/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-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:17:23,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:17:23,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:17:23,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:17:23,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:17:23,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:17:23,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:17:23,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:17:23,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:17:23,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:17:23,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:17:23,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:17:23,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:17:23,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:17:23,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:17:23,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:17:23,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:17:23,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:17:23,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:17:23,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:17:23,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:17:23,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:17:23,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:17:23,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:17:23,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:17:23,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:17:23,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:17:23,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:17:23,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:17:23,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:17:23,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:17:24,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:17:24,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:17:24,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:17:24,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:17:24,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:17:24,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:17:24,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:17:24,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:17:24,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:17:24,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:17:24,007 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-NoLbe.epf [2020-04-18 07:17:24,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:17:24,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:17:24,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:17:24,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:17:24,023 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:17:24,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:17:24,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:17:24,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:17:24,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:17:24,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:17:24,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:17:24,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:17:24,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:17:24,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:17:24,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:17:24,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:17:24,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:17:24,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:17:24,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:17:24,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:17:24,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:17:24,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:17:24,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:17:24,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:17:24,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:17:24,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:17:24,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:17:24,028 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:17:24,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:17:24,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:17:24,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:17:24,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:17:24,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:17:24,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:17:24,331 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:17:24,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-04-18 07:17:24,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/612b396a0/4661b2e1b76247ada5b5dbc9e869f4e1/FLAGda27e9b08 [2020-04-18 07:17:25,054 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:17:25,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-04-18 07:17:25,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/612b396a0/4661b2e1b76247ada5b5dbc9e869f4e1/FLAGda27e9b08 [2020-04-18 07:17:25,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/612b396a0/4661b2e1b76247ada5b5dbc9e869f4e1 [2020-04-18 07:17:25,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:17:25,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:17:25,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:17:25,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:17:25,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:17:25,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:25" (1/1) ... [2020-04-18 07:17:25,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8e0316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:25, skipping insertion in model container [2020-04-18 07:17:25,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:25" (1/1) ... [2020-04-18 07:17:25,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:17:25,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:17:26,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:17:26,182 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:17:26,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:17:26,754 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:17:26,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26 WrapperNode [2020-04-18 07:17:26,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:17:26,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:17:26,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:17:26,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:17:26,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:17:26,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:17:26,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:17:26,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:17:26,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (1/1) ... [2020-04-18 07:17:26,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:17:26,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:17:26,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:17:26,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:17:26,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (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 07:17:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:17:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 07:17:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 07:17:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:17:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:17:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-04-18 07:17:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-04-18 07:17:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:17:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:17:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 07:17:26,980 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 07:17:27,794 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:17:27,795 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-04-18 07:17:27,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:27 BoogieIcfgContainer [2020-04-18 07:17:27,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:17:27,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:17:27,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:17:27,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:17:27,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:17:25" (1/3) ... [2020-04-18 07:17:27,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451d7670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:27, skipping insertion in model container [2020-04-18 07:17:27,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:26" (2/3) ... [2020-04-18 07:17:27,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451d7670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:27, skipping insertion in model container [2020-04-18 07:17:27,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:27" (3/3) ... [2020-04-18 07:17:27,809 INFO L109 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2020-04-18 07:17:27,820 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:17:27,821 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:17:27,828 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-04-18 07:17:27,830 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:17:27,861 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,861 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,861 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,862 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,863 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,863 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,864 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,864 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,864 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,864 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,864 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,865 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,865 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,866 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,866 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,866 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,866 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,867 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,867 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,867 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,868 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,868 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,868 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,869 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,869 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,869 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,869 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,869 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,870 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,870 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,870 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,871 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,871 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,872 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,872 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,872 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,873 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,873 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,873 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,875 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,875 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,875 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,876 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,878 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,879 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,880 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,888 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,889 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,889 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,889 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,889 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,890 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,890 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,891 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,891 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,911 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,911 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,912 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,912 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,912 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,913 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,913 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,913 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,913 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:27,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-04-18 07:17:27,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:17:27,979 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:17:27,979 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:17:27,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:17:27,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:17:27,980 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:17:27,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:17:27,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:17:28,009 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 144 places, 148 transitions, 318 flow [2020-04-18 07:17:28,248 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4726 states. [2020-04-18 07:17:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 4726 states. [2020-04-18 07:17:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 07:17:28,262 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:28,264 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:28,264 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:28,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1713283788, now seen corresponding path program 1 times [2020-04-18 07:17:28,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:28,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025812607] [2020-04-18 07:17:28,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:28,974 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 07:17:28,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025812607] [2020-04-18 07:17:28,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:28,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:28,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038276563] [2020-04-18 07:17:28,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:28,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:28,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:29,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:29,003 INFO L87 Difference]: Start difference. First operand 4726 states. Second operand 6 states. [2020-04-18 07:17:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:29,498 INFO L93 Difference]: Finished difference Result 4729 states and 12880 transitions. [2020-04-18 07:17:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:17:29,499 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 07:17:29,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:29,541 INFO L225 Difference]: With dead ends: 4729 [2020-04-18 07:17:29,542 INFO L226 Difference]: Without dead ends: 3865 [2020-04-18 07:17:29,544 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:29,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2020-04-18 07:17:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3864. [2020-04-18 07:17:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3864 states. [2020-04-18 07:17:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 10475 transitions. [2020-04-18 07:17:29,922 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 10475 transitions. Word has length 32 [2020-04-18 07:17:29,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:29,929 INFO L479 AbstractCegarLoop]: Abstraction has 3864 states and 10475 transitions. [2020-04-18 07:17:29,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:29,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 10475 transitions. [2020-04-18 07:17:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 07:17:29,931 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:29,932 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:29,932 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:29,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:29,933 INFO L82 PathProgramCache]: Analyzing trace with hash -251908973, now seen corresponding path program 1 times [2020-04-18 07:17:29,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:29,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153949249] [2020-04-18 07:17:29,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:30,121 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 07:17:30,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153949249] [2020-04-18 07:17:30,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:30,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:30,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741752138] [2020-04-18 07:17:30,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:30,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:30,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:30,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:30,126 INFO L87 Difference]: Start difference. First operand 3864 states and 10475 transitions. Second operand 6 states. [2020-04-18 07:17:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:30,586 INFO L93 Difference]: Finished difference Result 3866 states and 10477 transitions. [2020-04-18 07:17:30,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:17:30,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-04-18 07:17:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:30,613 INFO L225 Difference]: With dead ends: 3866 [2020-04-18 07:17:30,614 INFO L226 Difference]: Without dead ends: 3866 [2020-04-18 07:17:30,615 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:17:30,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2020-04-18 07:17:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3862. [2020-04-18 07:17:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3862 states. [2020-04-18 07:17:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 10473 transitions. [2020-04-18 07:17:30,749 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 10473 transitions. Word has length 38 [2020-04-18 07:17:30,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:30,750 INFO L479 AbstractCegarLoop]: Abstraction has 3862 states and 10473 transitions. [2020-04-18 07:17:30,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:30,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 10473 transitions. [2020-04-18 07:17:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 07:17:30,754 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:30,754 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:30,754 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:30,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:30,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1207684161, now seen corresponding path program 1 times [2020-04-18 07:17:30,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:30,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717874433] [2020-04-18 07:17:30,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:30,949 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 07:17:30,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717874433] [2020-04-18 07:17:30,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:30,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:30,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632268284] [2020-04-18 07:17:31,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:31,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:31,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:31,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:31,010 INFO L87 Difference]: Start difference. First operand 3862 states and 10473 transitions. Second operand 6 states. [2020-04-18 07:17:31,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:31,740 INFO L93 Difference]: Finished difference Result 5826 states and 15811 transitions. [2020-04-18 07:17:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:17:31,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-04-18 07:17:31,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:31,792 INFO L225 Difference]: With dead ends: 5826 [2020-04-18 07:17:31,792 INFO L226 Difference]: Without dead ends: 5826 [2020-04-18 07:17:31,793 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:31,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2020-04-18 07:17:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 4386. [2020-04-18 07:17:31,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4386 states. [2020-04-18 07:17:31,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 11917 transitions. [2020-04-18 07:17:31,985 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 11917 transitions. Word has length 56 [2020-04-18 07:17:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:31,987 INFO L479 AbstractCegarLoop]: Abstraction has 4386 states and 11917 transitions. [2020-04-18 07:17:31,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 11917 transitions. [2020-04-18 07:17:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-04-18 07:17:31,997 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:31,997 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:31,997 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:31,998 INFO L82 PathProgramCache]: Analyzing trace with hash -818897435, now seen corresponding path program 1 times [2020-04-18 07:17:31,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:31,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101324247] [2020-04-18 07:17:31,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:32,150 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 07:17:32,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101324247] [2020-04-18 07:17:32,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:32,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:32,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468762517] [2020-04-18 07:17:32,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:32,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:32,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:32,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:32,153 INFO L87 Difference]: Start difference. First operand 4386 states and 11917 transitions. Second operand 6 states. [2020-04-18 07:17:32,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:32,858 INFO L93 Difference]: Finished difference Result 6350 states and 17159 transitions. [2020-04-18 07:17:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:32,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-04-18 07:17:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:32,893 INFO L225 Difference]: With dead ends: 6350 [2020-04-18 07:17:32,893 INFO L226 Difference]: Without dead ends: 5318 [2020-04-18 07:17:32,894 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:17:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5318 states. [2020-04-18 07:17:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5318 to 5126. [2020-04-18 07:17:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-04-18 07:17:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 13986 transitions. [2020-04-18 07:17:33,095 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 13986 transitions. Word has length 62 [2020-04-18 07:17:33,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:33,096 INFO L479 AbstractCegarLoop]: Abstraction has 5126 states and 13986 transitions. [2020-04-18 07:17:33,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 13986 transitions. [2020-04-18 07:17:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-04-18 07:17:33,103 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:33,103 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:33,104 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:33,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:33,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1530943082, now seen corresponding path program 1 times [2020-04-18 07:17:33,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:33,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972422644] [2020-04-18 07:17:33,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:33,215 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 07:17:33,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972422644] [2020-04-18 07:17:33,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:33,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 07:17:33,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381872286] [2020-04-18 07:17:33,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 07:17:33,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:33,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:17:33,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 07:17:33,217 INFO L87 Difference]: Start difference. First operand 5126 states and 13986 transitions. Second operand 5 states. [2020-04-18 07:17:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:33,302 INFO L93 Difference]: Finished difference Result 1781 states and 4651 transitions. [2020-04-18 07:17:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 07:17:33,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-04-18 07:17:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:33,310 INFO L225 Difference]: With dead ends: 1781 [2020-04-18 07:17:33,310 INFO L226 Difference]: Without dead ends: 1781 [2020-04-18 07:17:33,310 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:17:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2020-04-18 07:17:33,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2020-04-18 07:17:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-04-18 07:17:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 4651 transitions. [2020-04-18 07:17:33,364 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 4651 transitions. Word has length 68 [2020-04-18 07:17:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:33,365 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 4651 transitions. [2020-04-18 07:17:33,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 07:17:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 4651 transitions. [2020-04-18 07:17:33,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:17:33,371 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:33,371 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:33,371 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:33,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:33,372 INFO L82 PathProgramCache]: Analyzing trace with hash 301082608, now seen corresponding path program 1 times [2020-04-18 07:17:33,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:33,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305926413] [2020-04-18 07:17:33,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:35,517 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 07:17:35,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305926413] [2020-04-18 07:17:35,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:35,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-04-18 07:17:35,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657189758] [2020-04-18 07:17:35,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-04-18 07:17:35,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:35,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-04-18 07:17:35,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-04-18 07:17:35,520 INFO L87 Difference]: Start difference. First operand 1781 states and 4651 transitions. Second operand 22 states. [2020-04-18 07:17:36,579 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-04-18 07:17:36,768 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:17:37,320 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-04-18 07:17:37,612 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-04-18 07:17:38,203 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-04-18 07:17:38,527 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-04-18 07:17:38,752 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-04-18 07:17:39,274 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-04-18 07:17:39,442 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:17:39,612 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-04-18 07:17:39,743 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:17:39,921 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-04-18 07:17:40,084 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:17:40,277 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-04-18 07:17:40,441 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-04-18 07:17:40,627 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-04-18 07:17:40,800 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:17:41,008 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-04-18 07:17:41,147 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:17:41,356 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-04-18 07:17:41,510 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:17:41,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:41,519 INFO L93 Difference]: Finished difference Result 3185 states and 8019 transitions. [2020-04-18 07:17:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-04-18 07:17:41,520 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 97 [2020-04-18 07:17:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:41,528 INFO L225 Difference]: With dead ends: 3185 [2020-04-18 07:17:41,528 INFO L226 Difference]: Without dead ends: 3185 [2020-04-18 07:17:41,530 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2020-04-18 07:17:41,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2020-04-18 07:17:41,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 2536. [2020-04-18 07:17:41,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2536 states. [2020-04-18 07:17:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 6549 transitions. [2020-04-18 07:17:41,603 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 6549 transitions. Word has length 97 [2020-04-18 07:17:41,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:41,604 INFO L479 AbstractCegarLoop]: Abstraction has 2536 states and 6549 transitions. [2020-04-18 07:17:41,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-04-18 07:17:41,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 6549 transitions. [2020-04-18 07:17:41,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:17:41,611 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:41,611 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:41,612 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:41,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:41,612 INFO L82 PathProgramCache]: Analyzing trace with hash -345226960, now seen corresponding path program 2 times [2020-04-18 07:17:41,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:41,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897989021] [2020-04-18 07:17:41,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:43,111 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 07:17:43,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897989021] [2020-04-18 07:17:43,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:43,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:17:43,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909897157] [2020-04-18 07:17:43,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:17:43,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:43,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:17:43,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:17:43,113 INFO L87 Difference]: Start difference. First operand 2536 states and 6549 transitions. Second operand 20 states. [2020-04-18 07:17:44,008 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:17:44,366 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:17:44,547 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:17:44,814 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-04-18 07:17:45,347 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:17:45,601 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:17:45,839 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-04-18 07:17:46,355 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:17:46,510 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:17:46,657 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:17:46,854 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 07:17:47,016 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-04-18 07:17:47,168 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:17:47,335 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:17:47,480 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:17:47,608 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:17:47,805 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-04-18 07:17:47,955 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:17:48,092 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:17:48,268 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-04-18 07:17:48,398 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:17:48,555 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-04-18 07:17:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:48,562 INFO L93 Difference]: Finished difference Result 5131 states and 12837 transitions. [2020-04-18 07:17:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:17:48,562 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:17:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:48,576 INFO L225 Difference]: With dead ends: 5131 [2020-04-18 07:17:48,576 INFO L226 Difference]: Without dead ends: 5131 [2020-04-18 07:17:48,577 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=620, Invalid=1542, Unknown=0, NotChecked=0, Total=2162 [2020-04-18 07:17:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2020-04-18 07:17:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 2547. [2020-04-18 07:17:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2547 states. [2020-04-18 07:17:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 6582 transitions. [2020-04-18 07:17:48,664 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 6582 transitions. Word has length 97 [2020-04-18 07:17:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:48,665 INFO L479 AbstractCegarLoop]: Abstraction has 2547 states and 6582 transitions. [2020-04-18 07:17:48,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:17:48,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 6582 transitions. [2020-04-18 07:17:48,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:17:48,672 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:48,672 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:48,672 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:48,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:48,673 INFO L82 PathProgramCache]: Analyzing trace with hash 842485358, now seen corresponding path program 1 times [2020-04-18 07:17:48,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:48,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276340964] [2020-04-18 07:17:48,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:49,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276340964] [2020-04-18 07:17:49,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:49,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:17:49,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139506474] [2020-04-18 07:17:49,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:17:49,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:49,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:17:49,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:17:49,463 INFO L87 Difference]: Start difference. First operand 2547 states and 6582 transitions. Second operand 17 states. [2020-04-18 07:17:51,421 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-04-18 07:17:51,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:51,503 INFO L93 Difference]: Finished difference Result 4354 states and 11187 transitions. [2020-04-18 07:17:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:17:51,504 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:17:51,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:51,514 INFO L225 Difference]: With dead ends: 4354 [2020-04-18 07:17:51,514 INFO L226 Difference]: Without dead ends: 4289 [2020-04-18 07:17:51,515 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=316, Invalid=614, Unknown=0, NotChecked=0, Total=930 [2020-04-18 07:17:51,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2020-04-18 07:17:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4149. [2020-04-18 07:17:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4149 states. [2020-04-18 07:17:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 10848 transitions. [2020-04-18 07:17:51,618 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 10848 transitions. Word has length 97 [2020-04-18 07:17:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:51,618 INFO L479 AbstractCegarLoop]: Abstraction has 4149 states and 10848 transitions. [2020-04-18 07:17:51,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:17:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 10848 transitions. [2020-04-18 07:17:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:17:51,629 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:51,629 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:51,629 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:51,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:51,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1430334484, now seen corresponding path program 3 times [2020-04-18 07:17:51,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:51,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552921403] [2020-04-18 07:17:51,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:53,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552921403] [2020-04-18 07:17:53,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:53,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:17:53,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313118728] [2020-04-18 07:17:53,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:17:53,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:17:53,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:17:53,073 INFO L87 Difference]: Start difference. First operand 4149 states and 10848 transitions. Second operand 20 states. [2020-04-18 07:17:54,151 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 07:17:54,423 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-04-18 07:17:54,712 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-04-18 07:17:55,051 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-04-18 07:17:55,809 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2020-04-18 07:17:56,067 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-04-18 07:17:56,740 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-04-18 07:17:57,005 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-04-18 07:17:57,209 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-04-18 07:17:57,452 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-04-18 07:17:57,728 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-04-18 07:17:57,965 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-04-18 07:17:57,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:57,978 INFO L93 Difference]: Finished difference Result 7088 states and 17837 transitions. [2020-04-18 07:17:57,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:17:57,979 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:17:57,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:57,995 INFO L225 Difference]: With dead ends: 7088 [2020-04-18 07:17:57,995 INFO L226 Difference]: Without dead ends: 7088 [2020-04-18 07:17:57,996 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=357, Invalid=975, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:17:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7088 states. [2020-04-18 07:17:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7088 to 4255. [2020-04-18 07:17:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2020-04-18 07:17:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 11134 transitions. [2020-04-18 07:17:58,172 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 11134 transitions. Word has length 97 [2020-04-18 07:17:58,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:58,172 INFO L479 AbstractCegarLoop]: Abstraction has 4255 states and 11134 transitions. [2020-04-18 07:17:58,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:17:58,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 11134 transitions. [2020-04-18 07:17:58,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:17:58,186 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:58,186 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:58,187 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:17:58,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:58,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1288500686, now seen corresponding path program 4 times [2020-04-18 07:17:58,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:58,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463631808] [2020-04-18 07:17:58,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:59,323 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 07:17:59,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463631808] [2020-04-18 07:17:59,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:59,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:17:59,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26893329] [2020-04-18 07:17:59,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:17:59,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:59,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:17:59,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:17:59,325 INFO L87 Difference]: Start difference. First operand 4255 states and 11134 transitions. Second operand 18 states. [2020-04-18 07:18:00,391 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:18:00,555 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:18:00,742 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:00,949 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-04-18 07:18:01,430 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:18:01,730 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:18:01,940 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:18:02,430 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:18:02,571 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-04-18 07:18:02,756 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-04-18 07:18:02,900 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:18:03,067 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:18:03,194 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-04-18 07:18:03,394 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:18:03,551 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:18:03,717 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:03,844 INFO L93 Difference]: Finished difference Result 5896 states and 14884 transitions. [2020-04-18 07:18:03,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 07:18:03,845 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:18:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:03,855 INFO L225 Difference]: With dead ends: 5896 [2020-04-18 07:18:03,855 INFO L226 Difference]: Without dead ends: 5896 [2020-04-18 07:18:03,856 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=488, Invalid=1152, Unknown=0, NotChecked=0, Total=1640 [2020-04-18 07:18:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2020-04-18 07:18:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 3793. [2020-04-18 07:18:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3793 states. [2020-04-18 07:18:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3793 states to 3793 states and 9891 transitions. [2020-04-18 07:18:03,960 INFO L78 Accepts]: Start accepts. Automaton has 3793 states and 9891 transitions. Word has length 97 [2020-04-18 07:18:03,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:03,961 INFO L479 AbstractCegarLoop]: Abstraction has 3793 states and 9891 transitions. [2020-04-18 07:18:03,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:18:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3793 states and 9891 transitions. [2020-04-18 07:18:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:03,973 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:03,973 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:03,973 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:03,974 INFO L82 PathProgramCache]: Analyzing trace with hash 179202156, now seen corresponding path program 5 times [2020-04-18 07:18:03,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:03,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076440618] [2020-04-18 07:18:03,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:04,999 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2020-04-18 07:18:05,161 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 07:18:05,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076440618] [2020-04-18 07:18:05,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:05,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:18:05,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228408772] [2020-04-18 07:18:05,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:18:05,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:05,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:18:05,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:18:05,163 INFO L87 Difference]: Start difference. First operand 3793 states and 9891 transitions. Second operand 18 states. [2020-04-18 07:18:05,995 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-04-18 07:18:06,330 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:18:06,506 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:18:06,683 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:06,916 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-04-18 07:18:07,421 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:18:07,701 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:07,888 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-04-18 07:18:08,088 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:18:08,673 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:08,825 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:18:09,026 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-04-18 07:18:09,219 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-04-18 07:18:09,385 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:09,515 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:18:09,726 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-04-18 07:18:09,866 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:18:10,048 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-04-18 07:18:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:10,170 INFO L93 Difference]: Finished difference Result 4824 states and 12128 transitions. [2020-04-18 07:18:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 07:18:10,171 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:18:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:10,178 INFO L225 Difference]: With dead ends: 4824 [2020-04-18 07:18:10,178 INFO L226 Difference]: Without dead ends: 4824 [2020-04-18 07:18:10,179 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2020-04-18 07:18:10,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4824 states. [2020-04-18 07:18:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4824 to 3797. [2020-04-18 07:18:10,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3797 states. [2020-04-18 07:18:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 9901 transitions. [2020-04-18 07:18:10,268 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 9901 transitions. Word has length 97 [2020-04-18 07:18:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:10,268 INFO L479 AbstractCegarLoop]: Abstraction has 3797 states and 9901 transitions. [2020-04-18 07:18:10,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:18:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 9901 transitions. [2020-04-18 07:18:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:10,284 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:10,284 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:10,284 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:10,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:10,285 INFO L82 PathProgramCache]: Analyzing trace with hash -437503192, now seen corresponding path program 6 times [2020-04-18 07:18:10,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:10,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197369495] [2020-04-18 07:18:10,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:11,613 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 07:18:11,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197369495] [2020-04-18 07:18:11,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:11,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:18:11,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778249086] [2020-04-18 07:18:11,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:18:11,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:11,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:18:11,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:18:11,615 INFO L87 Difference]: Start difference. First operand 3797 states and 9901 transitions. Second operand 20 states. [2020-04-18 07:18:12,525 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:12,905 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:18:13,099 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:18:13,807 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:18:14,061 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:18:14,233 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:18:14,469 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-04-18 07:18:15,120 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:18:15,261 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:15,471 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-04-18 07:18:15,620 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:18:15,746 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-04-18 07:18:15,894 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:18:16,023 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:16,217 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:18:16,359 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:18:16,541 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:16,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:16,668 INFO L93 Difference]: Finished difference Result 6293 states and 15436 transitions. [2020-04-18 07:18:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 07:18:16,668 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:18:16,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:16,676 INFO L225 Difference]: With dead ends: 6293 [2020-04-18 07:18:16,676 INFO L226 Difference]: Without dead ends: 6293 [2020-04-18 07:18:16,677 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=448, Invalid=1358, Unknown=0, NotChecked=0, Total=1806 [2020-04-18 07:18:16,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2020-04-18 07:18:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 3813. [2020-04-18 07:18:16,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3813 states. [2020-04-18 07:18:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3813 states to 3813 states and 9941 transitions. [2020-04-18 07:18:16,778 INFO L78 Accepts]: Start accepts. Automaton has 3813 states and 9941 transitions. Word has length 97 [2020-04-18 07:18:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:16,778 INFO L479 AbstractCegarLoop]: Abstraction has 3813 states and 9941 transitions. [2020-04-18 07:18:16,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:18:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3813 states and 9941 transitions. [2020-04-18 07:18:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:16,787 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:16,787 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:16,788 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:16,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1499961272, now seen corresponding path program 7 times [2020-04-18 07:18:16,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:16,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445111429] [2020-04-18 07:18:16,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:18,079 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 07:18:18,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445111429] [2020-04-18 07:18:18,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:18,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:18:18,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294208160] [2020-04-18 07:18:18,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:18:18,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:18,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:18:18,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:18:18,081 INFO L87 Difference]: Start difference. First operand 3813 states and 9941 transitions. Second operand 18 states. [2020-04-18 07:18:18,772 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-04-18 07:18:18,915 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-04-18 07:18:19,194 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:18:19,358 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:18:19,900 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:18:20,108 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:18:20,270 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:20,461 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-04-18 07:18:20,662 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:18:21,236 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:18:21,384 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:18:21,560 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-04-18 07:18:21,710 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-04-18 07:18:21,843 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-04-18 07:18:22,013 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:18:22,146 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:18:22,328 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:22,466 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:18:22,643 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-04-18 07:18:22,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:22,776 INFO L93 Difference]: Finished difference Result 5868 states and 14559 transitions. [2020-04-18 07:18:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 07:18:22,777 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:18:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:22,783 INFO L225 Difference]: With dead ends: 5868 [2020-04-18 07:18:22,783 INFO L226 Difference]: Without dead ends: 5868 [2020-04-18 07:18:22,784 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2020-04-18 07:18:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5868 states. [2020-04-18 07:18:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5868 to 3801. [2020-04-18 07:18:22,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3801 states. [2020-04-18 07:18:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3801 states to 3801 states and 9911 transitions. [2020-04-18 07:18:22,881 INFO L78 Accepts]: Start accepts. Automaton has 3801 states and 9911 transitions. Word has length 97 [2020-04-18 07:18:22,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:22,882 INFO L479 AbstractCegarLoop]: Abstraction has 3801 states and 9911 transitions. [2020-04-18 07:18:22,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:18:22,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3801 states and 9911 transitions. [2020-04-18 07:18:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:22,894 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:22,894 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:22,895 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:22,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:22,895 INFO L82 PathProgramCache]: Analyzing trace with hash 255634468, now seen corresponding path program 8 times [2020-04-18 07:18:22,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:22,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995383155] [2020-04-18 07:18:22,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:24,301 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 07:18:24,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995383155] [2020-04-18 07:18:24,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:24,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:18:24,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352614453] [2020-04-18 07:18:24,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:18:24,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:24,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:18:24,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:18:24,303 INFO L87 Difference]: Start difference. First operand 3801 states and 9911 transitions. Second operand 20 states. [2020-04-18 07:18:25,241 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:26,257 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:18:26,541 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-04-18 07:18:26,761 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-04-18 07:18:27,343 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:27,513 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:18:27,743 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:27,920 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:18:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:28,095 INFO L93 Difference]: Finished difference Result 5530 states and 13740 transitions. [2020-04-18 07:18:28,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:18:28,096 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:18:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:28,105 INFO L225 Difference]: With dead ends: 5530 [2020-04-18 07:18:28,105 INFO L226 Difference]: Without dead ends: 5530 [2020-04-18 07:18:28,106 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:18:28,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2020-04-18 07:18:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 3727. [2020-04-18 07:18:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3727 states. [2020-04-18 07:18:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 9720 transitions. [2020-04-18 07:18:28,190 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 9720 transitions. Word has length 97 [2020-04-18 07:18:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:28,191 INFO L479 AbstractCegarLoop]: Abstraction has 3727 states and 9720 transitions. [2020-04-18 07:18:28,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:18:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 9720 transitions. [2020-04-18 07:18:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:28,199 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:28,199 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:28,199 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:28,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1947056688, now seen corresponding path program 9 times [2020-04-18 07:18:28,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:28,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308838212] [2020-04-18 07:18:28,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:29,585 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 07:18:29,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308838212] [2020-04-18 07:18:29,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:29,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:18:29,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529803038] [2020-04-18 07:18:29,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:18:29,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:29,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:18:29,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:18:29,587 INFO L87 Difference]: Start difference. First operand 3727 states and 9720 transitions. Second operand 20 states. [2020-04-18 07:18:30,449 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:31,242 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-04-18 07:18:31,405 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:18:31,658 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-04-18 07:18:31,829 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 07:18:32,097 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-04-18 07:18:32,790 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:32,958 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:18:33,197 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:33,371 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:18:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:33,538 INFO L93 Difference]: Finished difference Result 5549 states and 13720 transitions. [2020-04-18 07:18:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:18:33,538 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:18:33,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:33,544 INFO L225 Difference]: With dead ends: 5549 [2020-04-18 07:18:33,544 INFO L226 Difference]: Without dead ends: 5549 [2020-04-18 07:18:33,545 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:18:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2020-04-18 07:18:33,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 3717. [2020-04-18 07:18:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3717 states. [2020-04-18 07:18:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 9696 transitions. [2020-04-18 07:18:33,617 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 9696 transitions. Word has length 97 [2020-04-18 07:18:33,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:33,617 INFO L479 AbstractCegarLoop]: Abstraction has 3717 states and 9696 transitions. [2020-04-18 07:18:33,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:18:33,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 9696 transitions. [2020-04-18 07:18:33,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:33,625 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:33,625 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:33,626 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:33,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:33,626 INFO L82 PathProgramCache]: Analyzing trace with hash -668368306, now seen corresponding path program 10 times [2020-04-18 07:18:33,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:33,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992394931] [2020-04-18 07:18:33,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:34,798 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 07:18:34,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992394931] [2020-04-18 07:18:34,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:34,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:18:34,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347142798] [2020-04-18 07:18:34,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:18:34,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:34,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:18:34,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:18:34,801 INFO L87 Difference]: Start difference. First operand 3717 states and 9696 transitions. Second operand 18 states. [2020-04-18 07:18:35,602 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-04-18 07:18:36,271 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:18:36,491 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:18:36,654 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:36,841 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-04-18 07:18:37,048 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:18:37,557 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:18:37,714 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-04-18 07:18:37,960 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:18:38,131 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:18:38,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:38,296 INFO L93 Difference]: Finished difference Result 5131 states and 12850 transitions. [2020-04-18 07:18:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 07:18:38,296 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:18:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:38,302 INFO L225 Difference]: With dead ends: 5131 [2020-04-18 07:18:38,302 INFO L226 Difference]: Without dead ends: 5131 [2020-04-18 07:18:38,303 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:18:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2020-04-18 07:18:38,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 3623. [2020-04-18 07:18:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3623 states. [2020-04-18 07:18:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 9480 transitions. [2020-04-18 07:18:38,377 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 9480 transitions. Word has length 97 [2020-04-18 07:18:38,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:38,378 INFO L479 AbstractCegarLoop]: Abstraction has 3623 states and 9480 transitions. [2020-04-18 07:18:38,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:18:38,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 9480 transitions. [2020-04-18 07:18:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:38,386 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:38,386 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:38,386 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:38,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:38,386 INFO L82 PathProgramCache]: Analyzing trace with hash 198702802, now seen corresponding path program 11 times [2020-04-18 07:18:38,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:38,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859653334] [2020-04-18 07:18:38,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:39,698 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 07:18:39,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859653334] [2020-04-18 07:18:39,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:39,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:18:39,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267214766] [2020-04-18 07:18:39,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:18:39,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:39,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:18:39,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:18:39,701 INFO L87 Difference]: Start difference. First operand 3623 states and 9480 transitions. Second operand 20 states. [2020-04-18 07:18:40,638 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:18:40,831 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:18:41,063 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-04-18 07:18:41,545 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:18:41,756 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-04-18 07:18:42,212 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:18:42,364 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:18:42,537 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 07:18:42,703 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-04-18 07:18:42,865 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:18:43,008 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:18:43,198 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-04-18 07:18:43,348 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:18:43,506 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-04-18 07:18:43,638 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:18:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:43,650 INFO L93 Difference]: Finished difference Result 6558 states and 16565 transitions. [2020-04-18 07:18:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 07:18:43,650 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:18:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:43,658 INFO L225 Difference]: With dead ends: 6558 [2020-04-18 07:18:43,658 INFO L226 Difference]: Without dead ends: 6558 [2020-04-18 07:18:43,659 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=458, Invalid=1102, Unknown=0, NotChecked=0, Total=1560 [2020-04-18 07:18:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6558 states. [2020-04-18 07:18:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6558 to 3645. [2020-04-18 07:18:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3645 states. [2020-04-18 07:18:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 9546 transitions. [2020-04-18 07:18:43,751 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 9546 transitions. Word has length 97 [2020-04-18 07:18:43,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:43,752 INFO L479 AbstractCegarLoop]: Abstraction has 3645 states and 9546 transitions. [2020-04-18 07:18:43,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:18:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 9546 transitions. [2020-04-18 07:18:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:43,759 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:43,760 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:43,760 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:43,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:43,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1832430448, now seen corresponding path program 12 times [2020-04-18 07:18:43,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:43,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417988308] [2020-04-18 07:18:43,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:44,281 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-04-18 07:18:45,227 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 07:18:45,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417988308] [2020-04-18 07:18:45,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:45,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:18:45,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486848452] [2020-04-18 07:18:45,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:18:45,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:45,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:18:45,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:18:45,230 INFO L87 Difference]: Start difference. First operand 3645 states and 9546 transitions. Second operand 18 states. [2020-04-18 07:18:46,087 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:18:46,268 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:18:46,423 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:46,632 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-04-18 07:18:47,106 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:18:47,307 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:18:47,780 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:18:47,931 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:18:48,120 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-04-18 07:18:48,284 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-04-18 07:18:48,486 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:18:48,629 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:18:48,830 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:18:48,988 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:49,168 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:49,298 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-04-18 07:18:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:49,308 INFO L93 Difference]: Finished difference Result 7502 states and 18795 transitions. [2020-04-18 07:18:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-04-18 07:18:49,308 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:18:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:49,316 INFO L225 Difference]: With dead ends: 7502 [2020-04-18 07:18:49,316 INFO L226 Difference]: Without dead ends: 7502 [2020-04-18 07:18:49,317 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 07:18:49,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2020-04-18 07:18:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 3678. [2020-04-18 07:18:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3678 states. [2020-04-18 07:18:49,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 9645 transitions. [2020-04-18 07:18:49,391 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 9645 transitions. Word has length 97 [2020-04-18 07:18:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:49,392 INFO L479 AbstractCegarLoop]: Abstraction has 3678 states and 9645 transitions. [2020-04-18 07:18:49,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:18:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 9645 transitions. [2020-04-18 07:18:49,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:49,399 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:49,400 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:49,400 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:49,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:49,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1299015536, now seen corresponding path program 2 times [2020-04-18 07:18:49,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:49,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634130353] [2020-04-18 07:18:49,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:50,106 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 07:18:50,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634130353] [2020-04-18 07:18:50,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:50,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:18:50,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776208423] [2020-04-18 07:18:50,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:18:50,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:50,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:18:50,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:18:50,108 INFO L87 Difference]: Start difference. First operand 3678 states and 9645 transitions. Second operand 17 states. [2020-04-18 07:18:52,405 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-04-18 07:18:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:52,608 INFO L93 Difference]: Finished difference Result 5832 states and 15206 transitions. [2020-04-18 07:18:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-04-18 07:18:52,609 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:18:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:52,617 INFO L225 Difference]: With dead ends: 5832 [2020-04-18 07:18:52,618 INFO L226 Difference]: Without dead ends: 5762 [2020-04-18 07:18:52,618 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=409, Invalid=851, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:18:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2020-04-18 07:18:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 3937. [2020-04-18 07:18:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3937 states. [2020-04-18 07:18:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 10311 transitions. [2020-04-18 07:18:52,684 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 10311 transitions. Word has length 97 [2020-04-18 07:18:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:52,684 INFO L479 AbstractCegarLoop]: Abstraction has 3937 states and 10311 transitions. [2020-04-18 07:18:52,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:18:52,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 10311 transitions. [2020-04-18 07:18:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:52,690 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:52,690 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:52,690 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:52,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:52,691 INFO L82 PathProgramCache]: Analyzing trace with hash 723131918, now seen corresponding path program 13 times [2020-04-18 07:18:52,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:52,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349892238] [2020-04-18 07:18:52,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:53,854 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 07:18:53,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349892238] [2020-04-18 07:18:53,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:53,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:18:53,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845186526] [2020-04-18 07:18:53,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:18:53,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:53,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:18:53,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:18:53,855 INFO L87 Difference]: Start difference. First operand 3937 states and 10311 transitions. Second operand 18 states. [2020-04-18 07:18:54,861 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:18:55,045 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:18:55,198 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:55,419 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-04-18 07:18:55,966 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:56,132 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-04-18 07:18:56,316 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:18:56,878 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:57,033 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:18:57,227 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-04-18 07:18:57,386 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-04-18 07:18:57,575 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:57,724 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:18:57,927 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-04-18 07:18:58,081 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:18:58,261 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-04-18 07:18:58,392 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-04-18 07:18:58,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:58,404 INFO L93 Difference]: Finished difference Result 8252 states and 20636 transitions. [2020-04-18 07:18:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-04-18 07:18:58,405 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:18:58,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:58,414 INFO L225 Difference]: With dead ends: 8252 [2020-04-18 07:18:58,414 INFO L226 Difference]: Without dead ends: 8252 [2020-04-18 07:18:58,415 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2020-04-18 07:18:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2020-04-18 07:18:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 3871. [2020-04-18 07:18:58,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3871 states. [2020-04-18 07:18:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3871 states to 3871 states and 10113 transitions. [2020-04-18 07:18:58,492 INFO L78 Accepts]: Start accepts. Automaton has 3871 states and 10113 transitions. Word has length 97 [2020-04-18 07:18:58,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:58,492 INFO L479 AbstractCegarLoop]: Abstraction has 3871 states and 10113 transitions. [2020-04-18 07:18:58,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:18:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3871 states and 10113 transitions. [2020-04-18 07:18:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:18:58,498 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:58,498 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:58,498 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:18:58,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:58,499 INFO L82 PathProgramCache]: Analyzing trace with hash 106426570, now seen corresponding path program 14 times [2020-04-18 07:18:58,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:58,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16924624] [2020-04-18 07:18:58,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:59,844 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 07:18:59,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16924624] [2020-04-18 07:18:59,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:59,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:18:59,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625320580] [2020-04-18 07:18:59,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:18:59,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:59,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:18:59,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:18:59,845 INFO L87 Difference]: Start difference. First operand 3871 states and 10113 transitions. Second operand 20 states. [2020-04-18 07:19:00,805 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:19:01,000 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 07:19:01,535 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:19:01,699 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:19:01,921 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-04-18 07:19:02,715 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:02,937 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-04-18 07:19:03,065 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-04-18 07:19:03,215 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:03,404 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:19:03,592 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-04-18 07:19:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:03,607 INFO L93 Difference]: Finished difference Result 8490 states and 21311 transitions. [2020-04-18 07:19:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:19:03,608 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:03,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:03,620 INFO L225 Difference]: With dead ends: 8490 [2020-04-18 07:19:03,621 INFO L226 Difference]: Without dead ends: 8490 [2020-04-18 07:19:03,621 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:19:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2020-04-18 07:19:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 3873. [2020-04-18 07:19:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3873 states. [2020-04-18 07:19:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3873 states to 3873 states and 10118 transitions. [2020-04-18 07:19:03,705 INFO L78 Accepts]: Start accepts. Automaton has 3873 states and 10118 transitions. Word has length 97 [2020-04-18 07:19:03,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:03,705 INFO L479 AbstractCegarLoop]: Abstraction has 3873 states and 10118 transitions. [2020-04-18 07:19:03,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:03,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3873 states and 10118 transitions. [2020-04-18 07:19:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:03,712 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:03,712 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:03,713 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:03,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:03,713 INFO L82 PathProgramCache]: Analyzing trace with hash -956031510, now seen corresponding path program 15 times [2020-04-18 07:19:03,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:03,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958112389] [2020-04-18 07:19:03,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:04,727 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 07:19:04,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958112389] [2020-04-18 07:19:04,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:04,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:19:04,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720119161] [2020-04-18 07:19:04,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:19:04,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:04,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:19:04,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:19:04,729 INFO L87 Difference]: Start difference. First operand 3873 states and 10118 transitions. Second operand 18 states. [2020-04-18 07:19:05,686 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-04-18 07:19:05,883 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:19:06,406 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:19:06,568 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:19:06,755 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-04-18 07:19:06,955 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:19:07,566 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:19:07,735 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-04-18 07:19:07,883 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-04-18 07:19:08,036 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:19:08,227 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:19:08,410 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-04-18 07:19:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:08,427 INFO L93 Difference]: Finished difference Result 8404 states and 21114 transitions. [2020-04-18 07:19:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:19:08,428 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:19:08,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:08,437 INFO L225 Difference]: With dead ends: 8404 [2020-04-18 07:19:08,438 INFO L226 Difference]: Without dead ends: 8404 [2020-04-18 07:19:08,438 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:19:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2020-04-18 07:19:08,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 3841. [2020-04-18 07:19:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-04-18 07:19:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 10027 transitions. [2020-04-18 07:19:08,517 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 10027 transitions. Word has length 97 [2020-04-18 07:19:08,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:08,517 INFO L479 AbstractCegarLoop]: Abstraction has 3841 states and 10027 transitions. [2020-04-18 07:19:08,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:19:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 10027 transitions. [2020-04-18 07:19:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:08,521 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:08,521 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:08,521 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:08,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1613397856, now seen corresponding path program 3 times [2020-04-18 07:19:08,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:08,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132204709] [2020-04-18 07:19:08,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:09,206 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 07:19:09,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132204709] [2020-04-18 07:19:09,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:09,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:19:09,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929521068] [2020-04-18 07:19:09,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:19:09,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:09,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:19:09,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:19:09,208 INFO L87 Difference]: Start difference. First operand 3841 states and 10027 transitions. Second operand 17 states. [2020-04-18 07:19:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:11,889 INFO L93 Difference]: Finished difference Result 5472 states and 14190 transitions. [2020-04-18 07:19:11,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 07:19:11,897 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:19:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:11,904 INFO L225 Difference]: With dead ends: 5472 [2020-04-18 07:19:11,904 INFO L226 Difference]: Without dead ends: 5419 [2020-04-18 07:19:11,905 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=460, Invalid=872, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:19:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5419 states. [2020-04-18 07:19:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5419 to 4605. [2020-04-18 07:19:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4605 states. [2020-04-18 07:19:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 12161 transitions. [2020-04-18 07:19:11,974 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 12161 transitions. Word has length 97 [2020-04-18 07:19:11,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:11,975 INFO L479 AbstractCegarLoop]: Abstraction has 4605 states and 12161 transitions. [2020-04-18 07:19:11,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:19:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 12161 transitions. [2020-04-18 07:19:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:11,981 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:11,982 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:11,982 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:11,982 INFO L82 PathProgramCache]: Analyzing trace with hash -659421986, now seen corresponding path program 16 times [2020-04-18 07:19:11,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:11,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744929390] [2020-04-18 07:19:11,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:13,112 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 07:19:13,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744929390] [2020-04-18 07:19:13,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:13,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:19:13,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114022473] [2020-04-18 07:19:13,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:19:13,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:13,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:19:13,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:19:13,114 INFO L87 Difference]: Start difference. First operand 4605 states and 12161 transitions. Second operand 20 states. [2020-04-18 07:19:13,935 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:19:14,117 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:19:14,624 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:19:14,815 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-04-18 07:19:15,234 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:15,444 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:19:15,586 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:15,755 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:19:15,899 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:15,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:15,906 INFO L93 Difference]: Finished difference Result 7620 states and 19361 transitions. [2020-04-18 07:19:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:19:15,907 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:15,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:15,915 INFO L225 Difference]: With dead ends: 7620 [2020-04-18 07:19:15,916 INFO L226 Difference]: Without dead ends: 7620 [2020-04-18 07:19:15,916 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:19:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7620 states. [2020-04-18 07:19:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7620 to 4788. [2020-04-18 07:19:15,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4788 states. [2020-04-18 07:19:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4788 states to 4788 states and 12667 transitions. [2020-04-18 07:19:15,990 INFO L78 Accepts]: Start accepts. Automaton has 4788 states and 12667 transitions. Word has length 97 [2020-04-18 07:19:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:15,991 INFO L479 AbstractCegarLoop]: Abstraction has 4788 states and 12667 transitions. [2020-04-18 07:19:15,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4788 states and 12667 transitions. [2020-04-18 07:19:15,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:15,996 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:15,996 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:15,996 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash 794932518, now seen corresponding path program 17 times [2020-04-18 07:19:15,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:15,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602739532] [2020-04-18 07:19:15,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:17,267 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 07:19:17,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602739532] [2020-04-18 07:19:17,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:17,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:19:17,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179173663] [2020-04-18 07:19:17,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:19:17,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:17,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:19:17,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:19:17,270 INFO L87 Difference]: Start difference. First operand 4788 states and 12667 transitions. Second operand 18 states. [2020-04-18 07:19:17,961 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-04-18 07:19:18,122 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:18,314 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:19:18,537 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-04-18 07:19:18,990 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-04-18 07:19:19,380 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-18 07:19:19,568 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-04-18 07:19:19,738 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-18 07:19:19,929 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-04-18 07:19:20,105 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-04-18 07:19:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:20,117 INFO L93 Difference]: Finished difference Result 7335 states and 18643 transitions. [2020-04-18 07:19:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:19:20,117 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:19:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:20,125 INFO L225 Difference]: With dead ends: 7335 [2020-04-18 07:19:20,125 INFO L226 Difference]: Without dead ends: 7335 [2020-04-18 07:19:20,126 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:19:20,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7335 states. [2020-04-18 07:19:20,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7335 to 4590. [2020-04-18 07:19:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4590 states. [2020-04-18 07:19:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 12106 transitions. [2020-04-18 07:19:20,251 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 12106 transitions. Word has length 97 [2020-04-18 07:19:20,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:20,251 INFO L479 AbstractCegarLoop]: Abstraction has 4590 states and 12106 transitions. [2020-04-18 07:19:20,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:19:20,252 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 12106 transitions. [2020-04-18 07:19:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:20,256 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:20,256 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:20,256 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:20,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:20,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1958453830, now seen corresponding path program 4 times [2020-04-18 07:19:20,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:20,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883492277] [2020-04-18 07:19:20,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:20,924 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 07:19:20,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883492277] [2020-04-18 07:19:20,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:20,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:19:20,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424052941] [2020-04-18 07:19:20,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:19:20,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:20,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:19:20,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:19:20,926 INFO L87 Difference]: Start difference. First operand 4590 states and 12106 transitions. Second operand 17 states. [2020-04-18 07:19:23,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:23,755 INFO L93 Difference]: Finished difference Result 6149 states and 15878 transitions. [2020-04-18 07:19:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 07:19:23,756 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:19:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:23,763 INFO L225 Difference]: With dead ends: 6149 [2020-04-18 07:19:23,763 INFO L226 Difference]: Without dead ends: 6089 [2020-04-18 07:19:23,764 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=437, Invalid=895, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:19:23,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2020-04-18 07:19:23,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 4554. [2020-04-18 07:19:23,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4554 states. [2020-04-18 07:19:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 12024 transitions. [2020-04-18 07:19:23,827 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 12024 transitions. Word has length 97 [2020-04-18 07:19:23,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:23,828 INFO L479 AbstractCegarLoop]: Abstraction has 4554 states and 12024 transitions. [2020-04-18 07:19:23,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:19:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 12024 transitions. [2020-04-18 07:19:23,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:23,833 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:23,833 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:23,833 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:23,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:23,834 INFO L82 PathProgramCache]: Analyzing trace with hash -314366012, now seen corresponding path program 18 times [2020-04-18 07:19:23,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:23,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790710453] [2020-04-18 07:19:23,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:24,767 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 07:19:24,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790710453] [2020-04-18 07:19:24,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:24,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:19:24,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386290374] [2020-04-18 07:19:24,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:19:24,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:24,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:19:24,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:19:24,769 INFO L87 Difference]: Start difference. First operand 4554 states and 12024 transitions. Second operand 18 states. [2020-04-18 07:19:25,673 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:25,867 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:19:26,100 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-04-18 07:19:26,564 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-04-18 07:19:26,746 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-04-18 07:19:27,165 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-04-18 07:19:27,348 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-04-18 07:19:27,511 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-04-18 07:19:27,697 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-04-18 07:19:27,874 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:19:27,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:27,886 INFO L93 Difference]: Finished difference Result 7279 states and 18462 transitions. [2020-04-18 07:19:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-04-18 07:19:27,887 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:19:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:27,895 INFO L225 Difference]: With dead ends: 7279 [2020-04-18 07:19:27,895 INFO L226 Difference]: Without dead ends: 7279 [2020-04-18 07:19:27,896 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 07:19:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7279 states. [2020-04-18 07:19:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7279 to 4482. [2020-04-18 07:19:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4482 states. [2020-04-18 07:19:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4482 states to 4482 states and 11811 transitions. [2020-04-18 07:19:27,975 INFO L78 Accepts]: Start accepts. Automaton has 4482 states and 11811 transitions. Word has length 97 [2020-04-18 07:19:27,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:27,975 INFO L479 AbstractCegarLoop]: Abstraction has 4482 states and 11811 transitions. [2020-04-18 07:19:27,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:19:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4482 states and 11811 transitions. [2020-04-18 07:19:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:27,980 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:27,980 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:27,980 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:27,980 INFO L82 PathProgramCache]: Analyzing trace with hash 316365048, now seen corresponding path program 19 times [2020-04-18 07:19:27,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:27,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264895454] [2020-04-18 07:19:27,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:29,107 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 07:19:29,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264895454] [2020-04-18 07:19:29,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:29,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:19:29,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462683671] [2020-04-18 07:19:29,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:19:29,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:29,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:19:29,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:19:29,109 INFO L87 Difference]: Start difference. First operand 4482 states and 11811 transitions. Second operand 20 states. [2020-04-18 07:19:29,994 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:19:30,166 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:19:30,671 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:19:30,829 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:19:31,050 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-04-18 07:19:31,508 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-04-18 07:19:31,681 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-04-18 07:19:31,836 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-04-18 07:19:31,959 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-04-18 07:19:32,135 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:32,295 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:19:32,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:32,301 INFO L93 Difference]: Finished difference Result 7352 states and 18193 transitions. [2020-04-18 07:19:32,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:19:32,302 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:32,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:32,310 INFO L225 Difference]: With dead ends: 7352 [2020-04-18 07:19:32,310 INFO L226 Difference]: Without dead ends: 7352 [2020-04-18 07:19:32,316 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:19:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2020-04-18 07:19:32,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 4498. [2020-04-18 07:19:32,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4498 states. [2020-04-18 07:19:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 11851 transitions. [2020-04-18 07:19:32,396 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 11851 transitions. Word has length 97 [2020-04-18 07:19:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:32,397 INFO L479 AbstractCegarLoop]: Abstraction has 4498 states and 11851 transitions. [2020-04-18 07:19:32,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 11851 transitions. [2020-04-18 07:19:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:32,401 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:32,401 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:32,401 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:32,401 INFO L82 PathProgramCache]: Analyzing trace with hash 434606814, now seen corresponding path program 20 times [2020-04-18 07:19:32,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:32,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511668951] [2020-04-18 07:19:32,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:33,747 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 07:19:33,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511668951] [2020-04-18 07:19:33,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:33,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:19:33,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760398595] [2020-04-18 07:19:33,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:19:33,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:33,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:19:33,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:19:33,749 INFO L87 Difference]: Start difference. First operand 4498 states and 11851 transitions. Second operand 20 states. [2020-04-18 07:19:34,772 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:19:34,964 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:19:35,562 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:19:35,734 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:35,931 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-04-18 07:19:36,147 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-04-18 07:19:36,804 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-04-18 07:19:36,985 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-04-18 07:19:37,132 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-04-18 07:19:37,424 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:37,581 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:19:37,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:37,588 INFO L93 Difference]: Finished difference Result 6927 states and 17316 transitions. [2020-04-18 07:19:37,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:19:37,589 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:37,595 INFO L225 Difference]: With dead ends: 6927 [2020-04-18 07:19:37,596 INFO L226 Difference]: Without dead ends: 6927 [2020-04-18 07:19:37,596 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:19:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2020-04-18 07:19:37,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 4486. [2020-04-18 07:19:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4486 states. [2020-04-18 07:19:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 11821 transitions. [2020-04-18 07:19:37,672 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 11821 transitions. Word has length 97 [2020-04-18 07:19:37,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:37,672 INFO L479 AbstractCegarLoop]: Abstraction has 4486 states and 11821 transitions. [2020-04-18 07:19:37,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 11821 transitions. [2020-04-18 07:19:37,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:37,676 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:37,676 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:37,677 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:37,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1281810996, now seen corresponding path program 21 times [2020-04-18 07:19:37,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:37,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582038542] [2020-04-18 07:19:37,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:38,971 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 07:19:38,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582038542] [2020-04-18 07:19:38,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:38,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:19:38,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520409697] [2020-04-18 07:19:38,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:19:38,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:38,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:19:38,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:19:38,973 INFO L87 Difference]: Start difference. First operand 4486 states and 11821 transitions. Second operand 20 states. [2020-04-18 07:19:40,275 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:19:40,474 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:19:40,704 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-04-18 07:19:41,180 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-04-18 07:19:41,351 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:41,501 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:19:41,740 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:41,935 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:42,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:42,104 INFO L93 Difference]: Finished difference Result 6675 states and 16544 transitions. [2020-04-18 07:19:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:19:42,105 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:42,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:42,112 INFO L225 Difference]: With dead ends: 6675 [2020-04-18 07:19:42,112 INFO L226 Difference]: Without dead ends: 6675 [2020-04-18 07:19:42,113 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:19:42,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2020-04-18 07:19:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 4512. [2020-04-18 07:19:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4512 states. [2020-04-18 07:19:42,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 11886 transitions. [2020-04-18 07:19:42,176 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 11886 transitions. Word has length 97 [2020-04-18 07:19:42,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:42,176 INFO L479 AbstractCegarLoop]: Abstraction has 4512 states and 11886 transitions. [2020-04-18 07:19:42,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 11886 transitions. [2020-04-18 07:19:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:42,182 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:42,182 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:42,182 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:42,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:42,183 INFO L82 PathProgramCache]: Analyzing trace with hash 219352916, now seen corresponding path program 22 times [2020-04-18 07:19:42,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:42,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021436702] [2020-04-18 07:19:42,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:43,134 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 07:19:43,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021436702] [2020-04-18 07:19:43,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:43,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:19:43,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746546192] [2020-04-18 07:19:43,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:19:43,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:43,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:19:43,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:19:43,135 INFO L87 Difference]: Start difference. First operand 4512 states and 11886 transitions. Second operand 18 states. [2020-04-18 07:19:44,323 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 07:19:44,505 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:19:44,677 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-04-18 07:19:44,892 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:19:45,540 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:45,685 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:19:45,907 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:46,062 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:46,229 INFO L93 Difference]: Finished difference Result 6753 states and 16729 transitions. [2020-04-18 07:19:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:19:46,229 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:19:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:46,237 INFO L225 Difference]: With dead ends: 6753 [2020-04-18 07:19:46,237 INFO L226 Difference]: Without dead ends: 6753 [2020-04-18 07:19:46,238 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:19:46,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2020-04-18 07:19:46,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 4508. [2020-04-18 07:19:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4508 states. [2020-04-18 07:19:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 11876 transitions. [2020-04-18 07:19:46,311 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 11876 transitions. Word has length 97 [2020-04-18 07:19:46,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:46,312 INFO L479 AbstractCegarLoop]: Abstraction has 4508 states and 11876 transitions. [2020-04-18 07:19:46,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:19:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 11876 transitions. [2020-04-18 07:19:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:46,317 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:46,317 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:46,317 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:46,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1634424986, now seen corresponding path program 23 times [2020-04-18 07:19:46,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:46,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067718618] [2020-04-18 07:19:46,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:47,318 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 07:19:47,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067718618] [2020-04-18 07:19:47,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:47,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:19:47,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636201428] [2020-04-18 07:19:47,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:19:47,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:47,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:19:47,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:19:47,320 INFO L87 Difference]: Start difference. First operand 4508 states and 11876 transitions. Second operand 18 states. [2020-04-18 07:19:48,409 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:19:48,599 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-04-18 07:19:48,814 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:19:49,194 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-04-18 07:19:49,339 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:49,481 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:19:49,714 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:49,869 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:50,037 INFO L93 Difference]: Finished difference Result 6300 states and 15780 transitions. [2020-04-18 07:19:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:19:50,037 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:19:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:50,045 INFO L225 Difference]: With dead ends: 6300 [2020-04-18 07:19:50,045 INFO L226 Difference]: Without dead ends: 6300 [2020-04-18 07:19:50,045 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:19:50,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6300 states. [2020-04-18 07:19:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6300 to 4490. [2020-04-18 07:19:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4490 states. [2020-04-18 07:19:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 11831 transitions. [2020-04-18 07:19:50,113 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 11831 transitions. Word has length 97 [2020-04-18 07:19:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:50,114 INFO L479 AbstractCegarLoop]: Abstraction has 4490 states and 11831 transitions. [2020-04-18 07:19:50,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:19:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 11831 transitions. [2020-04-18 07:19:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:50,120 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:50,121 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:50,121 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:50,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:50,121 INFO L82 PathProgramCache]: Analyzing trace with hash -260666482, now seen corresponding path program 24 times [2020-04-18 07:19:50,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:50,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621204624] [2020-04-18 07:19:50,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:50,652 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-04-18 07:19:50,780 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2020-04-18 07:19:50,937 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2020-04-18 07:19:51,747 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 07:19:51,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621204624] [2020-04-18 07:19:51,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:51,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:19:51,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266251342] [2020-04-18 07:19:51,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:19:51,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:51,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:19:51,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:19:51,749 INFO L87 Difference]: Start difference. First operand 4490 states and 11831 transitions. Second operand 20 states. [2020-04-18 07:19:52,667 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-04-18 07:19:52,963 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:19:53,240 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-04-18 07:19:53,461 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-04-18 07:19:54,171 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-04-18 07:19:54,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:54,660 INFO L93 Difference]: Finished difference Result 5843 states and 14626 transitions. [2020-04-18 07:19:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:19:54,661 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:54,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:54,667 INFO L225 Difference]: With dead ends: 5843 [2020-04-18 07:19:54,667 INFO L226 Difference]: Without dead ends: 5843 [2020-04-18 07:19:54,668 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:19:54,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2020-04-18 07:19:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 4414. [2020-04-18 07:19:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4414 states. [2020-04-18 07:19:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 11637 transitions. [2020-04-18 07:19:54,728 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 11637 transitions. Word has length 97 [2020-04-18 07:19:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:54,729 INFO L479 AbstractCegarLoop]: Abstraction has 4414 states and 11637 transitions. [2020-04-18 07:19:54,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 11637 transitions. [2020-04-18 07:19:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:54,733 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:54,733 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:54,733 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:54,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1831609658, now seen corresponding path program 25 times [2020-04-18 07:19:54,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:54,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757060001] [2020-04-18 07:19:54,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:56,007 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 07:19:56,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757060001] [2020-04-18 07:19:56,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:56,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:19:56,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243743306] [2020-04-18 07:19:56,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:19:56,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:56,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:19:56,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:19:56,009 INFO L87 Difference]: Start difference. First operand 4414 states and 11637 transitions. Second operand 20 states. [2020-04-18 07:19:57,018 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-04-18 07:19:57,190 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:19:57,421 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-04-18 07:19:57,619 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 07:19:57,860 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-04-18 07:19:58,563 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-04-18 07:19:59,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:59,215 INFO L93 Difference]: Finished difference Result 6299 states and 15570 transitions. [2020-04-18 07:19:59,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:19:59,216 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:19:59,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:59,223 INFO L225 Difference]: With dead ends: 6299 [2020-04-18 07:19:59,223 INFO L226 Difference]: Without dead ends: 6299 [2020-04-18 07:19:59,224 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=311, Invalid=1021, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:19:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6299 states. [2020-04-18 07:19:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6299 to 4418. [2020-04-18 07:19:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4418 states. [2020-04-18 07:19:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4418 states to 4418 states and 11647 transitions. [2020-04-18 07:19:59,295 INFO L78 Accepts]: Start accepts. Automaton has 4418 states and 11647 transitions. Word has length 97 [2020-04-18 07:19:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:59,295 INFO L479 AbstractCegarLoop]: Abstraction has 4418 states and 11647 transitions. [2020-04-18 07:19:59,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:19:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4418 states and 11647 transitions. [2020-04-18 07:19:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:19:59,299 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:59,299 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:59,300 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:19:59,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:59,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1184669256, now seen corresponding path program 26 times [2020-04-18 07:19:59,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:59,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980620964] [2020-04-18 07:19:59,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:00,491 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 07:20:00,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980620964] [2020-04-18 07:20:00,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:00,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:00,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248925070] [2020-04-18 07:20:00,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:00,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:00,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:00,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:00,493 INFO L87 Difference]: Start difference. First operand 4418 states and 11647 transitions. Second operand 18 states. [2020-04-18 07:20:01,554 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 07:20:01,759 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 07:20:01,943 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:20:02,121 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-04-18 07:20:02,327 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:20:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:03,531 INFO L93 Difference]: Finished difference Result 5881 states and 14700 transitions. [2020-04-18 07:20:03,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 07:20:03,532 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:03,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:03,538 INFO L225 Difference]: With dead ends: 5881 [2020-04-18 07:20:03,539 INFO L226 Difference]: Without dead ends: 5881 [2020-04-18 07:20:03,539 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:20:03,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2020-04-18 07:20:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 4402. [2020-04-18 07:20:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4402 states. [2020-04-18 07:20:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 11607 transitions. [2020-04-18 07:20:03,626 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 11607 transitions. Word has length 97 [2020-04-18 07:20:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:03,626 INFO L479 AbstractCegarLoop]: Abstraction has 4402 states and 11607 transitions. [2020-04-18 07:20:03,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 11607 transitions. [2020-04-18 07:20:03,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:03,633 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:03,633 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:03,633 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:03,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:03,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1582856340, now seen corresponding path program 27 times [2020-04-18 07:20:03,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:03,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121359259] [2020-04-18 07:20:03,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:04,161 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-04-18 07:20:04,292 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2020-04-18 07:20:04,434 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2020-04-18 07:20:04,601 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2020-04-18 07:20:04,763 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2020-04-18 07:20:05,412 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 07:20:05,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121359259] [2020-04-18 07:20:05,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:05,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:20:05,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009703232] [2020-04-18 07:20:05,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:20:05,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:05,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:20:05,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:20:05,414 INFO L87 Difference]: Start difference. First operand 4402 states and 11607 transitions. Second operand 20 states. [2020-04-18 07:20:06,730 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:20:06,935 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:20:07,170 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-04-18 07:20:07,974 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-04-18 07:20:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:08,486 INFO L93 Difference]: Finished difference Result 5588 states and 14064 transitions. [2020-04-18 07:20:08,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:20:08,487 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:20:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:08,494 INFO L225 Difference]: With dead ends: 5588 [2020-04-18 07:20:08,494 INFO L226 Difference]: Without dead ends: 5588 [2020-04-18 07:20:08,495 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=288, Invalid=972, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:20:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5588 states. [2020-04-18 07:20:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5588 to 4394. [2020-04-18 07:20:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4394 states. [2020-04-18 07:20:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 11588 transitions. [2020-04-18 07:20:08,558 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 11588 transitions. Word has length 97 [2020-04-18 07:20:08,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:08,558 INFO L479 AbstractCegarLoop]: Abstraction has 4394 states and 11588 transitions. [2020-04-18 07:20:08,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:20:08,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 11588 transitions. [2020-04-18 07:20:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:08,562 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:08,563 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:08,563 INFO L427 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:08,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:08,563 INFO L82 PathProgramCache]: Analyzing trace with hash -304167958, now seen corresponding path program 28 times [2020-04-18 07:20:08,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:08,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554136738] [2020-04-18 07:20:08,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:09,503 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 07:20:09,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554136738] [2020-04-18 07:20:09,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:09,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:09,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296615870] [2020-04-18 07:20:09,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:09,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:09,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:09,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:09,505 INFO L87 Difference]: Start difference. First operand 4394 states and 11588 transitions. Second operand 18 states. [2020-04-18 07:20:10,606 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 07:20:10,793 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:20:10,958 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-04-18 07:20:11,164 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:20:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:12,361 INFO L93 Difference]: Finished difference Result 5859 states and 14642 transitions. [2020-04-18 07:20:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:20:12,362 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:12,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:12,369 INFO L225 Difference]: With dead ends: 5859 [2020-04-18 07:20:12,369 INFO L226 Difference]: Without dead ends: 5859 [2020-04-18 07:20:12,370 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:20:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5859 states. [2020-04-18 07:20:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5859 to 4390. [2020-04-18 07:20:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4390 states. [2020-04-18 07:20:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 11578 transitions. [2020-04-18 07:20:12,445 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 11578 transitions. Word has length 97 [2020-04-18 07:20:12,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:12,445 INFO L479 AbstractCegarLoop]: Abstraction has 4390 states and 11578 transitions. [2020-04-18 07:20:12,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 11578 transitions. [2020-04-18 07:20:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:12,449 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:12,450 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:12,450 INFO L427 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:12,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:12,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1624846816, now seen corresponding path program 29 times [2020-04-18 07:20:12,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:12,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185498364] [2020-04-18 07:20:12,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:13,362 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 07:20:13,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185498364] [2020-04-18 07:20:13,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:13,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:13,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096227904] [2020-04-18 07:20:13,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:13,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:13,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:13,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:13,364 INFO L87 Difference]: Start difference. First operand 4390 states and 11578 transitions. Second operand 18 states. [2020-04-18 07:20:14,639 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:20:14,848 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-04-18 07:20:15,070 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:20:16,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:16,284 INFO L93 Difference]: Finished difference Result 5317 states and 13485 transitions. [2020-04-18 07:20:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:20:16,284 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:16,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:16,290 INFO L225 Difference]: With dead ends: 5317 [2020-04-18 07:20:16,291 INFO L226 Difference]: Without dead ends: 5317 [2020-04-18 07:20:16,291 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:20:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2020-04-18 07:20:16,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 4290. [2020-04-18 07:20:16,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4290 states. [2020-04-18 07:20:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11347 transitions. [2020-04-18 07:20:16,374 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11347 transitions. Word has length 97 [2020-04-18 07:20:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:16,374 INFO L479 AbstractCegarLoop]: Abstraction has 4290 states and 11347 transitions. [2020-04-18 07:20:16,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11347 transitions. [2020-04-18 07:20:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:16,378 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:16,378 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:16,378 INFO L427 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:16,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1992687888, now seen corresponding path program 30 times [2020-04-18 07:20:16,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:16,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800521299] [2020-04-18 07:20:16,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:17,224 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2020-04-18 07:20:18,080 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 07:20:18,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800521299] [2020-04-18 07:20:18,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:18,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:20:18,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085885808] [2020-04-18 07:20:18,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:20:18,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:18,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:20:18,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:20:18,083 INFO L87 Difference]: Start difference. First operand 4290 states and 11347 transitions. Second operand 20 states. [2020-04-18 07:20:18,950 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:20:19,138 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:20:19,350 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-04-18 07:20:19,843 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 07:20:20,039 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-04-18 07:20:20,532 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-04-18 07:20:20,676 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:20:20,852 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-04-18 07:20:21,008 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:20:21,163 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-04-18 07:20:21,306 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:20:21,497 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:20:21,644 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:20:21,816 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:20:21,942 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:20:21,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:21,955 INFO L93 Difference]: Finished difference Result 6000 states and 15323 transitions. [2020-04-18 07:20:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 07:20:21,955 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:20:21,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:21,963 INFO L225 Difference]: With dead ends: 6000 [2020-04-18 07:20:21,963 INFO L226 Difference]: Without dead ends: 6000 [2020-04-18 07:20:21,963 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=459, Invalid=1101, Unknown=0, NotChecked=0, Total=1560 [2020-04-18 07:20:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2020-04-18 07:20:22,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 4224. [2020-04-18 07:20:22,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4224 states. [2020-04-18 07:20:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4224 states to 4224 states and 11160 transitions. [2020-04-18 07:20:22,027 INFO L78 Accepts]: Start accepts. Automaton has 4224 states and 11160 transitions. Word has length 97 [2020-04-18 07:20:22,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:22,027 INFO L479 AbstractCegarLoop]: Abstraction has 4224 states and 11160 transitions. [2020-04-18 07:20:22,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:20:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand 4224 states and 11160 transitions. [2020-04-18 07:20:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:22,031 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:22,031 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:22,031 INFO L427 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:22,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:22,032 INFO L82 PathProgramCache]: Analyzing trace with hash -358960242, now seen corresponding path program 31 times [2020-04-18 07:20:22,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:22,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310751951] [2020-04-18 07:20:22,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:23,209 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 07:20:23,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310751951] [2020-04-18 07:20:23,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:23,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:23,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793819225] [2020-04-18 07:20:23,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:23,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:23,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:23,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:23,210 INFO L87 Difference]: Start difference. First operand 4224 states and 11160 transitions. Second operand 18 states. [2020-04-18 07:20:24,066 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-04-18 07:20:24,266 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-04-18 07:20:24,430 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-04-18 07:20:24,642 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-04-18 07:20:25,177 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:20:25,378 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:20:25,889 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:20:26,035 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:20:26,229 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-04-18 07:20:26,382 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-04-18 07:20:26,545 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:20:26,682 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:20:26,877 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:20:27,029 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:20:27,209 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:20:27,339 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-04-18 07:20:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:27,350 INFO L93 Difference]: Finished difference Result 6944 states and 17553 transitions. [2020-04-18 07:20:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-04-18 07:20:27,351 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:27,359 INFO L225 Difference]: With dead ends: 6944 [2020-04-18 07:20:27,360 INFO L226 Difference]: Without dead ends: 6944 [2020-04-18 07:20:27,360 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 07:20:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6944 states. [2020-04-18 07:20:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6944 to 4257. [2020-04-18 07:20:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4257 states. [2020-04-18 07:20:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4257 states to 4257 states and 11259 transitions. [2020-04-18 07:20:27,433 INFO L78 Accepts]: Start accepts. Automaton has 4257 states and 11259 transitions. Word has length 97 [2020-04-18 07:20:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:27,433 INFO L479 AbstractCegarLoop]: Abstraction has 4257 states and 11259 transitions. [2020-04-18 07:20:27,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4257 states and 11259 transitions. [2020-04-18 07:20:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:27,439 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:27,439 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:27,439 INFO L427 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:27,440 INFO L82 PathProgramCache]: Analyzing trace with hash 804561070, now seen corresponding path program 5 times [2020-04-18 07:20:27,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:27,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970989643] [2020-04-18 07:20:27,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:28,067 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 07:20:28,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970989643] [2020-04-18 07:20:28,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:28,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:20:28,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501814664] [2020-04-18 07:20:28,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:20:28,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:28,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:20:28,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:20:28,069 INFO L87 Difference]: Start difference. First operand 4257 states and 11259 transitions. Second operand 17 states. [2020-04-18 07:20:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:30,799 INFO L93 Difference]: Finished difference Result 5711 states and 14827 transitions. [2020-04-18 07:20:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 07:20:30,800 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:20:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:30,807 INFO L225 Difference]: With dead ends: 5711 [2020-04-18 07:20:30,807 INFO L226 Difference]: Without dead ends: 5641 [2020-04-18 07:20:30,807 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=377, Invalid=813, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:20:30,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5641 states. [2020-04-18 07:20:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5641 to 4377. [2020-04-18 07:20:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2020-04-18 07:20:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 11537 transitions. [2020-04-18 07:20:30,865 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 11537 transitions. Word has length 97 [2020-04-18 07:20:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:30,866 INFO L479 AbstractCegarLoop]: Abstraction has 4377 states and 11537 transitions. [2020-04-18 07:20:30,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:20:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 11537 transitions. [2020-04-18 07:20:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:30,870 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:30,870 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:30,870 INFO L427 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:30,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:30,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1468258772, now seen corresponding path program 32 times [2020-04-18 07:20:30,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:30,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805386409] [2020-04-18 07:20:30,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:31,704 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2020-04-18 07:20:32,220 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 07:20:32,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805386409] [2020-04-18 07:20:32,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:32,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:32,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062608299] [2020-04-18 07:20:32,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:32,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:32,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:32,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:32,222 INFO L87 Difference]: Start difference. First operand 4377 states and 11537 transitions. Second operand 18 states. [2020-04-18 07:20:33,049 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-04-18 07:20:33,233 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-04-18 07:20:33,395 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-04-18 07:20:33,606 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-04-18 07:20:34,074 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:20:34,244 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-04-18 07:20:34,435 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:20:34,929 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-04-18 07:20:35,082 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 07:20:35,268 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-04-18 07:20:35,436 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-04-18 07:20:35,627 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-04-18 07:20:35,769 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 07:20:35,969 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-04-18 07:20:36,124 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-04-18 07:20:36,298 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 07:20:36,431 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-04-18 07:20:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:36,442 INFO L93 Difference]: Finished difference Result 6316 states and 16019 transitions. [2020-04-18 07:20:36,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-04-18 07:20:36,442 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:36,449 INFO L225 Difference]: With dead ends: 6316 [2020-04-18 07:20:36,449 INFO L226 Difference]: Without dead ends: 6316 [2020-04-18 07:20:36,449 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2020-04-18 07:20:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2020-04-18 07:20:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 4344. [2020-04-18 07:20:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4344 states. [2020-04-18 07:20:36,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 11438 transitions. [2020-04-18 07:20:36,508 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 11438 transitions. Word has length 97 [2020-04-18 07:20:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:36,508 INFO L479 AbstractCegarLoop]: Abstraction has 4344 states and 11438 transitions. [2020-04-18 07:20:36,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 11438 transitions. [2020-04-18 07:20:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:36,513 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:36,513 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:36,513 INFO L427 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:36,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2084964120, now seen corresponding path program 33 times [2020-04-18 07:20:36,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:36,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772996782] [2020-04-18 07:20:36,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:37,769 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 07:20:37,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772996782] [2020-04-18 07:20:37,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:37,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:20:37,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390505652] [2020-04-18 07:20:37,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:20:37,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:37,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:20:37,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:20:37,773 INFO L87 Difference]: Start difference. First operand 4344 states and 11438 transitions. Second operand 20 states. [2020-04-18 07:20:38,641 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:20:38,830 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 07:20:39,378 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:20:39,543 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:20:39,756 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-04-18 07:20:40,302 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-04-18 07:20:40,473 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-04-18 07:20:40,736 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-04-18 07:20:40,918 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:20:41,094 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-04-18 07:20:41,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:41,110 INFO L93 Difference]: Finished difference Result 6975 states and 17561 transitions. [2020-04-18 07:20:41,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:20:41,110 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:20:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:41,119 INFO L225 Difference]: With dead ends: 6975 [2020-04-18 07:20:41,119 INFO L226 Difference]: Without dead ends: 6975 [2020-04-18 07:20:41,119 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:20:41,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2020-04-18 07:20:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 4346. [2020-04-18 07:20:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4346 states. [2020-04-18 07:20:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4346 states to 4346 states and 11443 transitions. [2020-04-18 07:20:41,193 INFO L78 Accepts]: Start accepts. Automaton has 4346 states and 11443 transitions. Word has length 97 [2020-04-18 07:20:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:41,193 INFO L479 AbstractCegarLoop]: Abstraction has 4346 states and 11443 transitions. [2020-04-18 07:20:41,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:20:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4346 states and 11443 transitions. [2020-04-18 07:20:41,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:41,199 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:41,199 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:41,199 INFO L427 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:41,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:41,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1147545096, now seen corresponding path program 34 times [2020-04-18 07:20:41,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:41,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822923459] [2020-04-18 07:20:41,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:42,134 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 07:20:42,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822923459] [2020-04-18 07:20:42,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:42,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:42,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049605010] [2020-04-18 07:20:42,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:42,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:42,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:42,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:42,135 INFO L87 Difference]: Start difference. First operand 4346 states and 11443 transitions. Second operand 18 states. [2020-04-18 07:20:42,951 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-04-18 07:20:43,130 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-04-18 07:20:43,569 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:20:43,731 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:20:43,911 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-04-18 07:20:44,099 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-04-18 07:20:44,665 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 07:20:44,840 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-04-18 07:20:45,101 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 07:20:45,275 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-04-18 07:20:45,446 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-04-18 07:20:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:45,462 INFO L93 Difference]: Finished difference Result 6882 states and 17350 transitions. [2020-04-18 07:20:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:20:45,462 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:45,471 INFO L225 Difference]: With dead ends: 6882 [2020-04-18 07:20:45,472 INFO L226 Difference]: Without dead ends: 6882 [2020-04-18 07:20:45,472 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:20:45,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6882 states. [2020-04-18 07:20:45,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6882 to 4333. [2020-04-18 07:20:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4333 states. [2020-04-18 07:20:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 11405 transitions. [2020-04-18 07:20:45,541 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 11405 transitions. Word has length 97 [2020-04-18 07:20:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:45,541 INFO L479 AbstractCegarLoop]: Abstraction has 4333 states and 11405 transitions. [2020-04-18 07:20:45,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 11405 transitions. [2020-04-18 07:20:45,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:45,545 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:45,545 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:45,546 INFO L427 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:45,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:45,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1396458172, now seen corresponding path program 35 times [2020-04-18 07:20:45,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:45,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948390897] [2020-04-18 07:20:45,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:46,540 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 07:20:46,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948390897] [2020-04-18 07:20:46,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:46,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:46,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774341512] [2020-04-18 07:20:46,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:46,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:46,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:46,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:46,541 INFO L87 Difference]: Start difference. First operand 4333 states and 11405 transitions. Second operand 18 states. [2020-04-18 07:20:47,417 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:20:47,652 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:20:47,893 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-04-18 07:20:48,427 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-04-18 07:20:48,918 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-18 07:20:49,095 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-04-18 07:20:49,258 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-18 07:20:49,442 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-04-18 07:20:49,625 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-04-18 07:20:49,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:49,637 INFO L93 Difference]: Finished difference Result 7356 states and 18710 transitions. [2020-04-18 07:20:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:20:49,638 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:49,647 INFO L225 Difference]: With dead ends: 7356 [2020-04-18 07:20:49,647 INFO L226 Difference]: Without dead ends: 7356 [2020-04-18 07:20:49,647 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:20:49,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7356 states. [2020-04-18 07:20:49,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7356 to 4399. [2020-04-18 07:20:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4399 states. [2020-04-18 07:20:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4399 states to 4399 states and 11603 transitions. [2020-04-18 07:20:49,730 INFO L78 Accepts]: Start accepts. Automaton has 4399 states and 11603 transitions. Word has length 97 [2020-04-18 07:20:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:49,731 INFO L479 AbstractCegarLoop]: Abstraction has 4399 states and 11603 transitions. [2020-04-18 07:20:49,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:49,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4399 states and 11603 transitions. [2020-04-18 07:20:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:49,735 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:49,736 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:49,736 INFO L427 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:49,736 INFO L82 PathProgramCache]: Analyzing trace with hash -232936860, now seen corresponding path program 6 times [2020-04-18 07:20:49,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:49,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754857405] [2020-04-18 07:20:49,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:50,351 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 07:20:50,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754857405] [2020-04-18 07:20:50,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:50,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:20:50,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120265110] [2020-04-18 07:20:50,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:20:50,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:50,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:20:50,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:20:50,353 INFO L87 Difference]: Start difference. First operand 4399 states and 11603 transitions. Second operand 17 states. [2020-04-18 07:20:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:53,362 INFO L93 Difference]: Finished difference Result 6222 states and 16154 transitions. [2020-04-18 07:20:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 07:20:53,362 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:20:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:53,370 INFO L225 Difference]: With dead ends: 6222 [2020-04-18 07:20:53,370 INFO L226 Difference]: Without dead ends: 6142 [2020-04-18 07:20:53,371 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:20:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6142 states. [2020-04-18 07:20:53,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6142 to 4419. [2020-04-18 07:20:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4419 states. [2020-04-18 07:20:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 11651 transitions. [2020-04-18 07:20:53,431 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 11651 transitions. Word has length 97 [2020-04-18 07:20:53,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:53,432 INFO L479 AbstractCegarLoop]: Abstraction has 4419 states and 11651 transitions. [2020-04-18 07:20:53,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:20:53,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 11651 transitions. [2020-04-18 07:20:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:53,436 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:53,436 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:53,436 INFO L427 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:53,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:53,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1789210594, now seen corresponding path program 36 times [2020-04-18 07:20:53,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:53,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102180444] [2020-04-18 07:20:53,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:54,484 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 07:20:54,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102180444] [2020-04-18 07:20:54,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:54,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:54,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724797136] [2020-04-18 07:20:54,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:54,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:54,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:54,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:54,486 INFO L87 Difference]: Start difference. First operand 4419 states and 11651 transitions. Second operand 18 states. [2020-04-18 07:20:55,310 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:20:55,516 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:20:55,753 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-04-18 07:20:56,224 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-04-18 07:20:56,408 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-04-18 07:20:56,875 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-04-18 07:20:57,060 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-04-18 07:20:57,229 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-04-18 07:20:57,416 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-04-18 07:20:57,599 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:20:57,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:57,609 INFO L93 Difference]: Finished difference Result 6967 states and 17831 transitions. [2020-04-18 07:20:57,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-04-18 07:20:57,609 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:20:57,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:57,617 INFO L225 Difference]: With dead ends: 6967 [2020-04-18 07:20:57,617 INFO L226 Difference]: Without dead ends: 6967 [2020-04-18 07:20:57,618 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 07:20:57,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6967 states. [2020-04-18 07:20:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6967 to 4386. [2020-04-18 07:20:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4386 states. [2020-04-18 07:20:57,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 11552 transitions. [2020-04-18 07:20:57,680 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 11552 transitions. Word has length 97 [2020-04-18 07:20:57,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:57,680 INFO L479 AbstractCegarLoop]: Abstraction has 4386 states and 11552 transitions. [2020-04-18 07:20:57,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:20:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 11552 transitions. [2020-04-18 07:20:57,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:20:57,684 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:57,685 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:57,685 INFO L427 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:20:57,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:57,685 INFO L82 PathProgramCache]: Analyzing trace with hash 166184632, now seen corresponding path program 37 times [2020-04-18 07:20:57,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:57,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876853172] [2020-04-18 07:20:57,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:58,655 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 07:20:58,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876853172] [2020-04-18 07:20:58,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:58,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:20:58,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652802380] [2020-04-18 07:20:58,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:20:58,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:58,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:20:58,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:20:58,657 INFO L87 Difference]: Start difference. First operand 4386 states and 11552 transitions. Second operand 18 states. [2020-04-18 07:20:59,464 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:20:59,839 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:21:00,026 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-04-18 07:21:00,241 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:21:00,636 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:21:00,819 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:21:00,994 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-04-18 07:21:01,119 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-04-18 07:21:01,269 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:21:01,452 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:21:01,631 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:21:01,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:01,646 INFO L93 Difference]: Finished difference Result 6319 states and 16127 transitions. [2020-04-18 07:21:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:21:01,647 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:21:01,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:01,655 INFO L225 Difference]: With dead ends: 6319 [2020-04-18 07:21:01,655 INFO L226 Difference]: Without dead ends: 6319 [2020-04-18 07:21:01,655 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:21:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2020-04-18 07:21:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 4353. [2020-04-18 07:21:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4353 states. [2020-04-18 07:21:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4353 states to 4353 states and 11453 transitions. [2020-04-18 07:21:01,717 INFO L78 Accepts]: Start accepts. Automaton has 4353 states and 11453 transitions. Word has length 97 [2020-04-18 07:21:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:01,717 INFO L479 AbstractCegarLoop]: Abstraction has 4353 states and 11453 transitions. [2020-04-18 07:21:01,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:21:01,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4353 states and 11453 transitions. [2020-04-18 07:21:01,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:01,722 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:01,722 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:01,722 INFO L427 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:01,722 INFO L82 PathProgramCache]: Analyzing trace with hash -909579694, now seen corresponding path program 38 times [2020-04-18 07:21:01,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:01,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145580504] [2020-04-18 07:21:01,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:02,963 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 07:21:02,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145580504] [2020-04-18 07:21:02,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:02,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:21:02,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967654338] [2020-04-18 07:21:02,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:21:02,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:02,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:21:02,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:21:02,965 INFO L87 Difference]: Start difference. First operand 4353 states and 11453 transitions. Second operand 20 states. [2020-04-18 07:21:04,160 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-04-18 07:21:04,315 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:21:04,548 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:21:04,785 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-04-18 07:21:05,344 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-04-18 07:21:05,531 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-04-18 07:21:05,690 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-04-18 07:21:05,923 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-04-18 07:21:06,091 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-04-18 07:21:06,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:06,285 INFO L93 Difference]: Finished difference Result 6748 states and 17039 transitions. [2020-04-18 07:21:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:21:06,286 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:21:06,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:06,294 INFO L225 Difference]: With dead ends: 6748 [2020-04-18 07:21:06,294 INFO L226 Difference]: Without dead ends: 6748 [2020-04-18 07:21:06,295 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 07:21:06,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6748 states. [2020-04-18 07:21:06,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6748 to 4353. [2020-04-18 07:21:06,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4353 states. [2020-04-18 07:21:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4353 states to 4353 states and 11453 transitions. [2020-04-18 07:21:06,367 INFO L78 Accepts]: Start accepts. Automaton has 4353 states and 11453 transitions. Word has length 97 [2020-04-18 07:21:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:06,368 INFO L479 AbstractCegarLoop]: Abstraction has 4353 states and 11453 transitions. [2020-04-18 07:21:06,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:21:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4353 states and 11453 transitions. [2020-04-18 07:21:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:06,373 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:06,373 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:06,373 INFO L427 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:06,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:06,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1972037774, now seen corresponding path program 39 times [2020-04-18 07:21:06,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:06,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643514591] [2020-04-18 07:21:06,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:07,266 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 07:21:07,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643514591] [2020-04-18 07:21:07,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:07,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:21:07,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242176355] [2020-04-18 07:21:07,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:21:07,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:07,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:21:07,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:21:07,268 INFO L87 Difference]: Start difference. First operand 4353 states and 11453 transitions. Second operand 18 states. [2020-04-18 07:21:08,410 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-04-18 07:21:08,606 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-04-18 07:21:08,779 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-04-18 07:21:08,993 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:21:09,661 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:21:09,848 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:21:10,079 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:21:10,241 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:21:10,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:10,415 INFO L93 Difference]: Finished difference Result 6886 states and 17327 transitions. [2020-04-18 07:21:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:21:10,415 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:21:10,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:10,422 INFO L225 Difference]: With dead ends: 6886 [2020-04-18 07:21:10,422 INFO L226 Difference]: Without dead ends: 6886 [2020-04-18 07:21:10,422 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:21:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6886 states. [2020-04-18 07:21:10,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 4351. [2020-04-18 07:21:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4351 states. [2020-04-18 07:21:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 11448 transitions. [2020-04-18 07:21:10,483 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 11448 transitions. Word has length 97 [2020-04-18 07:21:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:10,483 INFO L479 AbstractCegarLoop]: Abstraction has 4351 states and 11448 transitions. [2020-04-18 07:21:10,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:21:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 11448 transitions. [2020-04-18 07:21:10,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:10,487 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:10,487 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:10,487 INFO L427 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:10,487 INFO L82 PathProgramCache]: Analyzing trace with hash 469151620, now seen corresponding path program 40 times [2020-04-18 07:21:10,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:10,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314158827] [2020-04-18 07:21:10,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:11,384 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 07:21:11,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314158827] [2020-04-18 07:21:11,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:11,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:21:11,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986922726] [2020-04-18 07:21:11,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:21:11,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:21:11,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:21:11,385 INFO L87 Difference]: Start difference. First operand 4351 states and 11448 transitions. Second operand 18 states. [2020-04-18 07:21:12,448 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:21:12,646 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-04-18 07:21:12,853 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-04-18 07:21:13,414 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:21:13,568 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:21:13,791 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:21:13,948 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:21:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:14,124 INFO L93 Difference]: Finished difference Result 6410 states and 16327 transitions. [2020-04-18 07:21:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 07:21:14,124 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:21:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:14,131 INFO L225 Difference]: With dead ends: 6410 [2020-04-18 07:21:14,131 INFO L226 Difference]: Without dead ends: 6410 [2020-04-18 07:21:14,132 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:21:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6410 states. [2020-04-18 07:21:14,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6410 to 4326. [2020-04-18 07:21:14,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4326 states. [2020-04-18 07:21:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 11380 transitions. [2020-04-18 07:21:14,190 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 11380 transitions. Word has length 97 [2020-04-18 07:21:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:14,190 INFO L479 AbstractCegarLoop]: Abstraction has 4326 states and 11380 transitions. [2020-04-18 07:21:14,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:21:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 11380 transitions. [2020-04-18 07:21:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:14,195 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:14,195 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:14,195 INFO L427 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:14,195 INFO L82 PathProgramCache]: Analyzing trace with hash -529678418, now seen corresponding path program 7 times [2020-04-18 07:21:14,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:14,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416126824] [2020-04-18 07:21:14,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:14,803 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 07:21:14,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416126824] [2020-04-18 07:21:14,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:14,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-04-18 07:21:14,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978585546] [2020-04-18 07:21:14,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 07:21:14,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:14,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 07:21:14,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-04-18 07:21:14,805 INFO L87 Difference]: Start difference. First operand 4326 states and 11380 transitions. Second operand 16 states. [2020-04-18 07:21:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:17,579 INFO L93 Difference]: Finished difference Result 5144 states and 13310 transitions. [2020-04-18 07:21:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 07:21:17,579 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 97 [2020-04-18 07:21:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:17,586 INFO L225 Difference]: With dead ends: 5144 [2020-04-18 07:21:17,586 INFO L226 Difference]: Without dead ends: 5075 [2020-04-18 07:21:17,586 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=508, Invalid=974, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 07:21:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2020-04-18 07:21:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 3807. [2020-04-18 07:21:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-04-18 07:21:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 9968 transitions. [2020-04-18 07:21:17,641 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 9968 transitions. Word has length 97 [2020-04-18 07:21:17,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:17,641 INFO L479 AbstractCegarLoop]: Abstraction has 3807 states and 9968 transitions. [2020-04-18 07:21:17,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 07:21:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 9968 transitions. [2020-04-18 07:21:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:17,645 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:17,645 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:17,645 INFO L427 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:17,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:17,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1492469036, now seen corresponding path program 41 times [2020-04-18 07:21:17,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:17,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916007277] [2020-04-18 07:21:17,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:18,865 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 07:21:18,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916007277] [2020-04-18 07:21:18,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:18,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 07:21:18,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824819827] [2020-04-18 07:21:18,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:21:18,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:18,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:21:18,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:21:18,867 INFO L87 Difference]: Start difference. First operand 3807 states and 9968 transitions. Second operand 20 states. [2020-04-18 07:21:19,687 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-04-18 07:21:20,173 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-04-18 07:21:20,376 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-04-18 07:21:20,578 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-04-18 07:21:20,979 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:21:21,128 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:21:21,259 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:21:21,415 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:21:21,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:21,561 INFO L93 Difference]: Finished difference Result 5452 states and 13784 transitions. [2020-04-18 07:21:21,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:21:21,561 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-04-18 07:21:21,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:21,568 INFO L225 Difference]: With dead ends: 5452 [2020-04-18 07:21:21,568 INFO L226 Difference]: Without dead ends: 5452 [2020-04-18 07:21:21,568 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=282, Invalid=840, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:21:21,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5452 states. [2020-04-18 07:21:21,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5452 to 3843. [2020-04-18 07:21:21,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3843 states. [2020-04-18 07:21:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 10052 transitions. [2020-04-18 07:21:21,633 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 10052 transitions. Word has length 97 [2020-04-18 07:21:21,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:21,633 INFO L479 AbstractCegarLoop]: Abstraction has 3843 states and 10052 transitions. [2020-04-18 07:21:21,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:21:21,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 10052 transitions. [2020-04-18 07:21:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:21,637 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:21,637 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:21,637 INFO L427 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:21,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:21,637 INFO L82 PathProgramCache]: Analyzing trace with hash 708167468, now seen corresponding path program 42 times [2020-04-18 07:21:21,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:21,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843680697] [2020-04-18 07:21:21,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:22,604 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 07:21:22,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843680697] [2020-04-18 07:21:22,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:22,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:21:22,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348291971] [2020-04-18 07:21:22,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:21:22,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:22,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:21:22,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:21:22,606 INFO L87 Difference]: Start difference. First operand 3843 states and 10052 transitions. Second operand 18 states. [2020-04-18 07:21:23,354 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:21:23,589 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-04-18 07:21:23,804 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 07:21:24,245 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-04-18 07:21:24,631 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:21:24,814 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-04-18 07:21:24,970 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:21:25,151 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:21:25,326 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:21:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:25,338 INFO L93 Difference]: Finished difference Result 4984 states and 12627 transitions. [2020-04-18 07:21:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:21:25,339 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-04-18 07:21:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:25,344 INFO L225 Difference]: With dead ends: 4984 [2020-04-18 07:21:25,344 INFO L226 Difference]: Without dead ends: 4984 [2020-04-18 07:21:25,344 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:21:25,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4984 states. [2020-04-18 07:21:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4984 to 3381. [2020-04-18 07:21:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3381 states. [2020-04-18 07:21:25,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 8809 transitions. [2020-04-18 07:21:25,391 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 8809 transitions. Word has length 97 [2020-04-18 07:21:25,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:25,391 INFO L479 AbstractCegarLoop]: Abstraction has 3381 states and 8809 transitions. [2020-04-18 07:21:25,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:21:25,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 8809 transitions. [2020-04-18 07:21:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:25,394 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:25,394 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:25,394 INFO L427 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:25,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:25,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1871688780, now seen corresponding path program 8 times [2020-04-18 07:21:25,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:25,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451092365] [2020-04-18 07:21:25,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:26,022 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 07:21:26,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451092365] [2020-04-18 07:21:26,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:26,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:21:26,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617650607] [2020-04-18 07:21:26,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:21:26,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:26,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:21:26,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:21:26,024 INFO L87 Difference]: Start difference. First operand 3381 states and 8809 transitions. Second operand 17 states. [2020-04-18 07:21:28,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:28,584 INFO L93 Difference]: Finished difference Result 5024 states and 12816 transitions. [2020-04-18 07:21:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:21:28,585 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-04-18 07:21:28,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:28,590 INFO L225 Difference]: With dead ends: 5024 [2020-04-18 07:21:28,591 INFO L226 Difference]: Without dead ends: 4960 [2020-04-18 07:21:28,591 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=358, Invalid=764, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 07:21:28,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4960 states. [2020-04-18 07:21:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4960 to 3269. [2020-04-18 07:21:28,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3269 states. [2020-04-18 07:21:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 8566 transitions. [2020-04-18 07:21:28,631 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 8566 transitions. Word has length 97 [2020-04-18 07:21:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:28,631 INFO L479 AbstractCegarLoop]: Abstraction has 3269 states and 8566 transitions. [2020-04-18 07:21:28,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:21:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 8566 transitions. [2020-04-18 07:21:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 07:21:28,634 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:28,634 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:28,634 INFO L427 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:21:28,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:28,634 INFO L82 PathProgramCache]: Analyzing trace with hash -401131062, now seen corresponding path program 43 times [2020-04-18 07:21:28,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:28,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338851669] [2020-04-18 07:21:28,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2020-04-18 07:21:29,240 WARN L209 SmtUtils]: Removed 3 from assertion stack [2020-04-18 07:21:29,241 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 07:21:29,246 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 07:21:29,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:21:29 BasicIcfg [2020-04-18 07:21:29,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:21:29,251 INFO L168 Benchmark]: Toolchain (without parser) took 244011.87 ms. Allocated memory was 145.8 MB in the beginning and 644.3 MB in the end (delta: 498.6 MB). Free memory was 100.7 MB in the beginning and 321.7 MB in the end (delta: -220.9 MB). Peak memory consumption was 277.7 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,252 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1498.42 ms. Allocated memory was 145.8 MB in the beginning and 237.5 MB in the end (delta: 91.8 MB). Free memory was 98.8 MB in the beginning and 171.4 MB in the end (delta: -72.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.82 ms. Allocated memory is still 237.5 MB. Free memory was 171.4 MB in the beginning and 168.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,252 INFO L168 Benchmark]: Boogie Preprocessor took 66.61 ms. Allocated memory is still 237.5 MB. Free memory was 168.5 MB in the beginning and 165.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,253 INFO L168 Benchmark]: RCFGBuilder took 879.89 ms. Allocated memory is still 237.5 MB. Free memory was 165.4 MB in the beginning and 118.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,253 INFO L168 Benchmark]: TraceAbstraction took 241444.78 ms. Allocated memory was 237.5 MB in the beginning and 644.3 MB in the end (delta: 406.8 MB). Free memory was 116.8 MB in the beginning and 321.7 MB in the end (delta: -204.9 MB). Peak memory consumption was 201.9 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:29,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1498.42 ms. Allocated memory was 145.8 MB in the beginning and 237.5 MB in the end (delta: 91.8 MB). Free memory was 98.8 MB in the beginning and 171.4 MB in the end (delta: -72.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 90.82 ms. Allocated memory is still 237.5 MB. Free memory was 171.4 MB in the beginning and 168.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.61 ms. Allocated memory is still 237.5 MB. Free memory was 168.5 MB in the beginning and 165.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 879.89 ms. Allocated memory is still 237.5 MB. Free memory was 165.4 MB in the beginning and 118.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241444.78 ms. Allocated memory was 237.5 MB in the beginning and 644.3 MB in the end (delta: 406.8 MB). Free memory was 116.8 MB in the beginning and 321.7 MB in the end (delta: -204.9 MB). Peak memory consumption was 201.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 98 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 39ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 98 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 39ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 98 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 39ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 98 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 39ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 98 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 39ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 98 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 39ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 127 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 241.2s, OverallIterations: 56, TraceHistogramMax: 1, AutomataDifference: 176.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 10847 SDtfs, 35369 SDslu, 69398 SDs, 0 SdLazy, 36323 SolverSat, 3361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2035 GetRequests, 168 SyntacticMatches, 81 SemanticMatches, 1786 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9284 ImplicationChecksByTransitivity, 150.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5126occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 55 MinimizatonAttempts, 108790 StatesRemovedByMinimization, 54 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 54.9s InterpolantComputationTime, 5106 NumberOfCodeBlocks, 5106 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 5051 ConstructedInterpolants, 0 QuantifiedInterpolants, 6758441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 55 InterpolantComputations, 55 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown