/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-17 22:13:25,985 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-17 22:13:25,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-17 22:13:26,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-17 22:13:26,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-17 22:13:26,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-17 22:13:26,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-17 22:13:26,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-17 22:13:26,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-17 22:13:26,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-17 22:13:26,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
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[2020-04-17 22:13:26,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-17 22:13:26,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-17 22:13:26,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-17 22:13:26,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-17 22:13:26,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-17 22:13:26,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-17 22:13:26,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-17 22:13:26,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-17 22:13:26,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-17 22:13:26,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-17 22:13:26,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-17 22:13:26,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-17 22:13:26,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-17 22:13:26,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-17 22:13:26,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-17 22:13:26,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-17 22:13:26,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-17 22:13:26,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-17 22:13:26,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-17 22:13:26,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-17 22:13:26,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-17 22:13:26,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-04-17 22:13:26,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-17 22:13:26,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-17 22:13:26,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf
[2020-04-17 22:13:26,076 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-17 22:13:26,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-17 22:13:26,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-17 22:13:26,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-17 22:13:26,079 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-17 22:13:26,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-17 22:13:26,080 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-17 22:13:26,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-17 22:13:26,080 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-17 22:13:26,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-17 22:13:26,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-17 22:13:26,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-17 22:13:26,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-17 22:13:26,081 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-17 22:13:26,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-17 22:13:26,081 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-17 22:13:26,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-17 22:13:26,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-17 22:13:26,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-17 22:13:26,082 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-17 22:13:26,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-17 22:13:26,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 22:13:26,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-17 22:13:26,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-17 22:13:26,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-17 22:13:26,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-17 22:13:26,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-17 22:13:26,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-17 22:13:26,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-17 22:13:26,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-17 22:13:26,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-17 22:13:26,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-17 22:13:26,377 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-17 22:13:26,377 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-17 22:13:26,378 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i
[2020-04-17 22:13:26,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48d4b1d14/e255692208b14d279939d88c2d45f9c1/FLAGa9f3f0b6d
[2020-04-17 22:13:27,028 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-17 22:13:27,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i
[2020-04-17 22:13:27,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48d4b1d14/e255692208b14d279939d88c2d45f9c1/FLAGa9f3f0b6d
[2020-04-17 22:13:27,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48d4b1d14/e255692208b14d279939d88c2d45f9c1
[2020-04-17 22:13:27,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-17 22:13:27,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-17 22:13:27,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-17 22:13:27,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-17 22:13:27,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-17 22:13:27,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:13:27" (1/1) ...
[2020-04-17 22:13:27,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10143938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:27, skipping insertion in model container
[2020-04-17 22:13:27,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:13:27" (1/1) ...
[2020-04-17 22:13:27,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-17 22:13:27,414 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-17 22:13:27,918 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:13:27,934 INFO L203 MainTranslator]: Completed pre-run
[2020-04-17 22:13:28,003 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:13:28,077 INFO L208 MainTranslator]: Completed translation
[2020-04-17 22:13:28,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28 WrapperNode
[2020-04-17 22:13:28,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-17 22:13:28,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-17 22:13:28,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-17 22:13:28,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-17 22:13:28,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-17 22:13:28,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-17 22:13:28,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-17 22:13:28,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-17 22:13:28,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (1/1) ...
[2020-04-17 22:13:28,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-17 22:13:28,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-17 22:13:28,163 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-17 22:13:28,163 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-17 22:13:28,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (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
[2020-04-17 22:13:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-17 22:13:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-17 22:13:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-17 22:13:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-17 22:13:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-17 22:13:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-17 22:13:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-17 22:13:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-17 22:13:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-17 22:13:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-17 22:13:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-17 22:13:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-17 22:13:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-17 22:13:28,243 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-04-17 22:13:28,656 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-17 22:13:28,656 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-17 22:13:28,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:13:28 BoogieIcfgContainer
[2020-04-17 22:13:28,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-17 22:13:28,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-17 22:13:28,662 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-17 22:13:28,665 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-17 22:13:28,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:13:27" (1/3) ...
[2020-04-17 22:13:28,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa893eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:13:28, skipping insertion in model container
[2020-04-17 22:13:28,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:28" (2/3) ...
[2020-04-17 22:13:28,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa893eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:13:28, skipping insertion in model container
[2020-04-17 22:13:28,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:13:28" (3/3) ...
[2020-04-17 22:13:28,668 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i
[2020-04-17 22:13:28,676 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-17 22:13:28,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-17 22:13:28,683 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-17 22:13:28,684 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-17 22:13:28,717 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,717 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,718 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,720 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,722 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,722 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,722 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,723 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,723 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,723 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,726 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,726 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,726 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,726 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,732 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,732 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,733 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,733 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,748 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,749 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,754 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,755 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,755 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:28,778 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-17 22:13:28,800 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-17 22:13:28,800 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-17 22:13:28,801 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-17 22:13:28,801 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-17 22:13:28,801 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-17 22:13:28,801 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-17 22:13:28,801 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-17 22:13:28,802 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-17 22:13:28,817 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow
[2020-04-17 22:13:28,820 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow
[2020-04-17 22:13:28,862 INFO L129 PetriNetUnfolder]: 2/65 cut-off events.
[2020-04-17 22:13:28,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:13:28,867 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place.
[2020-04-17 22:13:28,870 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow
[2020-04-17 22:13:28,895 INFO L129 PetriNetUnfolder]: 2/65 cut-off events.
[2020-04-17 22:13:28,895 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:13:28,896 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place.
[2020-04-17 22:13:28,898 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178
[2020-04-17 22:13:28,899 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-17 22:13:30,506 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47
[2020-04-17 22:13:30,617 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2244
[2020-04-17 22:13:30,617 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56
[2020-04-17 22:13:30,621 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow
[2020-04-17 22:13:30,644 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states.
[2020-04-17 22:13:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states.
[2020-04-17 22:13:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-17 22:13:30,655 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:30,655 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:30,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times
[2020-04-17 22:13:30,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:30,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938009508]
[2020-04-17 22:13:30,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:30,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938009508]
[2020-04-17 22:13:30,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:30,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:13:30,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093827861]
[2020-04-17 22:13:30,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-17 22:13:30,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:30,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-17 22:13:30,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-17 22:13:30,960 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states.
[2020-04-17 22:13:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:31,008 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions.
[2020-04-17 22:13:31,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-04-17 22:13:31,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-04-17 22:13:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:31,042 INFO L225 Difference]: With dead ends: 274
[2020-04-17 22:13:31,043 INFO L226 Difference]: Without dead ends: 226
[2020-04-17 22:13:31,047 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-17 22:13:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2020-04-17 22:13:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2020-04-17 22:13:31,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states.
[2020-04-17 22:13:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions.
[2020-04-17 22:13:31,127 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8
[2020-04-17 22:13:31,128 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:31,129 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions.
[2020-04-17 22:13:31,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-17 22:13:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions.
[2020-04-17 22:13:31,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-17 22:13:31,131 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:31,131 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:31,132 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:31,133 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times
[2020-04-17 22:13:31,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:31,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421505680]
[2020-04-17 22:13:31,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:31,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421505680]
[2020-04-17 22:13:31,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:31,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:13:31,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709102208]
[2020-04-17 22:13:31,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:31,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:31,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:31,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:31,262 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states.
[2020-04-17 22:13:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:31,296 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions.
[2020-04-17 22:13:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:31,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-04-17 22:13:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:31,299 INFO L225 Difference]: With dead ends: 250
[2020-04-17 22:13:31,299 INFO L226 Difference]: Without dead ends: 202
[2020-04-17 22:13:31,300 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-04-17 22:13:31,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-04-17 22:13:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states.
[2020-04-17 22:13:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions.
[2020-04-17 22:13:31,318 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9
[2020-04-17 22:13:31,319 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:31,319 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions.
[2020-04-17 22:13:31,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:31,319 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions.
[2020-04-17 22:13:31,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-17 22:13:31,321 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:31,321 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:31,321 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:31,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:31,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times
[2020-04-17 22:13:31,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:31,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199525024]
[2020-04-17 22:13:31,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:31,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199525024]
[2020-04-17 22:13:31,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:31,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:13:31,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595277909]
[2020-04-17 22:13:31,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:13:31,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:31,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:13:31,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:31,403 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 5 states.
[2020-04-17 22:13:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:31,479 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions.
[2020-04-17 22:13:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:13:31,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2020-04-17 22:13:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:31,482 INFO L225 Difference]: With dead ends: 262
[2020-04-17 22:13:31,482 INFO L226 Difference]: Without dead ends: 154
[2020-04-17 22:13:31,482 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-04-17 22:13:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2020-04-17 22:13:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154.
[2020-04-17 22:13:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states.
[2020-04-17 22:13:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions.
[2020-04-17 22:13:31,494 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10
[2020-04-17 22:13:31,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:31,495 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions.
[2020-04-17 22:13:31,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:13:31,495 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions.
[2020-04-17 22:13:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-17 22:13:31,496 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:31,497 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:31,497 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:31,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:31,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1312152701, now seen corresponding path program 1 times
[2020-04-17 22:13:31,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:31,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444492843]
[2020-04-17 22:13:31,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:31,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444492843]
[2020-04-17 22:13:31,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:31,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:13:31,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828945957]
[2020-04-17 22:13:31,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:31,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:31,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:31,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:31,582 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 4 states.
[2020-04-17 22:13:31,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:31,619 INFO L93 Difference]: Finished difference Result 174 states and 426 transitions.
[2020-04-17 22:13:31,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:31,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2020-04-17 22:13:31,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:31,622 INFO L225 Difference]: With dead ends: 174
[2020-04-17 22:13:31,623 INFO L226 Difference]: Without dead ends: 150
[2020-04-17 22:13:31,623 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:31,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2020-04-17 22:13:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150.
[2020-04-17 22:13:31,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states.
[2020-04-17 22:13:31,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions.
[2020-04-17 22:13:31,641 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11
[2020-04-17 22:13:31,642 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:31,642 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions.
[2020-04-17 22:13:31,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:31,644 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions.
[2020-04-17 22:13:31,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-17 22:13:31,645 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:31,646 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:31,646 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times
[2020-04-17 22:13:31,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:31,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399108263]
[2020-04-17 22:13:31,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:31,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399108263]
[2020-04-17 22:13:31,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:31,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:13:31,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480879689]
[2020-04-17 22:13:31,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:31,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:31,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:31,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:31,739 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states.
[2020-04-17 22:13:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:31,770 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions.
[2020-04-17 22:13:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:31,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-04-17 22:13:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:31,772 INFO L225 Difference]: With dead ends: 164
[2020-04-17 22:13:31,772 INFO L226 Difference]: Without dead ends: 128
[2020-04-17 22:13:31,772 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:31,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2020-04-17 22:13:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128.
[2020-04-17 22:13:31,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states.
[2020-04-17 22:13:31,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions.
[2020-04-17 22:13:31,779 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12
[2020-04-17 22:13:31,779 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:31,779 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions.
[2020-04-17 22:13:31,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions.
[2020-04-17 22:13:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-17 22:13:31,780 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:31,781 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:31,781 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:31,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:31,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times
[2020-04-17 22:13:31,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:31,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854684041]
[2020-04-17 22:13:31,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:31,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:31,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854684041]
[2020-04-17 22:13:31,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:31,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:13:31,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025153281]
[2020-04-17 22:13:31,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:13:31,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:31,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:13:31,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:31,856 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states.
[2020-04-17 22:13:31,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:31,913 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions.
[2020-04-17 22:13:31,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:13:31,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-17 22:13:31,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:31,915 INFO L225 Difference]: With dead ends: 116
[2020-04-17 22:13:31,915 INFO L226 Difference]: Without dead ends: 92
[2020-04-17 22:13:31,915 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-17 22:13:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2020-04-17 22:13:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2020-04-17 22:13:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states.
[2020-04-17 22:13:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions.
[2020-04-17 22:13:31,920 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13
[2020-04-17 22:13:31,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:31,920 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions.
[2020-04-17 22:13:31,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:13:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions.
[2020-04-17 22:13:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-17 22:13:31,922 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:31,922 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:31,922 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:31,922 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times
[2020-04-17 22:13:31,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:31,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86010733]
[2020-04-17 22:13:31,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:31,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86010733]
[2020-04-17 22:13:31,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:31,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:13:31,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011257568]
[2020-04-17 22:13:31,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:31,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:31,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:31,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:31,999 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states.
[2020-04-17 22:13:32,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:32,025 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions.
[2020-04-17 22:13:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:32,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2020-04-17 22:13:32,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:32,027 INFO L225 Difference]: With dead ends: 120
[2020-04-17 22:13:32,027 INFO L226 Difference]: Without dead ends: 94
[2020-04-17 22:13:32,028 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2020-04-17 22:13:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90.
[2020-04-17 22:13:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states.
[2020-04-17 22:13:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions.
[2020-04-17 22:13:32,032 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14
[2020-04-17 22:13:32,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:32,032 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions.
[2020-04-17 22:13:32,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions.
[2020-04-17 22:13:32,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:13:32,033 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:32,034 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:32,034 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:32,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:32,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times
[2020-04-17 22:13:32,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:32,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558714539]
[2020-04-17 22:13:32,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:32,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558714539]
[2020-04-17 22:13:32,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:32,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:13:32,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412931192]
[2020-04-17 22:13:32,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:13:32,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:32,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:13:32,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:32,105 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states.
[2020-04-17 22:13:32,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:32,147 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions.
[2020-04-17 22:13:32,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:32,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-04-17 22:13:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:32,149 INFO L225 Difference]: With dead ends: 113
[2020-04-17 22:13:32,149 INFO L226 Difference]: Without dead ends: 70
[2020-04-17 22:13:32,149 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:13:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2020-04-17 22:13:32,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68.
[2020-04-17 22:13:32,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-04-17 22:13:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions.
[2020-04-17 22:13:32,152 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15
[2020-04-17 22:13:32,153 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:32,153 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions.
[2020-04-17 22:13:32,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:13:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions.
[2020-04-17 22:13:32,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:13:32,158 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:32,158 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:32,158 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:32,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:32,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times
[2020-04-17 22:13:32,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:32,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629066058]
[2020-04-17 22:13:32,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 22:13:32,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629066058]
[2020-04-17 22:13:32,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:32,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-17 22:13:32,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152368663]
[2020-04-17 22:13:32,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-17 22:13:32,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:32,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-17 22:13:32,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-17 22:13:32,235 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states.
[2020-04-17 22:13:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:32,283 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions.
[2020-04-17 22:13:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:13:32,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-04-17 22:13:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:32,284 INFO L225 Difference]: With dead ends: 58
[2020-04-17 22:13:32,285 INFO L226 Difference]: Without dead ends: 0
[2020-04-17 22:13:32,285 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:13:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-17 22:13:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-17 22:13:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-17 22:13:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-17 22:13:32,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2020-04-17 22:13:32,286 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:32,287 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-17 22:13:32,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-17 22:13:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-17 22:13:32,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-17 22:13:32,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:13:32 BasicIcfg
[2020-04-17 22:13:32,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-17 22:13:32,293 INFO L168 Benchmark]: Toolchain (without parser) took 4970.43 ms. Allocated memory was 143.7 MB in the beginning and 250.6 MB in the end (delta: 107.0 MB). Free memory was 99.0 MB in the beginning and 191.7 MB in the end (delta: -92.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,296 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.06 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 97.0 MB in the beginning and 157.5 MB in the end (delta: -60.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.73 ms. Allocated memory is still 200.8 MB. Free memory was 157.5 MB in the beginning and 155.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,304 INFO L168 Benchmark]: Boogie Preprocessor took 29.42 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,305 INFO L168 Benchmark]: RCFGBuilder took 497.54 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 132.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,307 INFO L168 Benchmark]: TraceAbstraction took 3629.48 ms. Allocated memory was 200.8 MB in the beginning and 250.6 MB in the end (delta: 49.8 MB). Free memory was 131.5 MB in the beginning and 191.7 MB in the end (delta: -60.1 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-17 22:13:32,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 736.06 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 97.0 MB in the beginning and 157.5 MB in the end (delta: -60.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 54.73 ms. Allocated memory is still 200.8 MB. Free memory was 157.5 MB in the beginning and 155.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 29.42 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 497.54 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 132.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3629.48 ms. Allocated memory was 200.8 MB in the beginning and 250.6 MB in the end (delta: 49.8 MB). Free memory was 131.5 MB in the beginning and 191.7 MB in the end (delta: -60.1 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.8s, 76 ProgramPointsBefore, 31 ProgramPointsAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 609 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2244 CheckedPairsTotal, 56 TotalNumberOfCompositions
- PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 188 SDtfs, 171 SDslu, 276 SDs, 0 SdLazy, 115 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3462 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...