/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_pso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-17 22:13:04,110 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-17 22:13:04,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-17 22:13:04,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-17 22:13:04,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-17 22:13:04,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-17 22:13:04,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-17 22:13:04,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-17 22:13:04,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-17 22:13:04,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-17 22:13:04,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-04-17 22:13:04,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-17 22:13:04,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-17 22:13:04,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-17 22:13:04,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-17 22:13:04,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-17 22:13:04,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-17 22:13:04,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-17 22:13:04,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-17 22:13:04,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-17 22:13:04,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-17 22:13:04,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-17 22:13:04,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-17 22:13:04,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-17 22:13:04,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-17 22:13:04,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-17 22:13:04,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-17 22:13:04,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-17 22:13:04,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-17 22:13:04,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-17 22:13:04,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-17 22:13:04,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-17 22:13:04,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-17 22:13:04,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-04-17 22:13:04,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-04-17 22:13:04,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-17 22:13:04,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-17 22:13:04,185 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 22:13:04,200 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-17 22:13:04,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-17 22:13:04,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-17 22:13:04,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-17 22:13:04,203 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-17 22:13:04,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-17 22:13:04,203 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-17 22:13:04,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-17 22:13:04,203 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-17 22:13:04,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-17 22:13:04,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-17 22:13:04,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-17 22:13:04,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-17 22:13:04,204 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-17 22:13:04,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-17 22:13:04,205 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-17 22:13:04,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-17 22:13:04,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-17 22:13:04,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-17 22:13:04,206 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-17 22:13:04,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-17 22:13:04,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 22:13:04,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-17 22:13:04,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-17 22:13:04,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-17 22:13:04,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-17 22:13:04,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-17 22:13:04,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-17 22:13:04,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-17 22:13:04,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-17 22:13:04,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-17 22:13:04,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-17 22:13:04,521 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-17 22:13:04,521 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-17 22:13:04,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i
[2020-04-17 22:13:04,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e8cf549/0364fdf333994ac8bb317b5c9c943bfa/FLAGe873799c9
[2020-04-17 22:13:05,167 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-17 22:13:05,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i
[2020-04-17 22:13:05,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e8cf549/0364fdf333994ac8bb317b5c9c943bfa/FLAGe873799c9
[2020-04-17 22:13:05,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e8cf549/0364fdf333994ac8bb317b5c9c943bfa
[2020-04-17 22:13:05,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-17 22:13:05,444 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-17 22:13:05,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-17 22:13:05,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-17 22:13:05,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-17 22:13:05,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:13:05" (1/1) ...
[2020-04-17 22:13:05,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bea890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:05, skipping insertion in model container
[2020-04-17 22:13:05,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:13:05" (1/1) ...
[2020-04-17 22:13:05,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-17 22:13:05,512 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-17 22:13:05,997 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:13:06,010 INFO L203 MainTranslator]: Completed pre-run
[2020-04-17 22:13:06,062 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:13:06,158 INFO L208 MainTranslator]: Completed translation
[2020-04-17 22:13:06,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06 WrapperNode
[2020-04-17 22:13:06,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-17 22:13:06,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-17 22:13:06,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-17 22:13:06,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-17 22:13:06,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-17 22:13:06,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-17 22:13:06,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-17 22:13:06,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-17 22:13:06,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (1/1) ...
[2020-04-17 22:13:06,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-17 22:13:06,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-17 22:13:06,232 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-17 22:13:06,232 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-17 22:13:06,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (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 22:13:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-17 22:13:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-17 22:13:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-17 22:13:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-17 22:13:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-17 22:13:06,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-17 22:13:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-17 22:13:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-17 22:13:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-17 22:13:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-17 22:13:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-17 22:13:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-17 22:13:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-17 22:13:06,303 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 22:13:06,681 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-17 22:13:06,682 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-17 22:13:06,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:13:06 BoogieIcfgContainer
[2020-04-17 22:13:06,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-17 22:13:06,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-17 22:13:06,688 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-17 22:13:06,691 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-17 22:13:06,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:13:05" (1/3) ...
[2020-04-17 22:13:06,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:13:06, skipping insertion in model container
[2020-04-17 22:13:06,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:13:06" (2/3) ...
[2020-04-17 22:13:06,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:13:06, skipping insertion in model container
[2020-04-17 22:13:06,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:13:06" (3/3) ...
[2020-04-17 22:13:06,695 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i
[2020-04-17 22:13:06,706 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-17 22:13:06,707 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-17 22:13:06,714 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-17 22:13:06,715 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-17 22:13:06,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,742 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,742 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,742 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,743 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,743 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,744 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,744 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,744 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,745 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,745 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,745 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,746 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,746 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,746 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,746 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,747 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,747 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,752 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,752 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,753 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,759 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,760 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,760 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,760 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,764 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,764 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:13:06,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-17 22:13:06,804 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-17 22:13:06,804 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-17 22:13:06,805 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-17 22:13:06,805 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-17 22:13:06,805 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-17 22:13:06,805 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-17 22:13:06,805 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-17 22:13:06,805 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-17 22:13:06,822 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow
[2020-04-17 22:13:06,824 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow
[2020-04-17 22:13:06,869 INFO L129 PetriNetUnfolder]: 2/65 cut-off events.
[2020-04-17 22:13:06,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:13:06,875 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 22:13:06,878 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow
[2020-04-17 22:13:06,899 INFO L129 PetriNetUnfolder]: 2/65 cut-off events.
[2020-04-17 22:13:06,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:13:06,900 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 22:13:06,902 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178
[2020-04-17 22:13:06,903 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-17 22:13:08,490 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47
[2020-04-17 22:13:08,615 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2244
[2020-04-17 22:13:08,616 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56
[2020-04-17 22:13:08,625 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow
[2020-04-17 22:13:08,673 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states.
[2020-04-17 22:13:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states.
[2020-04-17 22:13:08,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-17 22:13:08,688 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:08,689 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:08,690 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times
[2020-04-17 22:13:08,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:08,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798207098]
[2020-04-17 22:13:08,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:08,906 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 22:13:08,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798207098]
[2020-04-17 22:13:08,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:08,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:13:08,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77432817]
[2020-04-17 22:13:08,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-17 22:13:08,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:08,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-17 22:13:08,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-17 22:13:08,926 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states.
[2020-04-17 22:13:08,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:08,954 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions.
[2020-04-17 22:13:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-04-17 22:13:08,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-04-17 22:13:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:08,987 INFO L225 Difference]: With dead ends: 274
[2020-04-17 22:13:08,987 INFO L226 Difference]: Without dead ends: 226
[2020-04-17 22:13:08,989 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 22:13:09,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2020-04-17 22:13:09,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2020-04-17 22:13:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states.
[2020-04-17 22:13:09,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions.
[2020-04-17 22:13:09,061 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8
[2020-04-17 22:13:09,062 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:09,062 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions.
[2020-04-17 22:13:09,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-17 22:13:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions.
[2020-04-17 22:13:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-17 22:13:09,064 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:09,064 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:09,064 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:09,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:09,065 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times
[2020-04-17 22:13:09,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:09,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582192308]
[2020-04-17 22:13:09,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:09,222 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 22:13:09,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582192308]
[2020-04-17 22:13:09,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:09,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:13:09,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299181780]
[2020-04-17 22:13:09,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:09,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:09,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:09,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:09,228 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states.
[2020-04-17 22:13:09,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:09,290 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions.
[2020-04-17 22:13:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:09,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-04-17 22:13:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:09,298 INFO L225 Difference]: With dead ends: 250
[2020-04-17 22:13:09,299 INFO L226 Difference]: Without dead ends: 202
[2020-04-17 22:13:09,300 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 22:13:09,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-04-17 22:13:09,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-04-17 22:13:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states.
[2020-04-17 22:13:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions.
[2020-04-17 22:13:09,337 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9
[2020-04-17 22:13:09,337 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:09,338 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions.
[2020-04-17 22:13:09,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions.
[2020-04-17 22:13:09,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-17 22:13:09,339 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:09,339 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:09,340 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:09,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times
[2020-04-17 22:13:09,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:09,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776047113]
[2020-04-17 22:13:09,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:09,434 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 22:13:09,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776047113]
[2020-04-17 22:13:09,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:09,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:13:09,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239224479]
[2020-04-17 22:13:09,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:13:09,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:09,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:13:09,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:09,437 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 5 states.
[2020-04-17 22:13:09,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:09,509 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions.
[2020-04-17 22:13:09,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:13:09,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2020-04-17 22:13:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:09,511 INFO L225 Difference]: With dead ends: 262
[2020-04-17 22:13:09,511 INFO L226 Difference]: Without dead ends: 154
[2020-04-17 22:13:09,512 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 22:13:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2020-04-17 22:13:09,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154.
[2020-04-17 22:13:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states.
[2020-04-17 22:13:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions.
[2020-04-17 22:13:09,525 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10
[2020-04-17 22:13:09,525 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:09,525 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions.
[2020-04-17 22:13:09,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:13:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions.
[2020-04-17 22:13:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-17 22:13:09,527 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:09,527 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:09,527 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:09,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1312152701, now seen corresponding path program 1 times
[2020-04-17 22:13:09,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:09,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853956426]
[2020-04-17 22:13:09,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:09,627 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 22:13:09,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853956426]
[2020-04-17 22:13:09,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:09,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:13:09,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360830468]
[2020-04-17 22:13:09,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:09,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:09,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:09,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:09,630 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 4 states.
[2020-04-17 22:13:09,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:09,665 INFO L93 Difference]: Finished difference Result 174 states and 426 transitions.
[2020-04-17 22:13:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:09,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2020-04-17 22:13:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:09,667 INFO L225 Difference]: With dead ends: 174
[2020-04-17 22:13:09,667 INFO L226 Difference]: Without dead ends: 150
[2020-04-17 22:13:09,668 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 22:13:09,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2020-04-17 22:13:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150.
[2020-04-17 22:13:09,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states.
[2020-04-17 22:13:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions.
[2020-04-17 22:13:09,680 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11
[2020-04-17 22:13:09,680 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:09,680 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions.
[2020-04-17 22:13:09,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions.
[2020-04-17 22:13:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-17 22:13:09,685 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:09,686 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:09,686 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:09,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:09,686 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times
[2020-04-17 22:13:09,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:09,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471356260]
[2020-04-17 22:13:09,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:09,765 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 22:13:09,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471356260]
[2020-04-17 22:13:09,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:09,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:13:09,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883716014]
[2020-04-17 22:13:09,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:09,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:09,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:09,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:09,768 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states.
[2020-04-17 22:13:09,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:09,812 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions.
[2020-04-17 22:13:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:09,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-04-17 22:13:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:09,817 INFO L225 Difference]: With dead ends: 164
[2020-04-17 22:13:09,817 INFO L226 Difference]: Without dead ends: 128
[2020-04-17 22:13:09,818 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 22:13:09,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2020-04-17 22:13:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128.
[2020-04-17 22:13:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states.
[2020-04-17 22:13:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions.
[2020-04-17 22:13:09,826 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12
[2020-04-17 22:13:09,826 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:09,826 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions.
[2020-04-17 22:13:09,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions.
[2020-04-17 22:13:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-17 22:13:09,828 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:09,828 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:09,830 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:09,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times
[2020-04-17 22:13:09,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:09,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947220242]
[2020-04-17 22:13:09,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:09,932 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 22:13:09,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947220242]
[2020-04-17 22:13:09,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:09,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:13:09,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888961837]
[2020-04-17 22:13:09,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:13:09,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:09,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:13:09,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:09,934 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states.
[2020-04-17 22:13:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:09,992 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions.
[2020-04-17 22:13:09,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:13:09,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-04-17 22:13:09,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:09,994 INFO L225 Difference]: With dead ends: 116
[2020-04-17 22:13:09,994 INFO L226 Difference]: Without dead ends: 92
[2020-04-17 22:13:09,995 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 22:13:09,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2020-04-17 22:13:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2020-04-17 22:13:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states.
[2020-04-17 22:13:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions.
[2020-04-17 22:13:09,999 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13
[2020-04-17 22:13:09,999 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:09,999 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions.
[2020-04-17 22:13:09,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:13:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions.
[2020-04-17 22:13:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-17 22:13:10,000 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:10,001 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:10,001 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:10,001 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times
[2020-04-17 22:13:10,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:10,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712032573]
[2020-04-17 22:13:10,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:10,042 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 22:13:10,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712032573]
[2020-04-17 22:13:10,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:10,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:13:10,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536692423]
[2020-04-17 22:13:10,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:13:10,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:10,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:13:10,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:13:10,045 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states.
[2020-04-17 22:13:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:10,071 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions.
[2020-04-17 22:13:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:10,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2020-04-17 22:13:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:10,073 INFO L225 Difference]: With dead ends: 120
[2020-04-17 22:13:10,073 INFO L226 Difference]: Without dead ends: 94
[2020-04-17 22:13:10,073 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 22:13:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2020-04-17 22:13:10,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90.
[2020-04-17 22:13:10,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states.
[2020-04-17 22:13:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions.
[2020-04-17 22:13:10,077 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14
[2020-04-17 22:13:10,077 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:10,078 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions.
[2020-04-17 22:13:10,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:13:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions.
[2020-04-17 22:13:10,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:13:10,079 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:10,079 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:10,079 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:10,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:10,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times
[2020-04-17 22:13:10,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:10,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224569926]
[2020-04-17 22:13:10,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:10,160 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 22:13:10,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224569926]
[2020-04-17 22:13:10,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:10,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:13:10,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562348158]
[2020-04-17 22:13:10,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:13:10,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:10,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:13:10,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:13:10,163 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states.
[2020-04-17 22:13:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:10,204 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions.
[2020-04-17 22:13:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:13:10,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-04-17 22:13:10,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:10,205 INFO L225 Difference]: With dead ends: 113
[2020-04-17 22:13:10,205 INFO L226 Difference]: Without dead ends: 70
[2020-04-17 22:13:10,206 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 22:13:10,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2020-04-17 22:13:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68.
[2020-04-17 22:13:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-04-17 22:13:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions.
[2020-04-17 22:13:10,210 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15
[2020-04-17 22:13:10,210 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:10,210 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions.
[2020-04-17 22:13:10,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:13:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions.
[2020-04-17 22:13:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:13:10,211 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:13:10,212 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:13:10,212 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:13:10,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:13:10,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times
[2020-04-17 22:13:10,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:13:10,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458406310]
[2020-04-17 22:13:10,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:13:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:13:10,284 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 22:13:10,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458406310]
[2020-04-17 22:13:10,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:13:10,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-17 22:13:10,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701989679]
[2020-04-17 22:13:10,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-17 22:13:10,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:13:10,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-17 22:13:10,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-17 22:13:10,288 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states.
[2020-04-17 22:13:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:13:10,323 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions.
[2020-04-17 22:13:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:13:10,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-04-17 22:13:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:13:10,324 INFO L225 Difference]: With dead ends: 58
[2020-04-17 22:13:10,324 INFO L226 Difference]: Without dead ends: 0
[2020-04-17 22:13:10,324 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 22:13:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-17 22:13:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-17 22:13:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-17 22:13:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-17 22:13:10,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2020-04-17 22:13:10,326 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:13:10,326 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-17 22:13:10,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-17 22:13:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-17 22:13:10,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-17 22:13:10,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:13:10 BasicIcfg
[2020-04-17 22:13:10,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-17 22:13:10,334 INFO L168 Benchmark]: Toolchain (without parser) took 4910.96 ms. Allocated memory was 137.4 MB in the beginning and 250.1 MB in the end (delta: 112.7 MB). Free memory was 101.1 MB in the beginning and 191.8 MB in the end (delta: -90.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,336 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.71 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 158.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.63 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 156.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,343 INFO L168 Benchmark]: Boogie Preprocessor took 27.91 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,344 INFO L168 Benchmark]: RCFGBuilder took 453.96 ms. Allocated memory is still 201.3 MB. Free memory was 154.9 MB in the beginning and 132.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,346 INFO L168 Benchmark]: TraceAbstraction took 3643.64 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 132.2 MB in the beginning and 191.8 MB in the end (delta: -59.6 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-17 22:13:10,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 714.71 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 158.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 43.63 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 156.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 27.91 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 453.96 ms. Allocated memory is still 201.3 MB. Free memory was 154.9 MB in the beginning and 132.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3643.64 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 132.2 MB in the beginning and 191.8 MB in the end (delta: -59.6 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: 1.7s, 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: 0.3s, 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: 3.5s, 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, 0.1s 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...