/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:56:56,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:56:56,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:56:56,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:56:56,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:56:56,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:56:56,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:56:56,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:56:56,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:56:56,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:56:56,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:56:56,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:56:56,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:56:56,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:56:56,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:56:56,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:56:56,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:56:56,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:56:56,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:56:56,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:56:56,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:56:56,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:56:56,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:56:56,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:56:56,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:56:56,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:56:56,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:56:56,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:56:56,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:56:56,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:56:56,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:56:56,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:56:56,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:56:56,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:56:56,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:56:56,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:56:56,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:56:56,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:56:56,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:56:56,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:56:56,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:56:56,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 15:56:56,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:56:56,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:56:56,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:56:56,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:56:56,094 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:56:56,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:56:56,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:56:56,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:56:56,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:56:56,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:56:56,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:56:56,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:56:56,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:56:56,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:56:56,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:56:56,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:56:56,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:56:56,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:56:56,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:56:56,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:56:56,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:56:56,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:56:56,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:56:56,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:56:56,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:56:56,099 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:56:56,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:56:56,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:56:56,100 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:56:56,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:56:56,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:56:56,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:56:56,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:56:56,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:56:56,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:56:56,422 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:56:56,423 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2020-04-18 15:56:56,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2f8e641/be2716da949d4416a3a6f7f62cae8703/FLAG8aa98af16 [2020-04-18 15:56:57,124 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:56:57,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2020-04-18 15:56:57,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2f8e641/be2716da949d4416a3a6f7f62cae8703/FLAG8aa98af16 [2020-04-18 15:56:57,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2f8e641/be2716da949d4416a3a6f7f62cae8703 [2020-04-18 15:56:57,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:56:57,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:56:57,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:56:57,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:56:57,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:56:57,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:56:57" (1/1) ... [2020-04-18 15:56:57,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0eb770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:57, skipping insertion in model container [2020-04-18 15:56:57,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:56:57" (1/1) ... [2020-04-18 15:56:57,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:56:57,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:56:57,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-04-18 15:56:58,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:56:58,034 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:56:58,060 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-04-18 15:56:58,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:56:58,202 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:56:58,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58 WrapperNode [2020-04-18 15:56:58,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:56:58,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:56:58,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:56:58,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:56:58,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:56:58,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:56:58,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:56:58,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:56:58,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... [2020-04-18 15:56:58,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:56:58,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:56:58,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:56:58,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:56:58,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:56:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2020-04-18 15:56:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2020-04-18 15:56:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:56:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:56:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 15:56:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:56:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:56:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:56:58,399 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 15:56:58,896 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:56:58,896 INFO L295 CfgBuilder]: Removed 19 assume(true) statements. [2020-04-18 15:56:58,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:58 BoogieIcfgContainer [2020-04-18 15:56:58,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:56:58,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:56:58,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:56:58,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:56:58,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:56:57" (1/3) ... [2020-04-18 15:56:58,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bb8531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:56:58, skipping insertion in model container [2020-04-18 15:56:58,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:58" (2/3) ... [2020-04-18 15:56:58,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bb8531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:56:58, skipping insertion in model container [2020-04-18 15:56:58,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:58" (3/3) ... [2020-04-18 15:56:58,909 INFO L109 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2020-04-18 15:56:58,919 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:56:58,920 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:56:58,928 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-04-18 15:56:58,929 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:56:58,958 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,959 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,959 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,959 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,959 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,960 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,960 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,960 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,960 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,961 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,961 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,961 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,962 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,962 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,962 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,962 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,963 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,963 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,963 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,963 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,964 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,964 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,964 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,964 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,965 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,965 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,965 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,965 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,965 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,966 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,966 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,966 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,966 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,967 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,967 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,967 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,967 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,968 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,968 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,968 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,968 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,969 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,969 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,969 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,969 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,970 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,970 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,970 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,970 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,971 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,971 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,971 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,971 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,972 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,972 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,972 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,972 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,973 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,973 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,973 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,973 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,974 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,974 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,974 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,974 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,975 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,975 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,975 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,975 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,976 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,976 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,976 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,977 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,977 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,977 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,977 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,978 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,978 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,978 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,978 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,979 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,979 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,979 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,980 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,980 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,980 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,980 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,980 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,981 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,981 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,981 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,981 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,982 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,982 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,982 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,982 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,983 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,983 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,983 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,983 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,984 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,984 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,984 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,984 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,985 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,985 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,985 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,985 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,986 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,986 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,986 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,987 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,987 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,987 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,987 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,988 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,988 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,988 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,988 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,988 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,989 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,989 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,989 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,990 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,990 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,990 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,991 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,991 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,995 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,995 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,996 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,996 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,996 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,996 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,997 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,997 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,997 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,997 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,998 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,998 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,998 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,998 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,998 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,999 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,999 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,999 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:58,999 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,000 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,000 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,000 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,000 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,001 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,001 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,001 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,001 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,002 WARN L315 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,002 WARN L315 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:56:59,023 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 15:56:59,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:56:59,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:56:59,044 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:56:59,044 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:56:59,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:56:59,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:56:59,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:56:59,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:56:59,063 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 128 transitions, 264 flow [2020-04-18 15:56:59,065 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 122 places, 128 transitions, 264 flow [2020-04-18 15:56:59,146 INFO L129 PetriNetUnfolder]: 10/127 cut-off events. [2020-04-18 15:56:59,146 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-04-18 15:56:59,152 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 127 events. 10/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 245 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2020-04-18 15:56:59,158 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 122 places, 128 transitions, 264 flow [2020-04-18 15:56:59,184 INFO L129 PetriNetUnfolder]: 10/127 cut-off events. [2020-04-18 15:56:59,184 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-04-18 15:56:59,186 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 127 events. 10/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 245 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2020-04-18 15:56:59,191 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4968 [2020-04-18 15:56:59,192 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:57:01,306 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-04-18 15:57:01,786 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5914 [2020-04-18 15:57:01,786 INFO L214 etLargeBlockEncoding]: Total number of compositions: 112 [2020-04-18 15:57:01,790 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 34 transitions, 76 flow [2020-04-18 15:57:01,802 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 139 states. [2020-04-18 15:57:01,805 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-04-18 15:57:01,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:57:01,811 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:01,812 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 15:57:01,813 INFO L427 AbstractCegarLoop]: === Iteration 1 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:01,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:01,819 INFO L82 PathProgramCache]: Analyzing trace with hash 485339031, now seen corresponding path program 1 times [2020-04-18 15:57:01,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:01,827 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1911953897] [2020-04-18 15:57:01,843 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:01,856 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:57:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 15:57:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 15:57:01,858 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:01,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:01,859 INFO L82 PathProgramCache]: Analyzing trace with hash 485339031, now seen corresponding path program 2 times [2020-04-18 15:57:01,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:01,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811146271] [2020-04-18 15:57:01,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:02,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811146271] [2020-04-18 15:57:02,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:02,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:57:02,008 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:02,009 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:02,010 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 15:57:02,010 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:02,014 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:57:02,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:57:02,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:57:02,020 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2020-04-18 15:57:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:02,023 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:57:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 15:57:02,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:02,024 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1911953897] [2020-04-18 15:57:02,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:02,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:57:02,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1911953897] [2020-04-18 15:57:02,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:57:02,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:02,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:57:02,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:57:02,032 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 2 states. [2020-04-18 15:57:02,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:02,043 INFO L93 Difference]: Finished difference Result 139 states and 298 transitions. [2020-04-18 15:57:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:57:02,044 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-04-18 15:57:02,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:57:02,057 INFO L225 Difference]: With dead ends: 139 [2020-04-18 15:57:02,057 INFO L226 Difference]: Without dead ends: 128 [2020-04-18 15:57:02,058 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:57:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-18 15:57:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-18 15:57:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-18 15:57:02,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 277 transitions. [2020-04-18 15:57:02,124 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 277 transitions. Word has length 5 [2020-04-18 15:57:02,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:57:02,125 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 277 transitions. [2020-04-18 15:57:02,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:57:02,125 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 277 transitions. [2020-04-18 15:57:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:57:02,125 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:02,126 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 15:57:02,126 INFO L427 AbstractCegarLoop]: === Iteration 2 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:02,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2134363384, now seen corresponding path program 1 times [2020-04-18 15:57:02,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:02,127 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [55922328] [2020-04-18 15:57:02,127 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:02,128 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:57:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 15:57:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:57:02,128 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:02,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2134363384, now seen corresponding path program 2 times [2020-04-18 15:57:02,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:02,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782196526] [2020-04-18 15:57:02,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:02,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782196526] [2020-04-18 15:57:02,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:02,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:57:02,206 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:02,207 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:02,208 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:57:02,208 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:02,214 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:57:02,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:57:02,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:57:02,215 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 15:57:02,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:02,217 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 15:57:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 15:57:02,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:02,218 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [55922328] [2020-04-18 15:57:02,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:02,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:57:02,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [55922328] [2020-04-18 15:57:02,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:57:02,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:02,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:57:02,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:57:02,220 INFO L87 Difference]: Start difference. First operand 128 states and 277 transitions. Second operand 3 states. [2020-04-18 15:57:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:02,241 INFO L93 Difference]: Finished difference Result 200 states and 438 transitions. [2020-04-18 15:57:02,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:57:02,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 15:57:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:57:02,244 INFO L225 Difference]: With dead ends: 200 [2020-04-18 15:57:02,244 INFO L226 Difference]: Without dead ends: 200 [2020-04-18 15:57:02,246 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:57:02,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-04-18 15:57:02,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 155. [2020-04-18 15:57:02,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-04-18 15:57:02,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 343 transitions. [2020-04-18 15:57:02,271 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 343 transitions. Word has length 6 [2020-04-18 15:57:02,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:57:02,272 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 343 transitions. [2020-04-18 15:57:02,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:57:02,272 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 343 transitions. [2020-04-18 15:57:02,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:57:02,276 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:02,276 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:57:02,277 INFO L427 AbstractCegarLoop]: === Iteration 3 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:02,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1264596255, now seen corresponding path program 1 times [2020-04-18 15:57:02,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:02,278 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1003947468] [2020-04-18 15:57:02,278 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:02,279 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 15:57:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-04-18 15:57:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:57:02,287 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:02,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:02,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1264596255, now seen corresponding path program 2 times [2020-04-18 15:57:02,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:02,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472502219] [2020-04-18 15:57:02,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:02,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472502219] [2020-04-18 15:57:02,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:02,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 15:57:02,503 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:02,504 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:02,505 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 15:57:02,506 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:02,564 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:57:02,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:57:02,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:57:02,565 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 7 states. [2020-04-18 15:57:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:02,665 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-04-18 15:57:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-04-18 15:57:02,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:02,666 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1003947468] [2020-04-18 15:57:02,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:02,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 15:57:02,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1003947468] [2020-04-18 15:57:02,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 15:57:02,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:02,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:57:02,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-04-18 15:57:02,668 INFO L87 Difference]: Start difference. First operand 155 states and 343 transitions. Second operand 7 states. [2020-04-18 15:57:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:02,956 INFO L93 Difference]: Finished difference Result 181 states and 391 transitions. [2020-04-18 15:57:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 15:57:02,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-04-18 15:57:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:57:02,959 INFO L225 Difference]: With dead ends: 181 [2020-04-18 15:57:02,959 INFO L226 Difference]: Without dead ends: 162 [2020-04-18 15:57:02,960 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-04-18 15:57:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-04-18 15:57:02,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-04-18 15:57:02,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-04-18 15:57:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 359 transitions. [2020-04-18 15:57:02,977 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 359 transitions. Word has length 10 [2020-04-18 15:57:02,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:57:02,977 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 359 transitions. [2020-04-18 15:57:02,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 15:57:02,977 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 359 transitions. [2020-04-18 15:57:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 15:57:02,978 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:02,979 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:57:02,979 INFO L427 AbstractCegarLoop]: === Iteration 4 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:02,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:02,979 INFO L82 PathProgramCache]: Analyzing trace with hash -328941052, now seen corresponding path program 1 times [2020-04-18 15:57:02,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:02,980 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1715288501] [2020-04-18 15:57:02,980 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:02,982 INFO L259 McrAutomatonBuilder]: Finished intersection with 65 states and 112 transitions. [2020-04-18 15:57:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-04-18 15:57:02,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 15:57:02,984 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:02,984 INFO L82 PathProgramCache]: Analyzing trace with hash -328941052, now seen corresponding path program 2 times [2020-04-18 15:57:02,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:02,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312604746] [2020-04-18 15:57:02,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:03,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312604746] [2020-04-18 15:57:03,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:03,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 15:57:03,489 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:03,492 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:03,497 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 40 transitions. [2020-04-18 15:57:03,498 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:03,924 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 15:57:03,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 15:57:03,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:57:03,925 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 19 states. [2020-04-18 15:57:06,060 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2020-04-18 15:57:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:06,292 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2020-04-18 15:57:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2020-04-18 15:57:06,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:06,293 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1715288501] [2020-04-18 15:57:06,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:06,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-04-18 15:57:06,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1715288501] [2020-04-18 15:57:06,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 15:57:06,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:06,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 15:57:06,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=1048, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 15:57:06,297 INFO L87 Difference]: Start difference. First operand 162 states and 359 transitions. Second operand 19 states. [2020-04-18 15:57:07,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:07,126 INFO L93 Difference]: Finished difference Result 180 states and 384 transitions. [2020-04-18 15:57:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 15:57:07,126 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 16 [2020-04-18 15:57:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:57:07,129 INFO L225 Difference]: With dead ends: 180 [2020-04-18 15:57:07,129 INFO L226 Difference]: Without dead ends: 170 [2020-04-18 15:57:07,131 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=358, Invalid=1048, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 15:57:07,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-04-18 15:57:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-04-18 15:57:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-04-18 15:57:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 371 transitions. [2020-04-18 15:57:07,143 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 371 transitions. Word has length 16 [2020-04-18 15:57:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:57:07,143 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 371 transitions. [2020-04-18 15:57:07,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 15:57:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 371 transitions. [2020-04-18 15:57:07,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:57:07,145 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:07,145 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:57:07,145 INFO L427 AbstractCegarLoop]: === Iteration 5 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:07,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:07,145 INFO L82 PathProgramCache]: Analyzing trace with hash -960067854, now seen corresponding path program 1 times [2020-04-18 15:57:07,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:07,146 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1940388022] [2020-04-18 15:57:07,147 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:07,148 INFO L259 McrAutomatonBuilder]: Finished intersection with 83 states and 146 transitions. [2020-04-18 15:57:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-04-18 15:57:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:57:07,150 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:07,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash -960067854, now seen corresponding path program 2 times [2020-04-18 15:57:07,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:07,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653447573] [2020-04-18 15:57:07,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:07,803 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2020-04-18 15:57:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:08,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653447573] [2020-04-18 15:57:08,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:08,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-04-18 15:57:08,120 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:08,123 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:08,131 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 50 transitions. [2020-04-18 15:57:08,131 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:08,855 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 13 times. [2020-04-18 15:57:08,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 15:57:08,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2020-04-18 15:57:08,857 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 23 states. [2020-04-18 15:57:10,830 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2020-04-18 15:57:11,271 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-04-18 15:57:12,051 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-04-18 15:57:12,414 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-04-18 15:57:12,618 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-04-18 15:57:13,009 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2020-04-18 15:57:13,273 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2020-04-18 15:57:13,745 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2020-04-18 15:57:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:14,212 INFO L93 Difference]: Finished difference Result 95 states and 163 transitions. [2020-04-18 15:57:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 163 transitions. [2020-04-18 15:57:14,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:57:14,214 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:57:14,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:14,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1045248350, now seen corresponding path program 3 times [2020-04-18 15:57:14,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:14,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267928045] [2020-04-18 15:57:14,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:14,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267928045] [2020-04-18 15:57:14,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:14,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 15:57:14,362 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:14,364 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:14,374 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 78 transitions. [2020-04-18 15:57:14,374 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:16,017 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 18 times. [2020-04-18 15:57:16,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 15:57:16,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=594, Invalid=3828, Unknown=0, NotChecked=0, Total=4422 [2020-04-18 15:57:16,020 INFO L87 Difference]: Start difference. First operand 95 states and 163 transitions. Second operand 23 states. [2020-04-18 15:57:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:18,023 INFO L93 Difference]: Finished difference Result 110 states and 185 transitions. [2020-04-18 15:57:18,023 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 185 transitions. [2020-04-18 15:57:18,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:18,025 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1940388022] [2020-04-18 15:57:18,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:18,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 15:57:18,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1940388022] [2020-04-18 15:57:18,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-04-18 15:57:18,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:18,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-04-18 15:57:18,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=830, Invalid=5332, Unknown=0, NotChecked=0, Total=6162 [2020-04-18 15:57:18,028 INFO L87 Difference]: Start difference. First operand 170 states and 371 transitions. Second operand 44 states. [2020-04-18 15:57:18,935 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2020-04-18 15:57:19,238 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 51 [2020-04-18 15:57:19,734 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 51 [2020-04-18 15:57:20,087 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 54 [2020-04-18 15:57:20,587 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 59 [2020-04-18 15:57:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:23,316 INFO L93 Difference]: Finished difference Result 249 states and 533 transitions. [2020-04-18 15:57:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-04-18 15:57:23,317 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 18 [2020-04-18 15:57:23,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:57:23,319 INFO L225 Difference]: With dead ends: 249 [2020-04-18 15:57:23,320 INFO L226 Difference]: Without dead ends: 249 [2020-04-18 15:57:23,323 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1159, Invalid=7397, Unknown=0, NotChecked=0, Total=8556 [2020-04-18 15:57:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-04-18 15:57:23,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 222. [2020-04-18 15:57:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-04-18 15:57:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 489 transitions. [2020-04-18 15:57:23,334 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 489 transitions. Word has length 18 [2020-04-18 15:57:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:57:23,336 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 489 transitions. [2020-04-18 15:57:23,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-04-18 15:57:23,336 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 489 transitions. [2020-04-18 15:57:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 15:57:23,340 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:23,340 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:57:23,341 INFO L427 AbstractCegarLoop]: === Iteration 6 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:23,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1193789261, now seen corresponding path program 1 times [2020-04-18 15:57:23,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:23,342 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1217879630] [2020-04-18 15:57:23,347 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:23,348 INFO L259 McrAutomatonBuilder]: Finished intersection with 110 states and 197 transitions. [2020-04-18 15:57:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2020-04-18 15:57:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 15:57:23,352 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:23,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1193789261, now seen corresponding path program 2 times [2020-04-18 15:57:23,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:23,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946059471] [2020-04-18 15:57:23,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:23,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946059471] [2020-04-18 15:57:23,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631111462] [2020-04-18 15:57:23,418 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:57:23,507 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:57:23,508 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:57:23,510 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2020-04-18 15:57:23,516 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:57:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:23,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:57:23,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-04-18 15:57:23,530 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:23,533 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:23,539 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-04-18 15:57:23,539 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:23,548 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:57:23,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:57:23,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:57:23,549 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 4 states. [2020-04-18 15:57:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:23,556 INFO L93 Difference]: Finished difference Result 110 states and 197 transitions. [2020-04-18 15:57:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 197 transitions. [2020-04-18 15:57:23,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:23,557 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1217879630] [2020-04-18 15:57:23,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:23,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:57:23,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1217879630] [2020-04-18 15:57:23,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:57:23,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:23,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:57:23,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:57:23,559 INFO L87 Difference]: Start difference. First operand 222 states and 489 transitions. Second operand 4 states. [2020-04-18 15:57:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:23,581 INFO L93 Difference]: Finished difference Result 326 states and 718 transitions. [2020-04-18 15:57:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:57:23,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-04-18 15:57:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:57:23,584 INFO L225 Difference]: With dead ends: 326 [2020-04-18 15:57:23,584 INFO L226 Difference]: Without dead ends: 326 [2020-04-18 15:57:23,585 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:57:23,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-04-18 15:57:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 278. [2020-04-18 15:57:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-04-18 15:57:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 624 transitions. [2020-04-18 15:57:23,597 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 624 transitions. Word has length 21 [2020-04-18 15:57:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:57:23,598 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 624 transitions. [2020-04-18 15:57:23,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:57:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 624 transitions. [2020-04-18 15:57:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 15:57:23,599 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:57:23,599 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:57:23,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:57:23,812 INFO L427 AbstractCegarLoop]: === Iteration 7 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:57:23,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 554824476, now seen corresponding path program 4 times [2020-04-18 15:57:23,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:57:23,813 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [120622078] [2020-04-18 15:57:23,813 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:23,815 INFO L259 McrAutomatonBuilder]: Finished intersection with 128 states and 231 transitions. [2020-04-18 15:57:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-04-18 15:57:23,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 15:57:23,818 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:57:23,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:23,818 INFO L82 PathProgramCache]: Analyzing trace with hash 554824476, now seen corresponding path program 5 times [2020-04-18 15:57:23,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:23,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518130199] [2020-04-18 15:57:23,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:24,387 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 32 [2020-04-18 15:57:24,627 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 50 [2020-04-18 15:57:24,805 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-04-18 15:57:24,990 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-04-18 15:57:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:25,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518130199] [2020-04-18 15:57:25,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711528747] [2020-04-18 15:57:25,542 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:57:25,623 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:57:25,624 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:57:25,628 WARN L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 94 conjunts are in the unsatisfiable core [2020-04-18 15:57:25,630 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:57:25,683 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2020-04-18 15:57:25,684 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:25,710 INFO L619 ElimStorePlain]: treesize reduction 13, result has 77.6 percent of original size [2020-04-18 15:57:25,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:25,724 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-04-18 15:57:25,724 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:25,753 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:25,754 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 15:57:25,754 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:52, output treesize:31 [2020-04-18 15:57:26,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,412 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 15:57:26,440 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:26,441 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-04-18 15:57:26,445 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:26,558 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-04-18 15:57:26,558 INFO L619 ElimStorePlain]: treesize reduction 46, result has 54.5 percent of original size [2020-04-18 15:57:26,559 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 15:57:26,560 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:55 [2020-04-18 15:57:26,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:57:26,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:57:26,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,723 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,739 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,742 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-04-18 15:57:26,744 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:26,759 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,763 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,783 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,786 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2020-04-18 15:57:26,787 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:26,794 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,795 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,797 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:57:26,799 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-04-18 15:57:26,800 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:26,819 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:26,820 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 15:57:26,820 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:269, output treesize:49 [2020-04-18 15:57:27,080 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:27,081 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 103 [2020-04-18 15:57:27,083 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:27,097 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:27,098 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 15:57:27,099 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:39 [2020-04-18 15:57:27,278 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:27,278 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 47 [2020-04-18 15:57:27,279 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:57:27,284 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:57:27,285 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 15:57:27,285 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:7 [2020-04-18 15:57:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:57:27,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:57:27,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 34 [2020-04-18 15:57:27,377 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:27,381 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:27,393 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 75 transitions. [2020-04-18 15:57:27,393 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:31,157 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 40 times. [2020-04-18 15:57:31,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-04-18 15:57:31,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2999, Unknown=0, NotChecked=0, Total=3192 [2020-04-18 15:57:31,159 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 57 states. [2020-04-18 15:57:33,044 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-04-18 15:57:34,346 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 52 [2020-04-18 15:57:35,340 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 57 [2020-04-18 15:57:35,632 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 48 [2020-04-18 15:57:36,324 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 62 [2020-04-18 15:57:38,789 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 70 [2020-04-18 15:57:39,850 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 74 [2020-04-18 15:57:40,179 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 72 [2020-04-18 15:57:41,428 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 76 [2020-04-18 15:57:42,172 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 61 [2020-04-18 15:57:43,213 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2020-04-18 15:57:43,640 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-04-18 15:57:43,989 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 66 [2020-04-18 15:57:45,076 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2020-04-18 15:57:46,058 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2020-04-18 15:57:46,700 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2020-04-18 15:57:47,230 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 15:57:47,947 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-04-18 15:57:48,378 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2020-04-18 15:57:48,879 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-04-18 15:57:49,184 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-04-18 15:57:49,706 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-04-18 15:57:51,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:51,033 INFO L93 Difference]: Finished difference Result 172 states and 305 transitions. [2020-04-18 15:57:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 305 transitions. [2020-04-18 15:57:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 15:57:51,034 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:57:51,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:57:51,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1379197468, now seen corresponding path program 6 times [2020-04-18 15:57:51,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:57:51,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557601226] [2020-04-18 15:57:51,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:57:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:57:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 15:57:51,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557601226] [2020-04-18 15:57:51,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:57:51,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 15:57:51,187 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:57:51,190 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:57:51,199 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 83 transitions. [2020-04-18 15:57:51,199 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:57:53,373 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 15:57:53,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 15:57:53,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1329, Invalid=11553, Unknown=0, NotChecked=0, Total=12882 [2020-04-18 15:57:53,376 INFO L87 Difference]: Start difference. First operand 172 states and 305 transitions. Second operand 19 states. [2020-04-18 15:57:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:57:55,390 INFO L93 Difference]: Finished difference Result 224 states and 394 transitions. [2020-04-18 15:57:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 394 transitions. [2020-04-18 15:57:55,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:57:55,391 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [120622078] [2020-04-18 15:57:55,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:57:55,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 15:57:55,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [120622078] [2020-04-18 15:57:55,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-04-18 15:57:55,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:57:55,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-04-18 15:57:55,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1530, Invalid=13970, Unknown=0, NotChecked=0, Total=15500 [2020-04-18 15:57:55,396 INFO L87 Difference]: Start difference. First operand 278 states and 624 transitions. Second operand 74 states. [2020-04-18 15:57:56,217 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 48 [2020-04-18 15:57:56,670 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 55 [2020-04-18 15:57:57,098 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 60 [2020-04-18 15:57:57,791 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 61 [2020-04-18 15:57:58,304 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 66 [2020-04-18 15:57:58,675 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-04-18 15:57:59,072 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 70 [2020-04-18 15:57:59,411 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-04-18 15:58:00,811 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2020-04-18 15:58:01,360 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2020-04-18 15:58:01,989 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-04-18 15:58:04,425 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-04-18 15:58:05,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:58:05,705 INFO L93 Difference]: Finished difference Result 432 states and 902 transitions. [2020-04-18 15:58:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-04-18 15:58:05,706 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 23 [2020-04-18 15:58:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:58:05,710 INFO L225 Difference]: With dead ends: 432 [2020-04-18 15:58:05,710 INFO L226 Difference]: Without dead ends: 424 [2020-04-18 15:58:05,714 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6931 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=2181, Invalid=20469, Unknown=0, NotChecked=0, Total=22650 [2020-04-18 15:58:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-04-18 15:58:05,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 330. [2020-04-18 15:58:05,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-04-18 15:58:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 735 transitions. [2020-04-18 15:58:05,726 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 735 transitions. Word has length 23 [2020-04-18 15:58:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:58:05,727 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 735 transitions. [2020-04-18 15:58:05,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-04-18 15:58:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 735 transitions. [2020-04-18 15:58:05,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 15:58:05,732 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:58:05,732 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:58:05,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:58:05,936 INFO L427 AbstractCegarLoop]: === Iteration 8 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:58:05,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:58:05,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1265695988, now seen corresponding path program 1 times [2020-04-18 15:58:05,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:58:05,937 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1810974991] [2020-04-18 15:58:05,938 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:58:05,939 INFO L259 McrAutomatonBuilder]: Finished intersection with 146 states and 265 transitions. [2020-04-18 15:58:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-04-18 15:58:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 15:58:05,941 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:58:05,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:58:05,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1265695988, now seen corresponding path program 2 times [2020-04-18 15:58:05,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:58:05,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342444997] [2020-04-18 15:58:05,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:58:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:58:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:58:06,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342444997] [2020-04-18 15:58:06,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416409961] [2020-04-18 15:58:06,973 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:58:07,054 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:58:07,055 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:58:07,057 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 78 conjunts are in the unsatisfiable core [2020-04-18 15:58:07,060 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:58:07,073 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2020-04-18 15:58:07,074 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,090 INFO L619 ElimStorePlain]: treesize reduction 13, result has 77.6 percent of original size [2020-04-18 15:58:07,095 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:07,096 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-04-18 15:58:07,097 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,106 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:07,107 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:07,108 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:31 [2020-04-18 15:58:07,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:07,418 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:07,419 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-04-18 15:58:07,420 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,459 INFO L619 ElimStorePlain]: treesize reduction 46, result has 50.0 percent of original size [2020-04-18 15:58:07,460 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:07,460 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:37 [2020-04-18 15:58:07,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:07,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:07,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:07,537 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2020-04-18 15:58:07,538 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,547 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:07,553 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2020-04-18 15:58:07,554 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,559 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 50 [2020-04-18 15:58:07,560 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,569 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:07,570 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:07,570 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:189, output treesize:29 [2020-04-18 15:58:07,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:07,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:07,734 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 15:58:07,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:07,740 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2020-04-18 15:58:07,741 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,758 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 15:58:07,760 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:07,764 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2020-04-18 15:58:07,765 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,772 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 50 [2020-04-18 15:58:07,773 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:07,782 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:07,782 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:07,783 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:189, output treesize:29 [2020-04-18 15:58:07,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:58:07,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:58:07,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 30 [2020-04-18 15:58:07,904 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:58:07,907 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:58:07,913 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-04-18 15:58:07,914 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:58:09,507 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 20 times. [2020-04-18 15:58:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-04-18 15:58:09,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1564, Unknown=0, NotChecked=0, Total=1722 [2020-04-18 15:58:09,508 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 42 states. [2020-04-18 15:58:11,487 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2020-04-18 15:58:12,152 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2020-04-18 15:58:13,032 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2020-04-18 15:58:13,501 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 55 [2020-04-18 15:58:14,649 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 55 [2020-04-18 15:58:15,253 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 47 [2020-04-18 15:58:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:58:16,316 INFO L93 Difference]: Finished difference Result 154 states and 273 transitions. [2020-04-18 15:58:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 273 transitions. [2020-04-18 15:58:16,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:58:16,317 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1810974991] [2020-04-18 15:58:16,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:58:16,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-04-18 15:58:16,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1810974991] [2020-04-18 15:58:16,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-04-18 15:58:16,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:58:16,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-04-18 15:58:16,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=4488, Unknown=0, NotChecked=0, Total=5256 [2020-04-18 15:58:16,319 INFO L87 Difference]: Start difference. First operand 330 states and 735 transitions. Second operand 42 states. [2020-04-18 15:58:18,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:58:18,183 INFO L93 Difference]: Finished difference Result 381 states and 825 transitions. [2020-04-18 15:58:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-04-18 15:58:18,188 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 25 [2020-04-18 15:58:18,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:58:18,191 INFO L225 Difference]: With dead ends: 381 [2020-04-18 15:58:18,191 INFO L226 Difference]: Without dead ends: 354 [2020-04-18 15:58:18,191 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1159 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=768, Invalid=4488, Unknown=0, NotChecked=0, Total=5256 [2020-04-18 15:58:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-04-18 15:58:18,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2020-04-18 15:58:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-04-18 15:58:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 769 transitions. [2020-04-18 15:58:18,201 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 769 transitions. Word has length 25 [2020-04-18 15:58:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:58:18,202 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 769 transitions. [2020-04-18 15:58:18,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-04-18 15:58:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 769 transitions. [2020-04-18 15:58:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 15:58:18,203 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:58:18,203 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:58:18,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:58:18,410 INFO L427 AbstractCegarLoop]: === Iteration 9 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 15:58:18,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:58:18,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1770531068, now seen corresponding path program 7 times [2020-04-18 15:58:18,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:58:18,411 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [425164440] [2020-04-18 15:58:18,413 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:58:18,415 INFO L259 McrAutomatonBuilder]: Finished intersection with 191 states and 350 transitions. [2020-04-18 15:58:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2020-04-18 15:58:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 15:58:18,416 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:58:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:58:18,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1770531068, now seen corresponding path program 8 times [2020-04-18 15:58:18,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:58:18,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345773580] [2020-04-18 15:58:18,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:58:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:58:19,242 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 49 [2020-04-18 15:58:19,382 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2020-04-18 15:58:19,524 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2020-04-18 15:58:19,887 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-04-18 15:58:20,081 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2020-04-18 15:58:20,230 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-04-18 15:58:20,378 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2020-04-18 15:58:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:58:21,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345773580] [2020-04-18 15:58:21,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976698144] [2020-04-18 15:58:21,035 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 15:58:21,114 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 15:58:21,114 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 15:58:21,116 WARN L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 116 conjunts are in the unsatisfiable core [2020-04-18 15:58:21,119 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 15:58:21,131 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2020-04-18 15:58:21,131 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-04-18 15:58:21,166 INFO L619 ElimStorePlain]: treesize reduction 14, result has 76.3 percent of original size [2020-04-18 15:58:21,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:21,172 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-04-18 15:58:21,172 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:21,183 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:21,184 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:21,184 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:31 [2020-04-18 15:58:21,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:21,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:21,886 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 15:58:21,909 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:21,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-04-18 15:58:21,911 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:21,959 INFO L619 ElimStorePlain]: treesize reduction 46, result has 54.5 percent of original size [2020-04-18 15:58:21,960 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:21,960 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:55 [2020-04-18 15:58:22,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:22,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:22,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,169 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-04-18 15:58:22,169 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:22,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,197 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,199 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-04-18 15:58:22,200 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:22,205 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,207 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,208 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2020-04-18 15:58:22,209 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:22,235 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:22,236 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:22,236 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:269, output treesize:49 [2020-04-18 15:58:22,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,714 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,714 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 15:58:22,752 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:22,752 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 120 [2020-04-18 15:58:22,754 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:22,824 INFO L619 ElimStorePlain]: treesize reduction 72, result has 47.1 percent of original size [2020-04-18 15:58:22,825 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:22,825 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:55 [2020-04-18 15:58:22,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:22,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:22,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,967 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,969 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 64 [2020-04-18 15:58:22,970 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:22,975 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:22,996 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2020-04-18 15:58:22,997 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:23,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:23,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:23,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 15:58:23,010 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-04-18 15:58:23,011 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:23,029 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:23,030 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:23,031 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:269, output treesize:49 [2020-04-18 15:58:23,492 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:23,493 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 127 [2020-04-18 15:58:23,494 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:23,573 INFO L619 ElimStorePlain]: treesize reduction 64, result has 48.8 percent of original size [2020-04-18 15:58:23,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:23,575 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 15:58:23,576 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:61, output treesize:32 [2020-04-18 15:58:23,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 15:58:24,095 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:24,096 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 36 [2020-04-18 15:58:24,096 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 15:58:24,103 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 15:58:24,104 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 15:58:24,104 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:7 [2020-04-18 15:58:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:58:24,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 15:58:24,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 45 [2020-04-18 15:58:24,156 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:58:24,162 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:58:24,189 INFO L259 McrAutomatonBuilder]: Finished intersection with 71 states and 110 transitions. [2020-04-18 15:58:24,189 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:58:31,354 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 64 times. [2020-04-18 15:58:31,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-04-18 15:58:31,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=6019, Unknown=0, NotChecked=0, Total=6320 [2020-04-18 15:58:31,356 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 80 states. [2020-04-18 15:58:33,973 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-04-18 15:58:35,877 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 61 [2020-04-18 15:58:36,348 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2020-04-18 15:58:37,290 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 64 [2020-04-18 15:58:37,722 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2020-04-18 15:58:38,729 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 56 [2020-04-18 15:58:39,705 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 66 [2020-04-18 15:58:41,348 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 58 [2020-04-18 15:58:41,998 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 70 [2020-04-18 15:58:42,427 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 68 [2020-04-18 15:58:44,311 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 65 [2020-04-18 15:58:44,942 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 70 [2020-04-18 15:58:45,362 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 60 [2020-04-18 15:58:45,980 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 75 [2020-04-18 15:58:47,398 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-04-18 15:58:48,234 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-04-18 15:58:48,645 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 73 [2020-04-18 15:58:49,112 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-04-18 15:58:49,769 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 68 [2020-04-18 15:58:50,184 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 71 [2020-04-18 15:58:51,994 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-04-18 15:58:52,565 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 73 [2020-04-18 15:58:53,361 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 69 [2020-04-18 15:58:53,715 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-04-18 15:58:54,286 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 71 [2020-04-18 15:58:55,067 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 67 [2020-04-18 15:58:56,047 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-04-18 15:58:56,875 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2020-04-18 15:58:57,324 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2020-04-18 15:58:58,137 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 62 [2020-04-18 15:58:58,633 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-04-18 15:58:59,110 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-04-18 15:58:59,853 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 59 [2020-04-18 15:59:01,395 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2020-04-18 15:59:02,037 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2020-04-18 15:59:02,635 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-04-18 15:59:03,616 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-04-18 15:59:05,032 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-04-18 15:59:06,022 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2020-04-18 15:59:06,479 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2020-04-18 15:59:07,238 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-04-18 15:59:08,026 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2020-04-18 15:59:09,573 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 59 [2020-04-18 15:59:10,396 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2020-04-18 15:59:11,004 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-04-18 15:59:12,087 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 75 [2020-04-18 15:59:13,947 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 63 [2020-04-18 15:59:14,532 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2020-04-18 15:59:15,398 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2020-04-18 15:59:16,311 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 61 [2020-04-18 15:59:17,620 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2020-04-18 15:59:18,403 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 70 [2020-04-18 15:59:19,210 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-04-18 15:59:19,926 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2020-04-18 15:59:20,465 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2020-04-18 15:59:20,858 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2020-04-18 15:59:22,089 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-04-18 15:59:22,534 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2020-04-18 15:59:23,086 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 72 [2020-04-18 15:59:24,113 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2020-04-18 15:59:26,685 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 56 [2020-04-18 15:59:27,095 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2020-04-18 15:59:27,869 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 61 [2020-04-18 15:59:28,443 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2020-04-18 15:59:28,816 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-04-18 15:59:29,585 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 54 [2020-04-18 15:59:31,333 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 63 [2020-04-18 15:59:33,082 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2020-04-18 15:59:34,660 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2020-04-18 15:59:35,122 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2020-04-18 15:59:35,882 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2020-04-18 15:59:36,599 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2020-04-18 15:59:37,382 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-04-18 15:59:37,920 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2020-04-18 15:59:38,558 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 54 [2020-04-18 15:59:39,197 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-04-18 15:59:39,598 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2020-04-18 15:59:40,820 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-04-18 15:59:41,152 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-04-18 15:59:41,919 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2020-04-18 15:59:42,576 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-04-18 15:59:43,556 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-18 15:59:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:59:46,851 INFO L93 Difference]: Finished difference Result 341 states and 625 transitions. [2020-04-18 15:59:46,851 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 625 transitions. [2020-04-18 15:59:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 15:59:46,852 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:59:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:59:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1866716236, now seen corresponding path program 9 times [2020-04-18 15:59:46,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:59:46,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430330553] [2020-04-18 15:59:46,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:59:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:59:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-04-18 15:59:47,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430330553] [2020-04-18 15:59:47,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:59:47,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 15:59:47,024 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:59:47,030 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:59:47,052 INFO L259 McrAutomatonBuilder]: Finished intersection with 61 states and 90 transitions. [2020-04-18 15:59:47,052 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:59:50,730 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 15:59:50,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 15:59:50,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3735, Invalid=42705, Unknown=0, NotChecked=0, Total=46440 [2020-04-18 15:59:50,733 INFO L87 Difference]: Start difference. First operand 341 states and 625 transitions. Second operand 19 states. [2020-04-18 15:59:53,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:59:53,050 INFO L93 Difference]: Finished difference Result 401 states and 726 transitions. [2020-04-18 15:59:53,050 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 726 transitions. [2020-04-18 15:59:53,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:59:53,053 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [425164440] [2020-04-18 15:59:53,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:59:53,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 15:59:53,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [425164440] [2020-04-18 15:59:53,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2020-04-18 15:59:53,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:59:53,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2020-04-18 15:59:53,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4037, Invalid=47719, Unknown=0, NotChecked=0, Total=51756 [2020-04-18 15:59:53,057 INFO L87 Difference]: Start difference. First operand 349 states and 769 transitions. Second operand 97 states. [2020-04-18 15:59:54,063 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2020-04-18 15:59:54,593 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 55 [2020-04-18 15:59:55,086 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 60 [2020-04-18 15:59:55,931 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 69 [2020-04-18 15:59:56,561 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 67 [2020-04-18 15:59:57,291 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 67 [2020-04-18 16:00:00,967 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-04-18 16:00:01,930 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2020-04-18 16:00:03,166 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 55 [2020-04-18 16:00:03,539 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2020-04-18 16:00:06,079 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2020-04-18 16:00:06,680 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2020-04-18 16:00:07,495 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2020-04-18 16:00:08,152 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2020-04-18 16:00:09,050 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2020-04-18 16:00:09,497 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2020-04-18 16:00:09,703 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2020-04-18 16:00:12,809 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-04-18 16:00:13,033 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-04-18 16:00:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:13,643 INFO L93 Difference]: Finished difference Result 529 states and 1114 transitions. [2020-04-18 16:00:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2020-04-18 16:00:13,644 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 30 [2020-04-18 16:00:13,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:13,648 INFO L225 Difference]: With dead ends: 529 [2020-04-18 16:00:13,648 INFO L226 Difference]: Without dead ends: 529 [2020-04-18 16:00:13,651 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23390 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=5071, Invalid=61235, Unknown=0, NotChecked=0, Total=66306 [2020-04-18 16:00:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-04-18 16:00:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 371. [2020-04-18 16:00:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-04-18 16:00:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 811 transitions. [2020-04-18 16:00:13,661 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 811 transitions. Word has length 30 [2020-04-18 16:00:13,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:13,661 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 811 transitions. [2020-04-18 16:00:13,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 97 states. [2020-04-18 16:00:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 811 transitions. [2020-04-18 16:00:13,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 16:00:13,663 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:13,663 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:00:13,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:00:13,871 INFO L427 AbstractCegarLoop]: === Iteration 10 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 16:00:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:13,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1237545890, now seen corresponding path program 3 times [2020-04-18 16:00:13,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:13,872 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [688646857] [2020-04-18 16:00:13,873 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:13,875 INFO L259 McrAutomatonBuilder]: Finished intersection with 226 states and 420 transitions. [2020-04-18 16:00:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-04-18 16:00:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 16:00:13,877 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:13,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:13,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1237545890, now seen corresponding path program 4 times [2020-04-18 16:00:13,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:13,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797770275] [2020-04-18 16:00:13,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:14,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797770275] [2020-04-18 16:00:14,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307641769] [2020-04-18 16:00:14,971 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:00:15,055 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 16:00:15,055 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:00:15,058 WARN L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 124 conjunts are in the unsatisfiable core [2020-04-18 16:00:15,061 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:00:15,071 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2020-04-18 16:00:15,071 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:15,089 INFO L619 ElimStorePlain]: treesize reduction 13, result has 77.6 percent of original size [2020-04-18 16:00:15,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:15,097 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-04-18 16:00:15,097 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:15,108 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:15,108 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:15,109 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:31 [2020-04-18 16:00:15,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:15,676 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:15,676 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:15,703 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:15,703 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-04-18 16:00:15,705 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:15,783 INFO L619 ElimStorePlain]: treesize reduction 46, result has 55.8 percent of original size [2020-04-18 16:00:15,784 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:15,785 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:71, output treesize:49 [2020-04-18 16:00:15,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:15,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:15,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:15,998 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:16,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:16,002 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 44 [2020-04-18 16:00:16,003 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:16,019 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:16,022 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:16,024 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2020-04-18 16:00:16,025 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:16,037 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-04-18 16:00:16,038 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,069 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:16,070 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:16,071 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:251, output treesize:43 [2020-04-18 16:00:16,343 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:16,343 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 77 [2020-04-18 16:00:16,344 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,357 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:16,358 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:16,358 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:39 [2020-04-18 16:00:16,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:16,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:16,596 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:16,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:16,610 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2020-04-18 16:00:16,610 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,658 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:16,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:16,668 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 60 [2020-04-18 16:00:16,669 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,675 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2020-04-18 16:00:16,676 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,690 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:16,691 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:16,691 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:219, output treesize:39 [2020-04-18 16:00:16,822 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:16,823 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 47 [2020-04-18 16:00:16,824 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,831 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:16,831 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:00:16,832 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:7 [2020-04-18 16:00:16,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:16,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:00:16,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 38 [2020-04-18 16:00:16,910 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:16,914 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:16,929 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 82 transitions. [2020-04-18 16:00:16,929 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:19,702 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 34 times. [2020-04-18 16:00:19,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-04-18 16:00:19,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=2985, Unknown=0, NotChecked=0, Total=3192 [2020-04-18 16:00:19,703 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 57 states. [2020-04-18 16:00:22,252 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2020-04-18 16:00:23,114 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2020-04-18 16:00:23,696 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-04-18 16:00:24,777 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-04-18 16:00:26,511 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-04-18 16:00:29,236 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2020-04-18 16:00:29,617 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2020-04-18 16:00:30,690 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-04-18 16:00:31,952 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 16:00:32,355 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-04-18 16:00:32,689 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2020-04-18 16:00:33,336 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-04-18 16:00:34,095 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-04-18 16:00:34,484 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2020-04-18 16:00:34,987 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-04-18 16:00:35,263 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2020-04-18 16:00:36,221 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2020-04-18 16:00:36,810 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2020-04-18 16:00:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:38,664 INFO L93 Difference]: Finished difference Result 283 states and 516 transitions. [2020-04-18 16:00:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 516 transitions. [2020-04-18 16:00:38,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 16:00:38,665 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:00:38,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:38,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1988729270, now seen corresponding path program 5 times [2020-04-18 16:00:38,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:38,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972413402] [2020-04-18 16:00:38,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:39,227 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 31 [2020-04-18 16:00:39,992 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:39,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972413402] [2020-04-18 16:00:39,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742057706] [2020-04-18 16:00:39,992 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:00:40,081 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-04-18 16:00:40,082 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:00:40,084 WARN L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 124 conjunts are in the unsatisfiable core [2020-04-18 16:00:40,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:00:40,095 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2020-04-18 16:00:40,096 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:40,113 INFO L619 ElimStorePlain]: treesize reduction 12, result has 78.9 percent of original size [2020-04-18 16:00:40,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,120 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-04-18 16:00:40,120 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:40,130 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:40,131 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:40,131 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:31 [2020-04-18 16:00:40,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,487 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:40,513 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:40,513 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-04-18 16:00:40,514 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:40,577 INFO L619 ElimStorePlain]: treesize reduction 46, result has 55.8 percent of original size [2020-04-18 16:00:40,577 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:40,578 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:71, output treesize:49 [2020-04-18 16:00:40,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:40,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:40,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,729 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:40,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,732 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-04-18 16:00:40,732 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:40,740 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,754 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:40,757 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,760 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2020-04-18 16:00:40,760 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:40,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:40,766 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 44 [2020-04-18 16:00:40,767 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:40,785 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:40,786 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:40,787 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:251, output treesize:43 [2020-04-18 16:00:41,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:41,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:41,177 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:41,182 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:41,185 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:41,189 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 55 [2020-04-18 16:00:41,190 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:41,196 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:41,203 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:00:41,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:41,211 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2020-04-18 16:00:41,212 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:41,218 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:00:41,219 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2020-04-18 16:00:41,219 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:41,237 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:41,238 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:41,238 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:258, output treesize:46 [2020-04-18 16:00:41,315 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2020-04-18 16:00:41,315 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:41,331 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:41,331 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:41,332 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2020-04-18 16:00:41,482 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:41,483 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 47 [2020-04-18 16:00:41,484 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:41,506 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:41,507 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:00:41,507 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:7 [2020-04-18 16:00:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:41,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:00:41,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 38 [2020-04-18 16:00:41,591 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:41,596 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:41,613 INFO L259 McrAutomatonBuilder]: Finished intersection with 76 states and 120 transitions. [2020-04-18 16:00:41,614 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:50,434 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 54 times. [2020-04-18 16:00:50,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-04-18 16:00:50,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2005, Invalid=23117, Unknown=0, NotChecked=0, Total=25122 [2020-04-18 16:00:50,436 INFO L87 Difference]: Start difference. First operand 283 states and 516 transitions. Second operand 76 states. [2020-04-18 16:01:00,129 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2020-04-18 16:01:01,193 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 52 [2020-04-18 16:01:02,298 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 56 [2020-04-18 16:01:02,821 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 48 [2020-04-18 16:01:03,625 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-04-18 16:01:04,459 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 54 [2020-04-18 16:01:04,943 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 56 [2020-04-18 16:01:06,622 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2020-04-18 16:01:10,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:01:10,709 INFO L93 Difference]: Finished difference Result 296 states and 532 transitions. [2020-04-18 16:01:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 532 transitions. [2020-04-18 16:01:10,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 16:01:10,710 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:01:10,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:01:10,711 INFO L82 PathProgramCache]: Analyzing trace with hash 86820262, now seen corresponding path program 6 times [2020-04-18 16:01:10,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:01:10,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101868468] [2020-04-18 16:01:10,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:01:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:01:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:01:12,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101868468] [2020-04-18 16:01:12,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232732341] [2020-04-18 16:01:12,046 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:01:12,153 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-04-18 16:01:12,153 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:01:12,157 WARN L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 118 conjunts are in the unsatisfiable core [2020-04-18 16:01:12,161 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:01:12,172 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2020-04-18 16:01:12,173 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:12,194 INFO L619 ElimStorePlain]: treesize reduction 13, result has 77.6 percent of original size [2020-04-18 16:01:12,198 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,198 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2020-04-18 16:01:12,199 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:12,209 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:12,209 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:01:12,210 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:31 [2020-04-18 16:01:12,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,561 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,562 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:01:12,588 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:12,589 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 86 [2020-04-18 16:01:12,590 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:12,652 INFO L619 ElimStorePlain]: treesize reduction 46, result has 55.8 percent of original size [2020-04-18 16:01:12,652 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:01:12,653 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:71, output treesize:49 [2020-04-18 16:01:12,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:01:12,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:01:12,771 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,785 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:01:12,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,789 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 44 [2020-04-18 16:01:12,789 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:12,795 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,806 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:01:12,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,809 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-04-18 16:01:12,810 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:12,817 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:12,818 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2020-04-18 16:01:12,818 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:12,840 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:12,840 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:01:12,841 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:251, output treesize:43 [2020-04-18 16:01:13,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:01:13,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:01:13,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:13,139 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:01:13,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:13,146 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2020-04-18 16:01:13,147 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:13,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:13,162 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:01:13,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:13,168 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 52 [2020-04-18 16:01:13,169 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:13,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:01:13,176 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 44 [2020-04-18 16:01:13,176 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:13,193 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:13,194 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:01:13,194 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:231, output treesize:43 [2020-04-18 16:01:13,353 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:13,353 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 77 [2020-04-18 16:01:13,354 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:13,368 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:13,368 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:01:13,369 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:39 [2020-04-18 16:01:13,502 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:13,503 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 47 [2020-04-18 16:01:13,504 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:01:13,509 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:01:13,509 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:01:13,510 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:7 [2020-04-18 16:01:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:01:13,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:01:13,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 37 [2020-04-18 16:01:13,589 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:01:13,604 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:01:13,620 INFO L259 McrAutomatonBuilder]: Finished intersection with 70 states and 108 transitions. [2020-04-18 16:01:13,620 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. Received shutdown request... [2020-04-18 16:01:14,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:01:14,805 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 16:01:14,809 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 16:01:14,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:01:14 BasicIcfg [2020-04-18 16:01:14,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:01:14,811 INFO L168 Benchmark]: Toolchain (without parser) took 257432.98 ms. Allocated memory was 144.7 MB in the beginning and 547.4 MB in the end (delta: 402.7 MB). Free memory was 99.3 MB in the beginning and 352.4 MB in the end (delta: -253.1 MB). Peak memory consumption was 149.6 MB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,811 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.87 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 97.4 MB in the beginning and 148.8 MB in the end (delta: -51.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.07 ms. Allocated memory is still 202.9 MB. Free memory was 148.8 MB in the beginning and 146.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,812 INFO L168 Benchmark]: Boogie Preprocessor took 33.98 ms. Allocated memory is still 202.9 MB. Free memory was 146.0 MB in the beginning and 144.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,812 INFO L168 Benchmark]: RCFGBuilder took 566.66 ms. Allocated memory is still 202.9 MB. Free memory was 144.0 MB in the beginning and 114.0 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,813 INFO L168 Benchmark]: TraceAbstraction took 255908.32 ms. Allocated memory was 202.9 MB in the beginning and 547.4 MB in the end (delta: 344.5 MB). Free memory was 113.4 MB in the beginning and 352.4 MB in the end (delta: -239.0 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:01:14,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.87 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 97.4 MB in the beginning and 148.8 MB in the end (delta: -51.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 95.07 ms. Allocated memory is still 202.9 MB. Free memory was 148.8 MB in the beginning and 146.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.98 ms. Allocated memory is still 202.9 MB. Free memory was 146.0 MB in the beginning and 144.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 566.66 ms. Allocated memory is still 202.9 MB. Free memory was 144.0 MB in the beginning and 114.0 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255908.32 ms. Allocated memory was 202.9 MB in the beginning and 547.4 MB in the end (delta: 344.5 MB). Free memory was 113.4 MB in the beginning and 352.4 MB in the end (delta: -239.0 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.7s, 122 ProgramPointsBefore, 31 ProgramPointsAfterwards, 128 TransitionsBefore, 34 TransitionsAfterwards, 4968 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 2658 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5914 CheckedPairsTotal, 112 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 821]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 821). Cancelled while BasicCegarLoop was analyzing trace of length 31 with TraceHistMax 2,while PredicateComparison was comparing new predicate (quantifier-free) to 174 known predicates. - TimeoutResultAtElement [Line: 825]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 825). Cancelled while BasicCegarLoop was analyzing trace of length 31 with TraceHistMax 2,while PredicateComparison was comparing new predicate (quantifier-free) to 174 known predicates. - TimeoutResultAtElement [Line: 826]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 826). Cancelled while BasicCegarLoop was analyzing trace of length 31 with TraceHistMax 2,while PredicateComparison was comparing new predicate (quantifier-free) to 174 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 255.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 39.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 249 SDtfs, 1648 SDslu, 2428 SDs, 0 SdLazy, 20726 SolverSat, 879 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1036 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 615 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34028 ImplicationChecksByTransitivity, 75.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=371occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 377 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown