:59,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841259292]
[2020-04-18 16:00:59,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800358626]
[2020-04-18 16:00:59,285 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:00:59,374 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2020-04-18 16:00:59,374 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:00:59,375 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:00:59,376 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:00:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:00:59,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:00:59,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:00:59,462 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:00:59,464 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:00:59,473 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions.
[2020-04-18 16:00:59,473 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:00:59,474 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:00:59,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:00:59,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1048, Invalid=4208, Unknown=0, NotChecked=0, Total=5256
[2020-04-18 16:00:59,475 INFO L87 Difference]: Start difference. First operand 436 states and 902 transitions. Second operand 16 states.
[2020-04-18 16:01:00,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:00,194 INFO L93 Difference]: Finished difference Result 439 states and 903 transitions.
[2020-04-18 16:01:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 903 transitions.
[2020-04-18 16:01:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:00,195 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 16:01:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash -647556008, now seen corresponding path program 7 times
[2020-04-18 16:01:00,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:00,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482559286]
[2020-04-18 16:01:00,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:01:00,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482559286]
[2020-04-18 16:01:00,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967253157]
[2020-04-18 16:01:00,245 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:00,334 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:00,334 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:01:00,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:00,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:00,410 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:00,411 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:00,418 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 16:01:00,418 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:00,450 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:00,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:00,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1459, Invalid=6023, Unknown=0, NotChecked=0, Total=7482
[2020-04-18 16:01:00,451 INFO L87 Difference]: Start difference. First operand 439 states and 903 transitions. Second operand 16 states.
[2020-04-18 16:01:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:01,263 INFO L93 Difference]: Finished difference Result 474 states and 940 transitions.
[2020-04-18 16:01:01,263 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 940 transitions.
[2020-04-18 16:01:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:01,264 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 16:01:01,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:01,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1147599384, now seen corresponding path program 8 times
[2020-04-18 16:01:01,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:01,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662540180]
[2020-04-18 16:01:01,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:01:01,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662540180]
[2020-04-18 16:01:01,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:01,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:01:01,336 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:01,337 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:01,342 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:01,342 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:01,366 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:01,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:01:01,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1988, Invalid=8932, Unknown=0, NotChecked=0, Total=10920
[2020-04-18 16:01:01,367 INFO L87 Difference]: Start difference. First operand 474 states and 940 transitions. Second operand 9 states.
[2020-04-18 16:01:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:02,010 INFO L93 Difference]: Finished difference Result 474 states and 940 transitions.
[2020-04-18 16:01:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 940 transitions.
[2020-04-18 16:01:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:02,011 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 16:01:02,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:02,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1120904664, now seen corresponding path program 9 times
[2020-04-18 16:01:02,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:02,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120223614]
[2020-04-18 16:01:02,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:02,062 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:01:02,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120223614]
[2020-04-18 16:01:02,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:02,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:01:02,064 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:02,065 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:02,069 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:02,069 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:02,070 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:02,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:01:02,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=13265, Unknown=0, NotChecked=0, Total=15750
[2020-04-18 16:01:02,071 INFO L87 Difference]: Start difference. First operand 474 states and 940 transitions. Second operand 9 states.
[2020-04-18 16:01:02,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:02,698 INFO L93 Difference]: Finished difference Result 474 states and 940 transitions.
[2020-04-18 16:01:02,698 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 940 transitions.
[2020-04-18 16:01:02,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:01:02,700 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [127383297]
[2020-04-18 16:01:02,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:01:02,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 16:01:02,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [127383297]
[2020-04-18 16:01:02,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-04-18 16:01:02,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:01:02,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-04-18 16:01:02,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3024, Invalid=17856, Unknown=0, NotChecked=0, Total=20880
[2020-04-18 16:01:02,703 INFO L87 Difference]: Start difference. First operand 37062 states and 198528 transitions. Second operand 27 states.
[2020-04-18 16:01:06,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:06,297 INFO L93 Difference]: Finished difference Result 181501 states and 778700 transitions.
[2020-04-18 16:01:06,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states.
[2020-04-18 16:01:06,298 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 25
[2020-04-18 16:01:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:01:06,811 INFO L225 Difference]: With dead ends: 181501
[2020-04-18 16:01:06,811 INFO L226 Difference]: Without dead ends: 181305
[2020-04-18 16:01:06,813 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15437 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5572, Invalid=31870, Unknown=0, NotChecked=0, Total=37442
[2020-04-18 16:01:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181305 states.
[2020-04-18 16:01:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181305 to 33859.
[2020-04-18 16:01:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33859 states.
[2020-04-18 16:01:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33859 states to 33859 states and 181162 transitions.
[2020-04-18 16:01:13,264 INFO L78 Accepts]: Start accepts. Automaton has 33859 states and 181162 transitions. Word has length 25
[2020-04-18 16:01:13,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:01:13,264 INFO L479 AbstractCegarLoop]: Abstraction has 33859 states and 181162 transitions.
[2020-04-18 16:01:13,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states.
[2020-04-18 16:01:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 33859 states and 181162 transitions.
[2020-04-18 16:01:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:13,266 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:01:13,267 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:01:14,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:14,469 INFO L427 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:01:14,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:14,470 INFO L82 PathProgramCache]: Analyzing trace with hash -872185784, now seen corresponding path program 1 times
[2020-04-18 16:01:14,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:01:14,471 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1051107744]
[2020-04-18 16:01:14,471 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:14,474 INFO L259 McrAutomatonBuilder]: Finished intersection with 184 states and 457 transitions.
[2020-04-18 16:01:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states.
[2020-04-18 16:01:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:14,476 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:01:14,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:14,476 INFO L82 PathProgramCache]: Analyzing trace with hash -609285382, now seen corresponding path program 2 times
[2020-04-18 16:01:14,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:14,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775377637]
[2020-04-18 16:01:14,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:01:14,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775377637]
[2020-04-18 16:01:14,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503862913]
[2020-04-18 16:01:14,500 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:14,589 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:01:14,590 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:14,590 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 16:01:14,591 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:01:14,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:14,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 16:01:14,620 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:14,621 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:14,632 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 127 transitions.
[2020-04-18 16:01:14,632 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:14,674 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 16:01:14,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 16:01:14,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 16:01:14,675 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 8 states.
[2020-04-18 16:01:14,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:14,783 INFO L93 Difference]: Finished difference Result 265 states and 592 transitions.
[2020-04-18 16:01:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 592 transitions.
[2020-04-18 16:01:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:14,784 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:01:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:14,784 INFO L82 PathProgramCache]: Analyzing trace with hash -872184344, now seen corresponding path program 3 times
[2020-04-18 16:01:14,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:14,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666595501]
[2020-04-18 16:01:14,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:01:14,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666595501]
[2020-04-18 16:01:14,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075984560]
[2020-04-18 16:01:14,833 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:14,922 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2020-04-18 16:01:14,923 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:14,923 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:01:14,924 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:01:14,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:14,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:01:14,979 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:14,980 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:14,988 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 99 transitions.
[2020-04-18 16:01:14,989 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:15,053 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 16:01:15,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:01:15,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240
[2020-04-18 16:01:15,054 INFO L87 Difference]: Start difference. First operand 265 states and 592 transitions. Second operand 14 states.
[2020-04-18 16:01:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:15,472 INFO L93 Difference]: Finished difference Result 311 states and 648 transitions.
[2020-04-18 16:01:15,472 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 648 transitions.
[2020-04-18 16:01:15,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:15,473 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:01:15,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:15,473 INFO L82 PathProgramCache]: Analyzing trace with hash -872185784, now seen corresponding path program 4 times
[2020-04-18 16:01:15,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:15,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608965949]
[2020-04-18 16:01:15,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:01:15,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608965949]
[2020-04-18 16:01:15,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339230905]
[2020-04-18 16:01:15,524 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:15,614 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 16:01:15,614 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:15,614 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:15,615 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-04-18 16:01:15,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:15,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:15,704 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:15,705 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:15,714 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions.
[2020-04-18 16:01:15,714 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:15,773 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:15,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:15,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650
[2020-04-18 16:01:15,774 INFO L87 Difference]: Start difference. First operand 311 states and 648 transitions. Second operand 16 states.
[2020-04-18 16:01:16,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:16,501 INFO L93 Difference]: Finished difference Result 328 states and 659 transitions.
[2020-04-18 16:01:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 659 transitions.
[2020-04-18 16:01:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:16,502 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 16:01:16,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:16,503 INFO L82 PathProgramCache]: Analyzing trace with hash 2096063304, now seen corresponding path program 5 times
[2020-04-18 16:01:16,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:16,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659225778]
[2020-04-18 16:01:16,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:01:16,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659225778]
[2020-04-18 16:01:16,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241659199]
[2020-04-18 16:01:16,551 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:16,643 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2020-04-18 16:01:16,643 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:16,644 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:16,644 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:01:16,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:16,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:16,725 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:16,726 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:16,735 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions.
[2020-04-18 16:01:16,735 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:16,799 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:16,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:16,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=1461, Unknown=0, NotChecked=0, Total=1892
[2020-04-18 16:01:16,800 INFO L87 Difference]: Start difference. First operand 328 states and 659 transitions. Second operand 16 states.
[2020-04-18 16:01:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:17,630 INFO L93 Difference]: Finished difference Result 357 states and 693 transitions.
[2020-04-18 16:01:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 693 transitions.
[2020-04-18 16:01:17,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:17,631 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 16:01:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:17,632 INFO L82 PathProgramCache]: Analyzing trace with hash -989382552, now seen corresponding path program 6 times
[2020-04-18 16:01:17,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:17,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277240895]
[2020-04-18 16:01:17,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:17,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277240895]
[2020-04-18 16:01:17,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218936673]
[2020-04-18 16:01:17,666 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:17,753 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2020-04-18 16:01:17,753 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:17,753 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:01:17,754 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:17,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:17,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:01:17,803 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:17,804 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:17,811 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 67 transitions.
[2020-04-18 16:01:17,811 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:17,879 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 16:01:17,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:01:17,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=891, Invalid=3531, Unknown=0, NotChecked=0, Total=4422
[2020-04-18 16:01:17,880 INFO L87 Difference]: Start difference. First operand 357 states and 693 transitions. Second operand 14 states.
[2020-04-18 16:01:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:18,326 INFO L93 Difference]: Finished difference Result 402 states and 751 transitions.
[2020-04-18 16:01:18,327 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 751 transitions.
[2020-04-18 16:01:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:18,327 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 16:01:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:18,328 INFO L82 PathProgramCache]: Analyzing trace with hash -989383992, now seen corresponding path program 7 times
[2020-04-18 16:01:18,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:18,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879010629]
[2020-04-18 16:01:18,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:18,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879010629]
[2020-04-18 16:01:18,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883529498]
[2020-04-18 16:01:18,378 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:18,469 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:18,470 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:18,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:18,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:18,580 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:18,581 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:18,590 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 16:01:18,590 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:18,591 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:18,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:18,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1053, Invalid=4497, Unknown=0, NotChecked=0, Total=5550
[2020-04-18 16:01:18,592 INFO L87 Difference]: Start difference. First operand 402 states and 751 transitions. Second operand 16 states.
[2020-04-18 16:01:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:19,336 INFO L93 Difference]: Finished difference Result 405 states and 752 transitions.
[2020-04-18 16:01:19,337 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 752 transitions.
[2020-04-18 16:01:19,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:19,337 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 16:01:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:19,338 INFO L82 PathProgramCache]: Analyzing trace with hash 507547272, now seen corresponding path program 8 times
[2020-04-18 16:01:19,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:19,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676910551]
[2020-04-18 16:01:19,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:19,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676910551]
[2020-04-18 16:01:19,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811052382]
[2020-04-18 16:01:19,389 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:19,479 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:01:19,480 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:19,484 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:19,485 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:19,575 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:19,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:19,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:19,576 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:19,577 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:19,583 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 41 transitions.
[2020-04-18 16:01:19,583 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:19,955 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:19,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:19,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1464, Invalid=6368, Unknown=0, NotChecked=0, Total=7832
[2020-04-18 16:01:19,956 INFO L87 Difference]: Start difference. First operand 405 states and 752 transitions. Second operand 16 states.
[2020-04-18 16:01:21,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:21,102 INFO L93 Difference]: Finished difference Result 440 states and 789 transitions.
[2020-04-18 16:01:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 789 transitions.
[2020-04-18 16:01:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:21,104 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 16:01:21,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:21,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1120893256, now seen corresponding path program 9 times
[2020-04-18 16:01:21,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:21,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149915265]
[2020-04-18 16:01:21,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:01:21,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149915265]
[2020-04-18 16:01:21,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:21,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:01:21,187 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:21,188 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:21,194 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:21,194 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:21,227 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:21,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:01:21,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1993, Invalid=9349, Unknown=0, NotChecked=0, Total=11342
[2020-04-18 16:01:21,229 INFO L87 Difference]: Start difference. First operand 440 states and 789 transitions. Second operand 9 states.
[2020-04-18 16:01:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:21,925 INFO L93 Difference]: Finished difference Result 440 states and 789 transitions.
[2020-04-18 16:01:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 789 transitions.
[2020-04-18 16:01:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:21,926 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 16:01:21,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:21,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1136636296, now seen corresponding path program 10 times
[2020-04-18 16:01:21,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:21,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72355879]
[2020-04-18 16:01:21,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:21,975 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:01:21,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72355879]
[2020-04-18 16:01:21,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:21,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:01:21,976 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:21,977 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:21,982 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:21,982 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:21,982 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:21,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:01:21,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2490, Invalid=13766, Unknown=0, NotChecked=0, Total=16256
[2020-04-18 16:01:21,983 INFO L87 Difference]: Start difference. First operand 440 states and 789 transitions. Second operand 9 states.
[2020-04-18 16:01:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:22,650 INFO L93 Difference]: Finished difference Result 440 states and 789 transitions.
[2020-04-18 16:01:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 789 transitions.
[2020-04-18 16:01:22,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:01:22,652 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1051107744]
[2020-04-18 16:01:22,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:01:22,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 16:01:22,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1051107744]
[2020-04-18 16:01:22,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states
[2020-04-18 16:01:22,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:01:22,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2020-04-18 16:01:22,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3029, Invalid=18433, Unknown=0, NotChecked=0, Total=21462
[2020-04-18 16:01:22,654 INFO L87 Difference]: Start difference. First operand 33859 states and 181162 transitions. Second operand 29 states.
[2020-04-18 16:01:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:31,160 INFO L93 Difference]: Finished difference Result 176489 states and 756180 transitions.
[2020-04-18 16:01:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states.
[2020-04-18 16:01:31,161 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25
[2020-04-18 16:01:31,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:01:31,643 INFO L225 Difference]: With dead ends: 176489
[2020-04-18 16:01:31,643 INFO L226 Difference]: Without dead ends: 176286
[2020-04-18 16:01:31,645 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30455 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=9790, Invalid=63922, Unknown=0, NotChecked=0, Total=73712
[2020-04-18 16:01:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176286 states.
[2020-04-18 16:01:34,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176286 to 30886.
[2020-04-18 16:01:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30886 states.
[2020-04-18 16:01:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30886 states to 30886 states and 165408 transitions.
[2020-04-18 16:01:35,077 INFO L78 Accepts]: Start accepts. Automaton has 30886 states and 165408 transitions. Word has length 25
[2020-04-18 16:01:35,078 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:01:35,078 INFO L479 AbstractCegarLoop]: Abstraction has 30886 states and 165408 transitions.
[2020-04-18 16:01:35,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states.
[2020-04-18 16:01:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 30886 states and 165408 transitions.
[2020-04-18 16:01:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:35,080 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:01:35,080 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:01:36,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:36,491 INFO L427 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:01:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash 679178599, now seen corresponding path program 1 times
[2020-04-18 16:01:36,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:01:36,493 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [861276059]
[2020-04-18 16:01:36,493 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:36,496 INFO L259 McrAutomatonBuilder]: Finished intersection with 168 states and 417 transitions.
[2020-04-18 16:01:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states.
[2020-04-18 16:01:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:36,497 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:01:36,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:36,497 INFO L82 PathProgramCache]: Analyzing trace with hash 942079001, now seen corresponding path program 2 times
[2020-04-18 16:01:36,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:36,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783002581]
[2020-04-18 16:01:36,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:01:36,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783002581]
[2020-04-18 16:01:36,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334142391]
[2020-04-18 16:01:36,532 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:36,621 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:01:36,622 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:36,622 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-04-18 16:01:36,623 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:36,650 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-04-18 16:01:36,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:36,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2020-04-18 16:01:36,651 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:36,652 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:36,659 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 103 transitions.
[2020-04-18 16:01:36,660 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:36,699 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:36,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-04-18 16:01:36,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-04-18 16:01:36,699 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 8 states.
[2020-04-18 16:01:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:36,811 INFO L93 Difference]: Finished difference Result 249 states and 552 transitions.
[2020-04-18 16:01:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 552 transitions.
[2020-04-18 16:01:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:36,812 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:01:36,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:36,812 INFO L82 PathProgramCache]: Analyzing trace with hash 679180039, now seen corresponding path program 3 times
[2020-04-18 16:01:36,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:36,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201530394]
[2020-04-18 16:01:36,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:01:36,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201530394]
[2020-04-18 16:01:36,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405427760]
[2020-04-18 16:01:36,855 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:36,949 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 16:01:36,949 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:36,950 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:01:36,951 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:01:37,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:37,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:01:37,005 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:37,006 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:37,013 INFO L259 McrAutomatonBuilder]: Finished intersection with 55 states and 83 transitions.
[2020-04-18 16:01:37,014 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:37,061 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 16:01:37,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:01:37,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240
[2020-04-18 16:01:37,061 INFO L87 Difference]: Start difference. First operand 249 states and 552 transitions. Second operand 14 states.
[2020-04-18 16:01:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:37,480 INFO L93 Difference]: Finished difference Result 295 states and 608 transitions.
[2020-04-18 16:01:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 608 transitions.
[2020-04-18 16:01:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:37,482 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 16:01:37,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:37,482 INFO L82 PathProgramCache]: Analyzing trace with hash 679178599, now seen corresponding path program 4 times
[2020-04-18 16:01:37,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:37,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843088571]
[2020-04-18 16:01:37,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:01:37,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843088571]
[2020-04-18 16:01:37,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733954341]
[2020-04-18 16:01:37,568 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:37,661 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2020-04-18 16:01:37,662 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:37,663 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:37,664 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-04-18 16:01:37,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:37,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:37,742 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:37,743 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:37,750 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions.
[2020-04-18 16:01:37,750 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:37,800 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:37,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:37,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650
[2020-04-18 16:01:37,801 INFO L87 Difference]: Start difference. First operand 295 states and 608 transitions. Second operand 16 states.
[2020-04-18 16:01:38,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:38,517 INFO L93 Difference]: Finished difference Result 312 states and 619 transitions.
[2020-04-18 16:01:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 619 transitions.
[2020-04-18 16:01:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:38,518 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 16:01:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash -647539609, now seen corresponding path program 5 times
[2020-04-18 16:01:38,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:38,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812654118]
[2020-04-18 16:01:38,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:01:38,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812654118]
[2020-04-18 16:01:38,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432258070]
[2020-04-18 16:01:38,570 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:38,661 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2020-04-18 16:01:38,661 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:38,662 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:38,662 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-04-18 16:01:38,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:38,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:38,753 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:38,754 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:38,761 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 16:01:38,761 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:38,816 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:38,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:38,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=1461, Unknown=0, NotChecked=0, Total=1892
[2020-04-18 16:01:38,817 INFO L87 Difference]: Start difference. First operand 312 states and 619 transitions. Second operand 16 states.
[2020-04-18 16:01:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:39,620 INFO L93 Difference]: Finished difference Result 341 states and 653 transitions.
[2020-04-18 16:01:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 653 transitions.
[2020-04-18 16:01:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:39,621 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 16:01:39,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:39,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1056607801, now seen corresponding path program 6 times
[2020-04-18 16:01:39,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:39,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017638347]
[2020-04-18 16:01:39,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:39,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017638347]
[2020-04-18 16:01:39,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276305136]
[2020-04-18 16:01:39,659 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:39,744 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2020-04-18 16:01:39,745 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:39,745 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:01:39,746 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:39,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:39,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:01:39,795 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:39,796 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:39,802 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 67 transitions.
[2020-04-18 16:01:39,803 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:39,876 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 16:01:39,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-04-18 16:01:39,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=891, Invalid=3531, Unknown=0, NotChecked=0, Total=4422
[2020-04-18 16:01:39,877 INFO L87 Difference]: Start difference. First operand 341 states and 653 transitions. Second operand 14 states.
[2020-04-18 16:01:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:40,325 INFO L93 Difference]: Finished difference Result 386 states and 711 transitions.
[2020-04-18 16:01:40,325 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 711 transitions.
[2020-04-18 16:01:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:40,326 INFO L105 Mcr]: ---- MCR iteration 5 ----
[2020-04-18 16:01:40,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:40,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1056609241, now seen corresponding path program 7 times
[2020-04-18 16:01:40,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:40,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836986528]
[2020-04-18 16:01:40,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:40,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836986528]
[2020-04-18 16:01:40,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394409364]
[2020-04-18 16:01:40,376 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:40,466 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:40,467 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:40,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:40,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:40,538 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:40,540 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:40,546 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions.
[2020-04-18 16:01:40,546 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:40,547 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:40,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:40,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1053, Invalid=4497, Unknown=0, NotChecked=0, Total=5550
[2020-04-18 16:01:40,547 INFO L87 Difference]: Start difference. First operand 386 states and 711 transitions. Second operand 16 states.
[2020-04-18 16:01:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:41,278 INFO L93 Difference]: Finished difference Result 389 states and 712 transitions.
[2020-04-18 16:01:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 712 transitions.
[2020-04-18 16:01:41,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:41,279 INFO L105 Mcr]: ---- MCR iteration 6 ----
[2020-04-18 16:01:41,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:41,280 INFO L82 PathProgramCache]: Analyzing trace with hash 507575079, now seen corresponding path program 8 times
[2020-04-18 16:01:41,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:41,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559063662]
[2020-04-18 16:01:41,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:41,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559063662]
[2020-04-18 16:01:41,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457418538]
[2020-04-18 16:01:41,355 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:41,445 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:01:41,445 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:01:41,446 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:01:41,447 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:01:41,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-04-18 16:01:41,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:01:41,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2020-04-18 16:01:41,546 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:41,547 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:41,552 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 41 transitions.
[2020-04-18 16:01:41,553 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:41,586 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:41,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-04-18 16:01:41,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1464, Invalid=6368, Unknown=0, NotChecked=0, Total=7832
[2020-04-18 16:01:41,588 INFO L87 Difference]: Start difference. First operand 389 states and 712 transitions. Second operand 16 states.
[2020-04-18 16:01:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:42,404 INFO L93 Difference]: Finished difference Result 424 states and 749 transitions.
[2020-04-18 16:01:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 749 transitions.
[2020-04-18 16:01:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:42,405 INFO L105 Mcr]: ---- MCR iteration 7 ----
[2020-04-18 16:01:42,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:42,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1147615783, now seen corresponding path program 9 times
[2020-04-18 16:01:42,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:42,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983087950]
[2020-04-18 16:01:42,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:01:42,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983087950]
[2020-04-18 16:01:42,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:42,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:01:42,456 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:42,457 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:42,461 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:42,461 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:42,484 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:42,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:01:42,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1993, Invalid=9349, Unknown=0, NotChecked=0, Total=11342
[2020-04-18 16:01:42,486 INFO L87 Difference]: Start difference. First operand 424 states and 749 transitions. Second operand 9 states.
[2020-04-18 16:01:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:43,141 INFO L93 Difference]: Finished difference Result 424 states and 749 transitions.
[2020-04-18 16:01:43,141 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 749 transitions.
[2020-04-18 16:01:43,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:43,142 INFO L105 Mcr]: ---- MCR iteration 8 ----
[2020-04-18 16:01:43,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:43,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1136664103, now seen corresponding path program 10 times
[2020-04-18 16:01:43,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:43,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714492481]
[2020-04-18 16:01:43,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-04-18 16:01:43,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714492481]
[2020-04-18 16:01:43,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:43,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-04-18 16:01:43,191 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:43,192 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:43,196 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:43,197 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:43,197 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:43,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-04-18 16:01:43,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2490, Invalid=13766, Unknown=0, NotChecked=0, Total=16256
[2020-04-18 16:01:43,198 INFO L87 Difference]: Start difference. First operand 424 states and 749 transitions. Second operand 9 states.
[2020-04-18 16:01:43,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:43,851 INFO L93 Difference]: Finished difference Result 424 states and 749 transitions.
[2020-04-18 16:01:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 749 transitions.
[2020-04-18 16:01:43,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:01:43,853 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [861276059]
[2020-04-18 16:01:43,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:01:43,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-04-18 16:01:43,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [861276059]
[2020-04-18 16:01:43,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states
[2020-04-18 16:01:43,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:01:43,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2020-04-18 16:01:43,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3029, Invalid=18433, Unknown=0, NotChecked=0, Total=21462
[2020-04-18 16:01:43,855 INFO L87 Difference]: Start difference. First operand 30886 states and 165408 transitions. Second operand 29 states.
[2020-04-18 16:01:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:50,849 INFO L93 Difference]: Finished difference Result 171967 states and 736695 transitions.
[2020-04-18 16:01:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states.
[2020-04-18 16:01:50,850 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25
[2020-04-18 16:01:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:01:51,327 INFO L225 Difference]: With dead ends: 171967
[2020-04-18 16:01:51,328 INFO L226 Difference]: Without dead ends: 171757
[2020-04-18 16:01:51,331 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30336 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=9790, Invalid=63922, Unknown=0, NotChecked=0, Total=73712
[2020-04-18 16:01:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171757 states.
[2020-04-18 16:01:55,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171757 to 29802.
[2020-04-18 16:01:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29802 states.
[2020-04-18 16:01:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29802 states to 29802 states and 159321 transitions.
[2020-04-18 16:01:55,113 INFO L78 Accepts]: Start accepts. Automaton has 29802 states and 159321 transitions. Word has length 25
[2020-04-18 16:01:55,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:01:55,113 INFO L479 AbstractCegarLoop]: Abstraction has 29802 states and 159321 transitions.
[2020-04-18 16:01:55,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states.
[2020-04-18 16:01:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 29802 states and 159321 transitions.
[2020-04-18 16:01:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:55,115 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:01:55,115 INFO L425 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:01:56,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:01:56,520 INFO L427 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:01:56,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 123792641, now seen corresponding path program 1 times
[2020-04-18 16:01:56,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:01:56,521 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [598588450]
[2020-04-18 16:01:56,522 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:56,523 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions.
[2020-04-18 16:01:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states.
[2020-04-18 16:01:56,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:56,524 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:01:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:56,524 INFO L82 PathProgramCache]: Analyzing trace with hash 432159429, now seen corresponding path program 2 times
[2020-04-18 16:01:56,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:56,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351482819]
[2020-04-18 16:01:56,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-04-18 16:01:56,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351482819]
[2020-04-18 16:01:56,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:56,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 16:01:56,537 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:56,538 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:56,543 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 67 transitions.
[2020-04-18 16:01:56,543 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:56,547 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 16:01:56,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 16:01:56,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 16:01:56,548 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states.
[2020-04-18 16:01:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:56,551 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions.
[2020-04-18 16:01:56,551 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions.
[2020-04-18 16:01:56,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-04-18 16:01:56,551 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:01:56,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:01:56,552 INFO L82 PathProgramCache]: Analyzing trace with hash 123792641, now seen corresponding path program 3 times
[2020-04-18 16:01:56,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:01:56,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573128436]
[2020-04-18 16:01:56,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:01:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:01:56,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2020-04-18 16:01:56,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573128436]
[2020-04-18 16:01:56,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 16:01:56,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 16:01:56,594 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:01:56,596 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:01:56,599 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions.
[2020-04-18 16:01:56,599 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:01:56,609 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:01:56,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 16:01:56,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 16:01:56,609 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand 5 states.
[2020-04-18 16:01:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:56,634 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions.
[2020-04-18 16:01:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions.
[2020-04-18 16:01:56,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 16:01:56,635 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [598588450]
[2020-04-18 16:01:56,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 16:01:56,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 16:01:56,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [598588450]
[2020-04-18 16:01:56,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 16:01:56,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 16:01:56,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 16:01:56,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 16:01:56,636 INFO L87 Difference]: Start difference. First operand 29802 states and 159321 transitions. Second operand 5 states.
[2020-04-18 16:01:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:01:57,009 INFO L93 Difference]: Finished difference Result 53165 states and 272731 transitions.
[2020-04-18 16:01:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 16:01:57,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25
[2020-04-18 16:01:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 16:01:57,168 INFO L225 Difference]: With dead ends: 53165
[2020-04-18 16:01:57,168 INFO L226 Difference]: Without dead ends: 53102
[2020-04-18 16:01:57,168 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-04-18 16:01:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53102 states.
[2020-04-18 16:02:00,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53102 to 37675.
[2020-04-18 16:02:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37675 states.
[2020-04-18 16:02:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37675 states to 37675 states and 201015 transitions.
[2020-04-18 16:02:00,697 INFO L78 Accepts]: Start accepts. Automaton has 37675 states and 201015 transitions. Word has length 25
[2020-04-18 16:02:00,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 16:02:00,697 INFO L479 AbstractCegarLoop]: Abstraction has 37675 states and 201015 transitions.
[2020-04-18 16:02:00,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 16:02:00,697 INFO L276 IsEmpty]: Start isEmpty. Operand 37675 states and 201015 transitions.
[2020-04-18 16:02:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-04-18 16:02:00,700 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 16:02:00,700 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 16:02:00,700 INFO L427 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 16:02:00,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:02:00,701 INFO L82 PathProgramCache]: Analyzing trace with hash -480284107, now seen corresponding path program 1 times
[2020-04-18 16:02:00,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 16:02:00,701 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [402511207]
[2020-04-18 16:02:00,701 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:02:00,709 INFO L259 McrAutomatonBuilder]: Finished intersection with 484 states and 1539 transitions.
[2020-04-18 16:02:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states.
[2020-04-18 16:02:00,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-04-18 16:02:00,712 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 16:02:00,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:02:00,712 INFO L82 PathProgramCache]: Analyzing trace with hash -217383705, now seen corresponding path program 2 times
[2020-04-18 16:02:00,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:02:00,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403862697]
[2020-04-18 16:02:00,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:02:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:02:00,770 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-04-18 16:02:00,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403862697]
[2020-04-18 16:02:00,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642399078]
[2020-04-18 16:02:00,771 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:02:00,876 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-04-18 16:02:00,876 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:02:00,877 INFO L264 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-04-18 16:02:00,878 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:02:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-04-18 16:02:00,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:02:00,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2020-04-18 16:02:00,934 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:02:00,936 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:02:00,954 INFO L259 McrAutomatonBuilder]: Finished intersection with 89 states and 153 transitions.
[2020-04-18 16:02:00,954 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:02:01,026 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 16:02:01,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-04-18 16:02:01,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132
[2020-04-18 16:02:01,027 INFO L87 Difference]: Start difference. First operand 484 states. Second operand 12 states.
[2020-04-18 16:02:01,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 16:02:01,507 INFO L93 Difference]: Finished difference Result 1097 states and 2977 transitions.
[2020-04-18 16:02:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2977 transitions.
[2020-04-18 16:02:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-04-18 16:02:01,509 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 16:02:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 16:02:01,509 INFO L82 PathProgramCache]: Analyzing trace with hash -480282667, now seen corresponding path program 3 times
[2020-04-18 16:02:01,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 16:02:01,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089903421]
[2020-04-18 16:02:01,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 16:02:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 16:02:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 16:02:01,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089903421]
[2020-04-18 16:02:01,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005088024]
[2020-04-18 16:02:01,561 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:02:01,651 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2020-04-18 16:02:01,652 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-04-18 16:02:01,652 INFO L264 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-04-18 16:02:01,653 INFO L287 TraceCheckSpWp]: Computing forward predicates...
[2020-04-18 16:02:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 16:02:01,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-04-18 16:02:01,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15
[2020-04-18 16:02:01,733 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 16:02:01,734 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 16:02:01,747 INFO L259 McrAutomatonBuilder]: Finished intersection with 81 states and 133 transitions.
[2020-04-18 16:02:01,748 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 16:02:01,835 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times.
[2020-04-18 16:02:01,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2020-04-18 16:02:01,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650
[2020-04-18 16:02:01,836 INFO L87 Difference]: Start difference. First operand 1097 states and 2977 transitions. Second operand 18 states.
Received shutdown request...
[2020-04-18 16:02:03,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-04-18 16:02:03,486 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.RuntimeException: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.getOrConstruct(StrategyModuleMcr.java:128)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.isCorrect(StrategyModuleMcr.java:64)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:75)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:352)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:127)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.
at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1067)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.<init>(NestedWordAutomatonReachableStates.java:966)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.<init>(NestedWordAutomatonReachableStates.java:187)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.<init>(Difference.java:90)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.<init>(Difference.java:115)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.Mcr.exploreInterleavings(Mcr.java:118)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.Mcr.<init>(Mcr.java:86)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.getOrConstruct(StrategyModuleMcr.java:126)
... 23 more
[2020-04-18 16:02:03,491 INFO L168 Benchmark]: Toolchain (without parser) took 236458.64 ms. Allocated memory was 137.4 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 100.4 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,491 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.4 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.80 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 98.4 MB in the beginning and 161.4 MB in the end (delta: -63.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.37 ms. Allocated memory is still 202.4 MB. Free memory was 161.4 MB in the beginning and 159.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,492 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 202.4 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,492 INFO L168 Benchmark]: RCFGBuilder took 463.18 ms. Allocated memory is still 202.4 MB. Free memory was 158.0 MB in the beginning and 137.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,493 INFO L168 Benchmark]: TraceAbstraction took 235086.46 ms. Allocated memory was 202.4 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 137.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB.
[2020-04-18 16:02:03,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17 ms. Allocated memory is still 137.4 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 769.80 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 98.4 MB in the beginning and 161.4 MB in the end (delta: -63.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 78.37 ms. Allocated memory is still 202.4 MB. Free memory was 161.4 MB in the beginning and 159.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 31.89 ms. Allocated memory is still 202.4 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 463.18 ms. Allocated memory is still 202.4 MB. Free memory was 158.0 MB in the beginning and 137.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 235086.46 ms. Allocated memory was 202.4 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 137.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 2.3s, 61 ProgramPointsBefore, 18 ProgramPointsAfterwards, 58 TransitionsBefore, 12 TransitionsAfterwards, 592 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 304 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 486 CheckedPairsTotal, 51 TotalNumberOfCompositions
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.6s, 80 ProgramPointsBefore, 31 ProgramPointsAfterwards, 74 TransitionsBefore, 21 TransitionsAfterwards, 920 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 3 ConcurrentYvCompositions, 4 ChoiceCompositions, 472 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 942 CheckedPairsTotal, 62 TotalNumberOfCompositions
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.7s, 99 ProgramPointsBefore, 41 ProgramPointsAfterwards, 90 TransitionsBefore, 27 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 3 ConcurrentYvCompositions, 5 ChoiceCompositions, 673 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1426 CheckedPairsTotal, 74 TotalNumberOfCompositions
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 2.4s, 118 ProgramPointsBefore, 51 ProgramPointsAfterwards, 106 TransitionsBefore, 33 TransitionsAfterwards, 1756 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 4 ConcurrentYvCompositions, 6 ChoiceCompositions, 840 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2033 CheckedPairsTotal, 86 TotalNumberOfCompositions
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 2.5s, 137 ProgramPointsBefore, 61 ProgramPointsAfterwards, 122 TransitionsBefore, 39 TransitionsAfterwards, 2264 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 3 ConcurrentYvCompositions, 7 ChoiceCompositions, 1058 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2999 CheckedPairsTotal, 104 TotalNumberOfCompositions
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 2.3s, 156 ProgramPointsBefore, 71 ProgramPointsAfterwards, 138 TransitionsBefore, 45 TransitionsAfterwards, 2832 CoEnabledTransitionPairs, 6 FixpointIterations, 66 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 4 ConcurrentYvCompositions, 8 ChoiceCompositions, 1407 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3678 CheckedPairsTotal, 113 TotalNumberOfCompositions
- ExceptionOrErrorResult: RuntimeException: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: RuntimeException: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.getOrConstruct(StrategyModuleMcr.java:128)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Completed graceful shutdown