/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/safe016_tso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-17 22:08:35,974 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-17 22:08:35,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-17 22:08:35,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-17 22:08:35,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-17 22:08:35,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-17 22:08:35,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-17 22:08:36,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-17 22:08:36,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-17 22:08:36,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-17 22:08:36,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-04-17 22:08:36,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-17 22:08:36,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-17 22:08:36,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-17 22:08:36,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-17 22:08:36,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-17 22:08:36,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-17 22:08:36,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-17 22:08:36,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-17 22:08:36,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-17 22:08:36,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-17 22:08:36,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-17 22:08:36,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-17 22:08:36,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-17 22:08:36,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-17 22:08:36,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-17 22:08:36,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-17 22:08:36,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-17 22:08:36,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-17 22:08:36,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-17 22:08:36,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-17 22:08:36,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-17 22:08:36,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-04-17 22:08:36,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-04-17 22:08:36,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-04-17 22:08:36,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-04-17 22:08:36,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-04-17 22:08:36,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-04-17 22:08:36,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-04-17 22:08:36,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-04-17 22:08:36,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-17 22:08:36,057 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 22:08:36,089 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-17 22:08:36,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-17 22:08:36,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-17 22:08:36,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-17 22:08:36,091 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-17 22:08:36,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-17 22:08:36,092 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-17 22:08:36,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-17 22:08:36,092 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-17 22:08:36,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-17 22:08:36,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-17 22:08:36,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-17 22:08:36,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-17 22:08:36,093 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-17 22:08:36,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-17 22:08:36,094 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-17 22:08:36,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-17 22:08:36,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-17 22:08:36,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-17 22:08:36,094 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-17 22:08:36,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-17 22:08:36,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 22:08:36,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-17 22:08:36,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-17 22:08:36,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-17 22:08:36,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-17 22:08:36,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-17 22:08:36,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-17 22:08:36,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-17 22:08:36,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-17 22:08:36,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-17 22:08:36,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-17 22:08:36,398 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-17 22:08:36,398 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-17 22:08:36,399 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i
[2020-04-17 22:08:36,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d2b5156a/c0b6e4153a354ca6bbd7a8369130948c/FLAG86a472923
[2020-04-17 22:08:37,027 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-17 22:08:37,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i
[2020-04-17 22:08:37,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d2b5156a/c0b6e4153a354ca6bbd7a8369130948c/FLAG86a472923
[2020-04-17 22:08:37,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d2b5156a/c0b6e4153a354ca6bbd7a8369130948c
[2020-04-17 22:08:37,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-17 22:08:37,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-17 22:08:37,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-17 22:08:37,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-17 22:08:37,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-17 22:08:37,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:08:37" (1/1) ...
[2020-04-17 22:08:37,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0b026d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:37, skipping insertion in model container
[2020-04-17 22:08:37,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:08:37" (1/1) ...
[2020-04-17 22:08:37,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-17 22:08:37,385 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-17 22:08:37,859 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:08:37,874 INFO L203 MainTranslator]: Completed pre-run
[2020-04-17 22:08:37,925 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 22:08:38,000 INFO L208 MainTranslator]: Completed translation
[2020-04-17 22:08:38,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38 WrapperNode
[2020-04-17 22:08:38,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-17 22:08:38,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-17 22:08:38,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-17 22:08:38,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-17 22:08:38,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-17 22:08:38,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-17 22:08:38,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-17 22:08:38,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-17 22:08:38,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (1/1) ...
[2020-04-17 22:08:38,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-17 22:08:38,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-17 22:08:38,093 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-17 22:08:38,093 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-17 22:08:38,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (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 22:08:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-17 22:08:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-17 22:08:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-17 22:08:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-17 22:08:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-17 22:08:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-17 22:08:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-17 22:08:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-17 22:08:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-17 22:08:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-17 22:08:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure P3
[2020-04-17 22:08:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P3
[2020-04-17 22:08:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-17 22:08:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-17 22:08:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-17 22:08:38,160 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 22:08:38,633 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-17 22:08:38,634 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-17 22:08:38,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:08:38 BoogieIcfgContainer
[2020-04-17 22:08:38,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-17 22:08:38,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-17 22:08:38,649 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-17 22:08:38,653 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-17 22:08:38,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:08:37" (1/3) ...
[2020-04-17 22:08:38,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ac801b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:08:38, skipping insertion in model container
[2020-04-17 22:08:38,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:08:38" (2/3) ...
[2020-04-17 22:08:38,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ac801b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:08:38, skipping insertion in model container
[2020-04-17 22:08:38,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:08:38" (3/3) ...
[2020-04-17 22:08:38,658 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i
[2020-04-17 22:08:38,669 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-17 22:08:38,670 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-17 22:08:38,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-17 22:08:38,682 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-17 22:08:38,716 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,717 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,717 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,717 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,718 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,718 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,719 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,719 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,719 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,720 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,720 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,720 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,721 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,721 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,722 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,722 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,722 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,723 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,723 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,723 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,724 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,724 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,724 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,725 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,730 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,730 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,731 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,731 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,739 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,739 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,740 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,740 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,743 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,743 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,744 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,747 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,747 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,747 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,748 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 22:08:38,766 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-04-17 22:08:38,789 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-17 22:08:38,790 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-17 22:08:38,790 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-17 22:08:38,790 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-17 22:08:38,790 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-17 22:08:38,791 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-17 22:08:38,791 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-17 22:08:38,791 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-17 22:08:38,810 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow
[2020-04-17 22:08:38,812 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow
[2020-04-17 22:08:38,862 INFO L129 PetriNetUnfolder]: 2/76 cut-off events.
[2020-04-17 22:08:38,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:08:38,869 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place.
[2020-04-17 22:08:38,873 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow
[2020-04-17 22:08:38,896 INFO L129 PetriNetUnfolder]: 2/76 cut-off events.
[2020-04-17 22:08:38,897 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 22:08:38,898 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place.
[2020-04-17 22:08:38,901 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822
[2020-04-17 22:08:38,902 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-17 22:08:40,896 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895
[2020-04-17 22:08:40,897 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62
[2020-04-17 22:08:40,901 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow
[2020-04-17 22:08:40,978 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states.
[2020-04-17 22:08:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states.
[2020-04-17 22:08:40,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-17 22:08:40,994 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:40,995 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:40,996 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:41,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:41,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times
[2020-04-17 22:08:41,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:41,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619291562]
[2020-04-17 22:08:41,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:41,229 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 22:08:41,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619291562]
[2020-04-17 22:08:41,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:41,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:08:41,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465116764]
[2020-04-17 22:08:41,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-17 22:08:41,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:41,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-17 22:08:41,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-17 22:08:41,256 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states.
[2020-04-17 22:08:41,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:41,315 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions.
[2020-04-17 22:08:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-04-17 22:08:41,317 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2020-04-17 22:08:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:41,345 INFO L225 Difference]: With dead ends: 850
[2020-04-17 22:08:41,345 INFO L226 Difference]: Without dead ends: 706
[2020-04-17 22:08:41,347 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 22:08:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states.
[2020-04-17 22:08:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706.
[2020-04-17 22:08:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states.
[2020-04-17 22:08:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions.
[2020-04-17 22:08:41,465 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10
[2020-04-17 22:08:41,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:41,466 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions.
[2020-04-17 22:08:41,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-17 22:08:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions.
[2020-04-17 22:08:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-17 22:08:41,469 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:41,470 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:41,470 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:41,470 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times
[2020-04-17 22:08:41,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:41,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533757313]
[2020-04-17 22:08:41,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:41,640 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 22:08:41,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533757313]
[2020-04-17 22:08:41,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:41,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:08:41,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242764510]
[2020-04-17 22:08:41,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:41,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:41,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:41,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:41,646 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states.
[2020-04-17 22:08:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:41,715 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions.
[2020-04-17 22:08:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:41,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2020-04-17 22:08:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:41,724 INFO L225 Difference]: With dead ends: 778
[2020-04-17 22:08:41,724 INFO L226 Difference]: Without dead ends: 634
[2020-04-17 22:08:41,727 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 22:08:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states.
[2020-04-17 22:08:41,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634.
[2020-04-17 22:08:41,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states.
[2020-04-17 22:08:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions.
[2020-04-17 22:08:41,776 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11
[2020-04-17 22:08:41,776 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:41,776 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions.
[2020-04-17 22:08:41,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions.
[2020-04-17 22:08:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-17 22:08:41,785 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:41,785 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:41,786 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:41,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1068447712, now seen corresponding path program 1 times
[2020-04-17 22:08:41,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:41,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073052090]
[2020-04-17 22:08:41,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:41,944 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 22:08:41,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073052090]
[2020-04-17 22:08:41,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:41,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:08:41,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047777008]
[2020-04-17 22:08:41,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:41,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:41,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:41,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:41,948 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states.
[2020-04-17 22:08:41,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:41,999 INFO L93 Difference]: Finished difference Result 718 states and 2351 transitions.
[2020-04-17 22:08:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-04-17 22:08:42,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,005 INFO L225 Difference]: With dead ends: 718
[2020-04-17 22:08:42,005 INFO L226 Difference]: Without dead ends: 610
[2020-04-17 22:08:42,006 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 22:08:42,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states.
[2020-04-17 22:08:42,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610.
[2020-04-17 22:08:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states.
[2020-04-17 22:08:42,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 2042 transitions.
[2020-04-17 22:08:42,028 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 2042 transitions. Word has length 12
[2020-04-17 22:08:42,029 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,029 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 2042 transitions.
[2020-04-17 22:08:42,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 2042 transitions.
[2020-04-17 22:08:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-04-17 22:08:42,032 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,032 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,032 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1923922428, now seen corresponding path program 1 times
[2020-04-17 22:08:42,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32492935]
[2020-04-17 22:08:42,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,127 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 22:08:42,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32492935]
[2020-04-17 22:08:42,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:08:42,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74437837]
[2020-04-17 22:08:42,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:42,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:42,134 INFO L87 Difference]: Start difference. First operand 610 states and 2042 transitions. Second operand 4 states.
[2020-04-17 22:08:42,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,176 INFO L93 Difference]: Finished difference Result 674 states and 2178 transitions.
[2020-04-17 22:08:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13
[2020-04-17 22:08:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,181 INFO L225 Difference]: With dead ends: 674
[2020-04-17 22:08:42,181 INFO L226 Difference]: Without dead ends: 578
[2020-04-17 22:08:42,182 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 22:08:42,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states.
[2020-04-17 22:08:42,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578.
[2020-04-17 22:08:42,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states.
[2020-04-17 22:08:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions.
[2020-04-17 22:08:42,203 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13
[2020-04-17 22:08:42,203 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,203 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions.
[2020-04-17 22:08:42,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:42,204 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions.
[2020-04-17 22:08:42,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-17 22:08:42,205 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,205 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,205 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,206 INFO L82 PathProgramCache]: Analyzing trace with hash -488944074, now seen corresponding path program 1 times
[2020-04-17 22:08:42,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336337730]
[2020-04-17 22:08:42,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,294 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 22:08:42,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336337730]
[2020-04-17 22:08:42,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 22:08:42,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939717405]
[2020-04-17 22:08:42,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:42,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:42,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:42,297 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 4 states.
[2020-04-17 22:08:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,324 INFO L93 Difference]: Finished difference Result 610 states and 1962 transitions.
[2020-04-17 22:08:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2020-04-17 22:08:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,329 INFO L225 Difference]: With dead ends: 610
[2020-04-17 22:08:42,329 INFO L226 Difference]: Without dead ends: 546
[2020-04-17 22:08:42,330 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 22:08:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states.
[2020-04-17 22:08:42,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546.
[2020-04-17 22:08:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states.
[2020-04-17 22:08:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 1786 transitions.
[2020-04-17 22:08:42,348 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 1786 transitions. Word has length 14
[2020-04-17 22:08:42,349 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,349 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 1786 transitions.
[2020-04-17 22:08:42,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:42,349 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 1786 transitions.
[2020-04-17 22:08:42,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:08:42,351 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,351 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,351 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1533442537, now seen corresponding path program 1 times
[2020-04-17 22:08:42,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97046226]
[2020-04-17 22:08:42,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,419 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 22:08:42,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97046226]
[2020-04-17 22:08:42,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:08:42,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809298794]
[2020-04-17 22:08:42,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:42,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:42,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:42,421 INFO L87 Difference]: Start difference. First operand 546 states and 1786 transitions. Second operand 4 states.
[2020-04-17 22:08:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,457 INFO L93 Difference]: Finished difference Result 794 states and 2462 transitions.
[2020-04-17 22:08:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15
[2020-04-17 22:08:42,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,462 INFO L225 Difference]: With dead ends: 794
[2020-04-17 22:08:42,462 INFO L226 Difference]: Without dead ends: 578
[2020-04-17 22:08:42,462 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 22:08:42,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states.
[2020-04-17 22:08:42,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 514.
[2020-04-17 22:08:42,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states.
[2020-04-17 22:08:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1598 transitions.
[2020-04-17 22:08:42,480 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1598 transitions. Word has length 15
[2020-04-17 22:08:42,480 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,480 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 1598 transitions.
[2020-04-17 22:08:42,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1598 transitions.
[2020-04-17 22:08:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:08:42,482 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,483 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,483 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,483 INFO L82 PathProgramCache]: Analyzing trace with hash 350267355, now seen corresponding path program 1 times
[2020-04-17 22:08:42,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937179183]
[2020-04-17 22:08:42,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,535 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 22:08:42,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937179183]
[2020-04-17 22:08:42,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:08:42,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329381120]
[2020-04-17 22:08:42,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:08:42,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:08:42,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:08:42,537 INFO L87 Difference]: Start difference. First operand 514 states and 1598 transitions. Second operand 5 states.
[2020-04-17 22:08:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,578 INFO L93 Difference]: Finished difference Result 802 states and 2456 transitions.
[2020-04-17 22:08:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-04-17 22:08:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,583 INFO L225 Difference]: With dead ends: 802
[2020-04-17 22:08:42,583 INFO L226 Difference]: Without dead ends: 466
[2020-04-17 22:08:42,583 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:08:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states.
[2020-04-17 22:08:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466.
[2020-04-17 22:08:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states.
[2020-04-17 22:08:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1400 transitions.
[2020-04-17 22:08:42,598 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1400 transitions. Word has length 15
[2020-04-17 22:08:42,599 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,599 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 1400 transitions.
[2020-04-17 22:08:42,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:08:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1400 transitions.
[2020-04-17 22:08:42,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:08:42,601 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,601 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,601 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1081767860, now seen corresponding path program 1 times
[2020-04-17 22:08:42,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111632745]
[2020-04-17 22:08:42,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,650 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 22:08:42,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111632745]
[2020-04-17 22:08:42,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:08:42,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663313004]
[2020-04-17 22:08:42,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:08:42,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:08:42,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:08:42,653 INFO L87 Difference]: Start difference. First operand 466 states and 1400 transitions. Second operand 5 states.
[2020-04-17 22:08:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,702 INFO L93 Difference]: Finished difference Result 662 states and 1956 transitions.
[2020-04-17 22:08:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-04-17 22:08:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,706 INFO L225 Difference]: With dead ends: 662
[2020-04-17 22:08:42,706 INFO L226 Difference]: Without dead ends: 326
[2020-04-17 22:08:42,707 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:08:42,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2020-04-17 22:08:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326.
[2020-04-17 22:08:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states.
[2020-04-17 22:08:42,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 955 transitions.
[2020-04-17 22:08:42,720 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 955 transitions. Word has length 15
[2020-04-17 22:08:42,723 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,724 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 955 transitions.
[2020-04-17 22:08:42,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:08:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 955 transitions.
[2020-04-17 22:08:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 22:08:42,732 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,732 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,732 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,733 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times
[2020-04-17 22:08:42,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704633415]
[2020-04-17 22:08:42,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,815 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 22:08:42,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704633415]
[2020-04-17 22:08:42,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:08:42,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512060526]
[2020-04-17 22:08:42,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:42,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:42,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:42,817 INFO L87 Difference]: Start difference. First operand 326 states and 955 transitions. Second operand 4 states.
[2020-04-17 22:08:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,854 INFO L93 Difference]: Finished difference Result 390 states and 1053 transitions.
[2020-04-17 22:08:42,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 22:08:42,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15
[2020-04-17 22:08:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,857 INFO L225 Difference]: With dead ends: 390
[2020-04-17 22:08:42,857 INFO L226 Difference]: Without dead ends: 293
[2020-04-17 22:08:42,858 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 22:08:42,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states.
[2020-04-17 22:08:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293.
[2020-04-17 22:08:42,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states.
[2020-04-17 22:08:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 804 transitions.
[2020-04-17 22:08:42,867 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 804 transitions. Word has length 15
[2020-04-17 22:08:42,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:42,868 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 804 transitions.
[2020-04-17 22:08:42,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:42,868 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 804 transitions.
[2020-04-17 22:08:42,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-04-17 22:08:42,869 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:42,869 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:42,869 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:42,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:42,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times
[2020-04-17 22:08:42,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:42,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517242218]
[2020-04-17 22:08:42,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:42,933 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 22:08:42,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517242218]
[2020-04-17 22:08:42,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:42,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:08:42,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711435042]
[2020-04-17 22:08:42,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:08:42,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:42,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:08:42,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:08:42,937 INFO L87 Difference]: Start difference. First operand 293 states and 804 transitions. Second operand 5 states.
[2020-04-17 22:08:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:42,990 INFO L93 Difference]: Finished difference Result 296 states and 728 transitions.
[2020-04-17 22:08:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:08:42,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16
[2020-04-17 22:08:42,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:42,993 INFO L225 Difference]: With dead ends: 296
[2020-04-17 22:08:42,993 INFO L226 Difference]: Without dead ends: 218
[2020-04-17 22:08:42,993 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 22:08:42,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2020-04-17 22:08:42,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218.
[2020-04-17 22:08:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states.
[2020-04-17 22:08:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 525 transitions.
[2020-04-17 22:08:43,000 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 525 transitions. Word has length 16
[2020-04-17 22:08:43,001 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:43,001 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 525 transitions.
[2020-04-17 22:08:43,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:08:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 525 transitions.
[2020-04-17 22:08:43,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-17 22:08:43,002 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:43,002 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:43,002 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:43,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times
[2020-04-17 22:08:43,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:43,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372924760]
[2020-04-17 22:08:43,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:43,050 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 22:08:43,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372924760]
[2020-04-17 22:08:43,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:43,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-04-17 22:08:43,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282403205]
[2020-04-17 22:08:43,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-17 22:08:43,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:43,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-17 22:08:43,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-17 22:08:43,053 INFO L87 Difference]: Start difference. First operand 218 states and 525 transitions. Second operand 6 states.
[2020-04-17 22:08:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:43,107 INFO L93 Difference]: Finished difference Result 196 states and 441 transitions.
[2020-04-17 22:08:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-04-17 22:08:43,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17
[2020-04-17 22:08:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:43,109 INFO L225 Difference]: With dead ends: 196
[2020-04-17 22:08:43,109 INFO L226 Difference]: Without dead ends: 157
[2020-04-17 22:08:43,110 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 22:08:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2020-04-17 22:08:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157.
[2020-04-17 22:08:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states.
[2020-04-17 22:08:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 352 transitions.
[2020-04-17 22:08:43,115 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 352 transitions. Word has length 17
[2020-04-17 22:08:43,115 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:43,116 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 352 transitions.
[2020-04-17 22:08:43,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-17 22:08:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 352 transitions.
[2020-04-17 22:08:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-17 22:08:43,117 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:43,117 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:43,117 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times
[2020-04-17 22:08:43,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:43,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962630534]
[2020-04-17 22:08:43,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:43,189 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 22:08:43,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962630534]
[2020-04-17 22:08:43,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:43,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 22:08:43,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846335439]
[2020-04-17 22:08:43,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 22:08:43,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:43,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 22:08:43,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 22:08:43,192 INFO L87 Difference]: Start difference. First operand 157 states and 352 transitions. Second operand 5 states.
[2020-04-17 22:08:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:43,227 INFO L93 Difference]: Finished difference Result 197 states and 430 transitions.
[2020-04-17 22:08:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-17 22:08:43,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19
[2020-04-17 22:08:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:43,229 INFO L225 Difference]: With dead ends: 197
[2020-04-17 22:08:43,229 INFO L226 Difference]: Without dead ends: 148
[2020-04-17 22:08:43,230 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:08:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states.
[2020-04-17 22:08:43,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144.
[2020-04-17 22:08:43,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states.
[2020-04-17 22:08:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 314 transitions.
[2020-04-17 22:08:43,235 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 314 transitions. Word has length 19
[2020-04-17 22:08:43,235 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:43,235 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 314 transitions.
[2020-04-17 22:08:43,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 22:08:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 314 transitions.
[2020-04-17 22:08:43,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-17 22:08:43,236 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:43,236 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:43,236 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:43,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:43,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times
[2020-04-17 22:08:43,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:43,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627598683]
[2020-04-17 22:08:43,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:43,295 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 22:08:43,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627598683]
[2020-04-17 22:08:43,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:43,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-04-17 22:08:43,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687613287]
[2020-04-17 22:08:43,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-17 22:08:43,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:43,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-17 22:08:43,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-04-17 22:08:43,298 INFO L87 Difference]: Start difference. First operand 144 states and 314 transitions. Second operand 7 states.
[2020-04-17 22:08:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:43,377 INFO L93 Difference]: Finished difference Result 133 states and 290 transitions.
[2020-04-17 22:08:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-04-17 22:08:43,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19
[2020-04-17 22:08:43,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:43,379 INFO L225 Difference]: With dead ends: 133
[2020-04-17 22:08:43,379 INFO L226 Difference]: Without dead ends: 52
[2020-04-17 22:08:43,380 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2020-04-17 22:08:43,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2020-04-17 22:08:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2020-04-17 22:08:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states.
[2020-04-17 22:08:43,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions.
[2020-04-17 22:08:43,384 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 19
[2020-04-17 22:08:43,385 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:43,385 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions.
[2020-04-17 22:08:43,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-17 22:08:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions.
[2020-04-17 22:08:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-04-17 22:08:43,386 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 22:08:43,387 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 22:08:43,387 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 22:08:43,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 22:08:43,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2139262285, now seen corresponding path program 1 times
[2020-04-17 22:08:43,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 22:08:43,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490645638]
[2020-04-17 22:08:43,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 22:08:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 22:08:43,451 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 22:08:43,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490645638]
[2020-04-17 22:08:43,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 22:08:43,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 22:08:43,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948136612]
[2020-04-17 22:08:43,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 22:08:43,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 22:08:43,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 22:08:43,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 22:08:43,454 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 4 states.
[2020-04-17 22:08:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 22:08:43,474 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions.
[2020-04-17 22:08:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-17 22:08:43,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21
[2020-04-17 22:08:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 22:08:43,475 INFO L225 Difference]: With dead ends: 51
[2020-04-17 22:08:43,475 INFO L226 Difference]: Without dead ends: 0
[2020-04-17 22:08:43,475 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 22:08:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-17 22:08:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-17 22:08:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-17 22:08:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-17 22:08:43,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21
[2020-04-17 22:08:43,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 22:08:43,476 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-17 22:08:43,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 22:08:43,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-17 22:08:43,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-17 22:08:43,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:08:43 BasicIcfg
[2020-04-17 22:08:43,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-17 22:08:43,485 INFO L168 Benchmark]: Toolchain (without parser) took 6175.17 ms. Allocated memory was 137.4 MB in the beginning and 291.0 MB in the end (delta: 153.6 MB). Free memory was 100.2 MB in the beginning and 157.4 MB in the end (delta: -57.2 MB). Peak memory consumption was 96.4 MB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,487 INFO L168 Benchmark]: CDTParser took 0.43 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: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.42 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.5 MB in the beginning and 158.1 MB in the end (delta: -59.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 201.9 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,498 INFO L168 Benchmark]: Boogie Preprocessor took 34.77 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,501 INFO L168 Benchmark]: RCFGBuilder took 552.16 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 130.3 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,502 INFO L168 Benchmark]: TraceAbstraction took 4833.84 ms. Allocated memory was 201.9 MB in the beginning and 291.0 MB in the end (delta: 89.1 MB). Free memory was 130.3 MB in the beginning and 157.4 MB in the end (delta: -27.1 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB.
[2020-04-17 22:08:43,509 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.43 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: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 672.42 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.5 MB in the beginning and 158.1 MB in the end (delta: -59.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 201.9 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 34.77 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 552.16 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 130.3 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 4833.84 ms. Allocated memory was 201.9 MB in the beginning and 291.0 MB in the end (delta: 89.1 MB). Free memory was 130.3 MB in the beginning and 157.4 MB in the end (delta: -27.1 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 2.0s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 953 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 32 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 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 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 370 SDtfs, 330 SDslu, 614 SDs, 0 SdLazy, 242 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 68 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 8248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...