/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-keepdead.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:45:33,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:45:33,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:45:33,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:45:33,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:45:33,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:45:33,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:45:33,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:45:33,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:45:33,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:45:33,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:45:33,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:45:33,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:45:33,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:45:33,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:45:33,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:45:33,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:45:33,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:45:33,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:45:33,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:45:33,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:45:33,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:45:33,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:45:33,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:45:33,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:45:33,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:45:33,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:45:33,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:45:33,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:45:33,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:45:33,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:45:33,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:45:33,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:45:33,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:45:33,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:45:33,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:45:33,708 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-keepdead.epf [2021-01-20 21:45:33,755 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:45:33,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:45:33,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:45:33,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:45:33,760 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:45:33,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:45:33,761 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:45:33,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:45:33,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:45:33,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:45:33,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:45:33,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:45:33,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:45:33,763 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:45:33,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:45:33,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:45:33,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:45:33,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:45:33,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:45:33,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:45:33,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:45:33,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:45:33,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:45:33,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:45:33,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:45:33,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:45:33,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:45:33,766 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:45:33,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:45:33,766 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:45:33,767 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:45:33,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:45:34,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:45:34,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:45:34,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:45:34,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:45:34,171 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:45:34,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-01-20 21:45:34,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec026723d/b79872c13c274b7dae1be7defc03ab3d/FLAG84d8c3779 [2021-01-20 21:45:34,945 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:45:34,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-01-20 21:45:34,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec026723d/b79872c13c274b7dae1be7defc03ab3d/FLAG84d8c3779 [2021-01-20 21:45:35,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec026723d/b79872c13c274b7dae1be7defc03ab3d [2021-01-20 21:45:35,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:45:35,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:45:35,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:45:35,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:45:35,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:45:35,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:45:35" (1/1) ... [2021-01-20 21:45:35,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bc9740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:35, skipping insertion in model container [2021-01-20 21:45:35,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:45:35" (1/1) ... [2021-01-20 21:45:35,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:45:35,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:45:35,460 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 21:45:36,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:45:36,038 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:45:36,060 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 21:45:36,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:45:36,564 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:45:36,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36 WrapperNode [2021-01-20 21:45:36,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:45:36,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:45:36,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:45:36,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:45:36,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:45:36,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:45:36,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:45:36,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:45:36,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (1/1) ... [2021-01-20 21:45:36,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:45:36,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:45:36,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:45:36,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:45:36,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (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 [2021-01-20 21:45:36,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:45:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:45:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:45:36,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 21:45:36,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-20 21:45:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:45:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:45:36,857 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-01-20 21:45:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-01-20 21:45:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:45:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:45:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:45:36,860 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:45:37,690 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:45:37,690 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2021-01-20 21:45:37,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:45:37 BoogieIcfgContainer [2021-01-20 21:45:37,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:45:37,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:45:37,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:45:37,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:45:37,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:45:35" (1/3) ... [2021-01-20 21:45:37,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f3d38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:45:37, skipping insertion in model container [2021-01-20 21:45:37,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:36" (2/3) ... [2021-01-20 21:45:37,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f3d38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:45:37, skipping insertion in model container [2021-01-20 21:45:37,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:45:37" (3/3) ... [2021-01-20 21:45:37,705 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-01-20 21:45:37,722 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:45:37,722 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:45:37,727 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-01-20 21:45:37,728 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:45:37,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,779 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,779 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,784 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,784 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,787 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,787 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,788 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,788 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,788 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,788 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,789 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,789 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,793 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,794 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,797 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,799 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,799 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,799 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,799 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,800 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,800 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,805 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,806 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,806 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,806 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,806 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,806 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,807 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,807 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,807 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,807 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,807 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,808 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,808 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,811 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,811 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,811 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,814 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,814 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,814 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,814 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,814 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,815 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,815 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,815 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,815 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,815 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,816 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,821 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,822 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,833 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,834 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,834 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,837 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,838 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,839 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,859 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,859 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,860 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,860 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,860 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,860 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,860 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,861 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,861 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,861 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,861 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,861 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:37,922 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-20 21:45:37,935 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-20 21:45:37,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:45:37,958 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:45:37,958 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:45:37,959 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:45:37,959 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:45:37,959 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:45:37,959 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:45:37,959 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:45:37,975 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 147 places, 153 transitions, 328 flow [2021-01-20 21:45:38,270 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5697 states, 5688 states have (on average 2.8306962025316458) internal successors, (16101), 5696 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 5697 states, 5688 states have (on average 2.8306962025316458) internal successors, (16101), 5696 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:45:38,309 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:38,310 INFO L504 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] [2021-01-20 21:45:38,311 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:38,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1850903132, now seen corresponding path program 1 times [2021-01-20 21:45:38,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:38,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70183896] [2021-01-20 21:45:38,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:39,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70183896] [2021-01-20 21:45:39,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:39,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:45:39,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261483664] [2021-01-20 21:45:39,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:45:39,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:39,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:45:39,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:45:39,076 INFO L87 Difference]: Start difference. First operand has 5697 states, 5688 states have (on average 2.8306962025316458) internal successors, (16101), 5696 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:39,660 INFO L93 Difference]: Finished difference Result 7276 states and 19867 transitions. [2021-01-20 21:45:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-20 21:45:39,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-20 21:45:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:39,664 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:45:39,665 INFO L78 Accepts]: Start accepts. Automaton has 7276 states and 19867 transitions. Word has length 50 [2021-01-20 21:45:39,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:39,666 INFO L481 AbstractCegarLoop]: Abstraction has 7276 states and 19867 transitions. [2021-01-20 21:45:39,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7276 states and 19867 transitions. [2021-01-20 21:45:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 21:45:39,676 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:39,676 INFO L504 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] [2021-01-20 21:45:39,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:45:39,677 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:39,678 INFO L82 PathProgramCache]: Analyzing trace with hash 206446332, now seen corresponding path program 1 times [2021-01-20 21:45:39,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:39,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523615114] [2021-01-20 21:45:39,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:39,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523615114] [2021-01-20 21:45:39,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:39,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:45:39,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526724326] [2021-01-20 21:45:39,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:45:39,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:39,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:45:39,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:45:39,830 INFO L87 Difference]: Start difference. First operand 7276 states and 19867 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:40,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:40,328 INFO L93 Difference]: Finished difference Result 9314 states and 25332 transitions. [2021-01-20 21:45:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:45:40,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-01-20 21:45:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:40,330 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:45:40,330 INFO L78 Accepts]: Start accepts. Automaton has 9314 states and 25332 transitions. Word has length 56 [2021-01-20 21:45:40,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:40,331 INFO L481 AbstractCegarLoop]: Abstraction has 9314 states and 25332 transitions. [2021-01-20 21:45:40,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9314 states and 25332 transitions. [2021-01-20 21:45:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-20 21:45:40,340 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:40,340 INFO L504 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] [2021-01-20 21:45:40,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:45:40,340 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:40,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:40,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1496340841, now seen corresponding path program 1 times [2021-01-20 21:45:40,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:40,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046854963] [2021-01-20 21:45:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:40,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046854963] [2021-01-20 21:45:40,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:40,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 21:45:40,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597038120] [2021-01-20 21:45:40,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 21:45:40,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:40,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 21:45:40,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 21:45:40,451 INFO L87 Difference]: Start difference. First operand 9314 states and 25332 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:40,517 INFO L93 Difference]: Finished difference Result 1833 states and 4703 transitions. [2021-01-20 21:45:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:45:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-01-20 21:45:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:40,519 INFO L769 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 [2021-01-20 21:45:40,519 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 4703 transitions. Word has length 62 [2021-01-20 21:45:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:40,520 INFO L481 AbstractCegarLoop]: Abstraction has 1833 states and 4703 transitions. [2021-01-20 21:45:40,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 4703 transitions. [2021-01-20 21:45:40,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:40,525 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:40,525 INFO L504 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] [2021-01-20 21:45:40,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:45:40,526 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:40,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:40,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1591513289, now seen corresponding path program 1 times [2021-01-20 21:45:40,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:40,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38132502] [2021-01-20 21:45:40,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:41,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:41,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38132502] [2021-01-20 21:45:41,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:41,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:45:41,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579065595] [2021-01-20 21:45:41,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:45:41,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:41,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:45:41,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:45:41,553 INFO L87 Difference]: Start difference. First operand 1833 states and 4703 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:42,393 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-01-20 21:45:42,602 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 21:45:42,842 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 21:45:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:43,751 INFO L93 Difference]: Finished difference Result 2593 states and 6258 transitions. [2021-01-20 21:45:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:45:43,753 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:45:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:43,758 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:45:43,758 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 6258 transitions. Word has length 90 [2021-01-20 21:45:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:43,758 INFO L481 AbstractCegarLoop]: Abstraction has 2593 states and 6258 transitions. [2021-01-20 21:45:43,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 6258 transitions. [2021-01-20 21:45:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:43,767 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:43,767 INFO L504 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] [2021-01-20 21:45:43,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:45:43,768 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:43,769 INFO L82 PathProgramCache]: Analyzing trace with hash -528545843, now seen corresponding path program 2 times [2021-01-20 21:45:43,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:43,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541632959] [2021-01-20 21:45:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:44,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541632959] [2021-01-20 21:45:44,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:44,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:45:44,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894116553] [2021-01-20 21:45:44,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:45:44,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:44,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:45:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:45:44,514 INFO L87 Difference]: Start difference. First operand 2593 states and 6258 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:45,829 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 21:45:46,177 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-01-20 21:45:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:46,705 INFO L93 Difference]: Finished difference Result 3123 states and 7357 transitions. [2021-01-20 21:45:46,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:45:46,706 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:45:46,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:46,708 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:45:46,708 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 7357 transitions. Word has length 90 [2021-01-20 21:45:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:46,709 INFO L481 AbstractCegarLoop]: Abstraction has 3123 states and 7357 transitions. [2021-01-20 21:45:46,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 7357 transitions. [2021-01-20 21:45:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:46,716 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:46,717 INFO L504 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] [2021-01-20 21:45:46,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:45:46,717 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:46,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:46,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1468599035, now seen corresponding path program 3 times [2021-01-20 21:45:46,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:46,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042101442] [2021-01-20 21:45:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:47,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042101442] [2021-01-20 21:45:47,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:47,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:45:47,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069429407] [2021-01-20 21:45:47,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:45:47,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:47,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:45:47,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:45:47,391 INFO L87 Difference]: Start difference. First operand 3123 states and 7357 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:49,680 INFO L93 Difference]: Finished difference Result 3493 states and 8041 transitions. [2021-01-20 21:45:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:45:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:45:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:49,684 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:45:49,685 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 8041 transitions. Word has length 90 [2021-01-20 21:45:49,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:49,685 INFO L481 AbstractCegarLoop]: Abstraction has 3493 states and 8041 transitions. [2021-01-20 21:45:49,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:49,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 8041 transitions. [2021-01-20 21:45:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:49,694 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:49,695 INFO L504 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] [2021-01-20 21:45:49,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:45:49,695 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:49,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1110752397, now seen corresponding path program 4 times [2021-01-20 21:45:49,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:49,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490578687] [2021-01-20 21:45:49,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:50,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490578687] [2021-01-20 21:45:50,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:50,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:45:50,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174004952] [2021-01-20 21:45:50,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:45:50,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:50,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:45:50,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:45:50,340 INFO L87 Difference]: Start difference. First operand 3493 states and 8041 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:51,443 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 21:45:51,650 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 21:45:52,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:52,702 INFO L93 Difference]: Finished difference Result 3890 states and 8788 transitions. [2021-01-20 21:45:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:45:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:45:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:52,704 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:45:52,705 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 8788 transitions. Word has length 90 [2021-01-20 21:45:52,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:52,705 INFO L481 AbstractCegarLoop]: Abstraction has 3890 states and 8788 transitions. [2021-01-20 21:45:52,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:52,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 8788 transitions. [2021-01-20 21:45:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:52,715 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:52,715 INFO L504 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] [2021-01-20 21:45:52,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:45:52,716 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:52,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:52,716 INFO L82 PathProgramCache]: Analyzing trace with hash -682618727, now seen corresponding path program 5 times [2021-01-20 21:45:52,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:52,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774956086] [2021-01-20 21:45:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:53,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774956086] [2021-01-20 21:45:53,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:53,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:45:53,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655966696] [2021-01-20 21:45:53,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:45:53,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:53,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:45:53,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:45:53,322 INFO L87 Difference]: Start difference. First operand 3890 states and 8788 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:54,349 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 21:45:54,550 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 21:45:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:55,556 INFO L93 Difference]: Finished difference Result 3979 states and 8895 transitions. [2021-01-20 21:45:55,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:45:55,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:45:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:55,559 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:45:55,559 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 8895 transitions. Word has length 90 [2021-01-20 21:45:55,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:55,560 INFO L481 AbstractCegarLoop]: Abstraction has 3979 states and 8895 transitions. [2021-01-20 21:45:55,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 8895 transitions. [2021-01-20 21:45:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:55,569 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:55,569 INFO L504 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] [2021-01-20 21:45:55,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:45:55,570 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:55,570 INFO L82 PathProgramCache]: Analyzing trace with hash -963804661, now seen corresponding path program 6 times [2021-01-20 21:45:55,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:55,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822465861] [2021-01-20 21:45:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:56,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822465861] [2021-01-20 21:45:56,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:56,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:45:56,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731390753] [2021-01-20 21:45:56,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:45:56,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:56,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:45:56,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:45:56,113 INFO L87 Difference]: Start difference. First operand 3979 states and 8895 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:57,069 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 21:45:57,277 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 21:45:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:58,108 INFO L93 Difference]: Finished difference Result 4033 states and 8967 transitions. [2021-01-20 21:45:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:45:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:45:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:58,111 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:45:58,111 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 8967 transitions. Word has length 90 [2021-01-20 21:45:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:58,112 INFO L481 AbstractCegarLoop]: Abstraction has 4033 states and 8967 transitions. [2021-01-20 21:45:58,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:45:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 8967 transitions. [2021-01-20 21:45:58,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:45:58,118 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:58,118 INFO L504 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] [2021-01-20 21:45:58,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:45:58,119 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:58,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:58,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1193349277, now seen corresponding path program 7 times [2021-01-20 21:45:58,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:58,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074695022] [2021-01-20 21:45:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:59,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074695022] [2021-01-20 21:45:59,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:59,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:45:59,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13399570] [2021-01-20 21:45:59,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:45:59,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:59,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:45:59,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:45:59,092 INFO L87 Difference]: Start difference. First operand 4033 states and 8967 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:00,018 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:00,371 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:00,696 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:01,508 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:46:01,796 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:46:02,142 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:46:02,492 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:02,869 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:03,355 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 21:46:03,591 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:46:03,880 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 21:46:04,148 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 21:46:04,384 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:46:04,635 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 21:46:04,890 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 21:46:05,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:05,002 INFO L93 Difference]: Finished difference Result 6663 states and 14537 transitions. [2021-01-20 21:46:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:46:05,003 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:05,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:05,005 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=520, Invalid=1550, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:46:05,005 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 14537 transitions. Word has length 90 [2021-01-20 21:46:05,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:05,006 INFO L481 AbstractCegarLoop]: Abstraction has 6663 states and 14537 transitions. [2021-01-20 21:46:05,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 14537 transitions. [2021-01-20 21:46:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:05,016 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:05,016 INFO L504 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] [2021-01-20 21:46:05,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:46:05,017 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:05,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:05,018 INFO L82 PathProgramCache]: Analyzing trace with hash -388303861, now seen corresponding path program 8 times [2021-01-20 21:46:05,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:05,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906809682] [2021-01-20 21:46:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:05,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906809682] [2021-01-20 21:46:05,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:05,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:05,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542047567] [2021-01-20 21:46:05,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:05,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:05,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:05,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:05,963 INFO L87 Difference]: Start difference. First operand 6663 states and 14537 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:06,877 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:07,220 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:07,478 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:07,774 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:46:08,234 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:46:08,625 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:46:09,016 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:46:09,764 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:46:10,370 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:46:10,727 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:46:11,086 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:46:11,452 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:46:11,807 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:12,186 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:12,262 INFO L93 Difference]: Finished difference Result 6769 states and 14704 transitions. [2021-01-20 21:46:12,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 21:46:12,267 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:12,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:12,269 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=557, Invalid=1423, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 21:46:12,269 INFO L78 Accepts]: Start accepts. Automaton has 6769 states and 14704 transitions. Word has length 90 [2021-01-20 21:46:12,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:12,269 INFO L481 AbstractCegarLoop]: Abstraction has 6769 states and 14704 transitions. [2021-01-20 21:46:12,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:12,270 INFO L276 IsEmpty]: Start isEmpty. Operand 6769 states and 14704 transitions. [2021-01-20 21:46:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:12,280 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:12,280 INFO L504 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] [2021-01-20 21:46:12,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 21:46:12,280 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:12,281 INFO L82 PathProgramCache]: Analyzing trace with hash 23768665, now seen corresponding path program 9 times [2021-01-20 21:46:12,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:12,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428945568] [2021-01-20 21:46:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:13,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428945568] [2021-01-20 21:46:13,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:13,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:13,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416613050] [2021-01-20 21:46:13,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:13,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:13,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:13,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:13,357 INFO L87 Difference]: Start difference. First operand 6769 states and 14704 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:14,378 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:14,731 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:14,983 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:15,279 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:46:15,737 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:46:16,132 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:46:16,533 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:46:17,332 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:17,684 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:18,311 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:46:18,681 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:46:19,068 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:46:19,440 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:46:19,820 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:20,207 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:20,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:20,300 INFO L93 Difference]: Finished difference Result 6765 states and 14700 transitions. [2021-01-20 21:46:20,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:46:20,301 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:20,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:20,303 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=565, Invalid=1505, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:46:20,303 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 14700 transitions. Word has length 90 [2021-01-20 21:46:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:20,304 INFO L481 AbstractCegarLoop]: Abstraction has 6765 states and 14700 transitions. [2021-01-20 21:46:20,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 14700 transitions. [2021-01-20 21:46:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:20,312 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:20,312 INFO L504 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] [2021-01-20 21:46:20,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 21:46:20,313 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:20,313 INFO L82 PathProgramCache]: Analyzing trace with hash -174849311, now seen corresponding path program 10 times [2021-01-20 21:46:20,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:20,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730748414] [2021-01-20 21:46:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:21,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730748414] [2021-01-20 21:46:21,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:21,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:21,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566991107] [2021-01-20 21:46:21,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:21,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:21,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:21,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:21,354 INFO L87 Difference]: Start difference. First operand 6765 states and 14700 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:22,091 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:46:22,325 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:22,704 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:22,977 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:23,299 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:46:23,786 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:46:24,620 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:46:24,990 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:25,401 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:25,986 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 21:46:26,335 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 21:46:26,666 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 21:46:27,016 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 21:46:27,321 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:46:27,665 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 21:46:28,030 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 21:46:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:28,165 INFO L93 Difference]: Finished difference Result 6761 states and 14696 transitions. [2021-01-20 21:46:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:46:28,166 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:28,167 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=550, Invalid=1520, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:46:28,167 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 14696 transitions. Word has length 90 [2021-01-20 21:46:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:28,168 INFO L481 AbstractCegarLoop]: Abstraction has 6761 states and 14696 transitions. [2021-01-20 21:46:28,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 14696 transitions. [2021-01-20 21:46:28,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:28,177 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:28,177 INFO L504 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] [2021-01-20 21:46:28,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-20 21:46:28,177 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:28,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1697555461, now seen corresponding path program 11 times [2021-01-20 21:46:28,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:28,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144368328] [2021-01-20 21:46:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:29,137 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:46:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:29,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144368328] [2021-01-20 21:46:29,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:29,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:29,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833802634] [2021-01-20 21:46:29,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:29,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:29,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:29,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:29,377 INFO L87 Difference]: Start difference. First operand 6761 states and 14696 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:30,144 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:46:30,374 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:30,747 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:31,013 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:31,323 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:46:32,097 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:46:32,431 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:46:32,793 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:33,218 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:33,739 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 21:46:34,037 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 21:46:34,332 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 21:46:34,645 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 21:46:34,903 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:46:35,203 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 21:46:35,513 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 21:46:35,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:35,653 INFO L93 Difference]: Finished difference Result 6757 states and 14692 transitions. [2021-01-20 21:46:35,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:46:35,654 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:35,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:35,656 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=535, Invalid=1535, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:46:35,657 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 14692 transitions. Word has length 90 [2021-01-20 21:46:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:35,657 INFO L481 AbstractCegarLoop]: Abstraction has 6757 states and 14692 transitions. [2021-01-20 21:46:35,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 14692 transitions. [2021-01-20 21:46:35,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:35,667 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:35,667 INFO L504 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] [2021-01-20 21:46:35,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-20 21:46:35,668 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:35,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:35,668 INFO L82 PathProgramCache]: Analyzing trace with hash 973479241, now seen corresponding path program 12 times [2021-01-20 21:46:35,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:35,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161740520] [2021-01-20 21:46:35,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:36,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161740520] [2021-01-20 21:46:36,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:36,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:36,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162929993] [2021-01-20 21:46:36,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:36,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:36,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:36,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:36,594 INFO L87 Difference]: Start difference. First operand 6757 states and 14692 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:37,587 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:37,967 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:38,668 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:46:38,926 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:46:39,220 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:46:39,592 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:46:39,952 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:40,329 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:40,774 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 21:46:40,997 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:46:41,223 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 21:46:41,463 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 21:46:41,657 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:46:41,901 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 21:46:42,141 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 21:46:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:42,265 INFO L93 Difference]: Finished difference Result 6807 states and 14742 transitions. [2021-01-20 21:46:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:46:42,266 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:42,267 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=505, Invalid=1565, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:46:42,268 INFO L78 Accepts]: Start accepts. Automaton has 6807 states and 14742 transitions. Word has length 90 [2021-01-20 21:46:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:42,268 INFO L481 AbstractCegarLoop]: Abstraction has 6807 states and 14742 transitions. [2021-01-20 21:46:42,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6807 states and 14742 transitions. [2021-01-20 21:46:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:42,277 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:42,278 INFO L504 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] [2021-01-20 21:46:42,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-20 21:46:42,278 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:42,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:42,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1930787701, now seen corresponding path program 13 times [2021-01-20 21:46:42,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:42,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989815387] [2021-01-20 21:46:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:43,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989815387] [2021-01-20 21:46:43,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:43,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:43,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443440874] [2021-01-20 21:46:43,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:43,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:43,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:43,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:43,361 INFO L87 Difference]: Start difference. First operand 6807 states and 14742 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:44,107 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:46:44,449 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:44,682 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:44,960 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:45,712 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:46:45,990 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:46:46,342 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:46:46,699 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:47,155 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:47,713 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 21:46:47,992 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:46:48,277 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 21:46:48,577 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 21:46:48,843 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:46:49,118 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 21:46:49,411 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 21:46:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:49,559 INFO L93 Difference]: Finished difference Result 11987 states and 26053 transitions. [2021-01-20 21:46:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:46:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:49,562 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=519, Invalid=1551, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:46:49,562 INFO L78 Accepts]: Start accepts. Automaton has 11987 states and 26053 transitions. Word has length 90 [2021-01-20 21:46:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:49,563 INFO L481 AbstractCegarLoop]: Abstraction has 11987 states and 26053 transitions. [2021-01-20 21:46:49,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11987 states and 26053 transitions. [2021-01-20 21:46:49,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:49,574 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:49,575 INFO L504 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] [2021-01-20 21:46:49,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-20 21:46:49,575 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:49,575 INFO L82 PathProgramCache]: Analyzing trace with hash 349134563, now seen corresponding path program 14 times [2021-01-20 21:46:49,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:49,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880883343] [2021-01-20 21:46:49,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:50,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880883343] [2021-01-20 21:46:50,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:50,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:50,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264867548] [2021-01-20 21:46:50,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:50,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:50,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:50,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:50,580 INFO L87 Difference]: Start difference. First operand 11987 states and 26053 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:51,326 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:46:51,668 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:51,908 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:46:52,188 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:46:52,507 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:46:53,063 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:46:53,462 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:46:53,877 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:46:54,662 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:46:55,293 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:46:55,687 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:46:56,103 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:46:56,501 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:46:56,893 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:46:57,285 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:46:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:57,363 INFO L93 Difference]: Finished difference Result 12093 states and 26220 transitions. [2021-01-20 21:46:57,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 21:46:57,365 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:46:57,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:57,367 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=556, Invalid=1424, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 21:46:57,367 INFO L78 Accepts]: Start accepts. Automaton has 12093 states and 26220 transitions. Word has length 90 [2021-01-20 21:46:57,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:57,367 INFO L481 AbstractCegarLoop]: Abstraction has 12093 states and 26220 transitions. [2021-01-20 21:46:57,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:57,367 INFO L276 IsEmpty]: Start isEmpty. Operand 12093 states and 26220 transitions. [2021-01-20 21:46:57,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:46:57,377 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:57,377 INFO L504 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] [2021-01-20 21:46:57,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-20 21:46:57,378 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:46:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:57,378 INFO L82 PathProgramCache]: Analyzing trace with hash 761207089, now seen corresponding path program 15 times [2021-01-20 21:46:57,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:57,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229150184] [2021-01-20 21:46:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:58,155 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:46:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:58,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229150184] [2021-01-20 21:46:58,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:58,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:46:58,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20250703] [2021-01-20 21:46:58,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:46:58,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:58,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:46:58,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:46:58,484 INFO L87 Difference]: Start difference. First operand 12093 states and 26220 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:59,201 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:46:59,531 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:46:59,767 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:00,042 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:00,351 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:47:00,822 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:47:01,225 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:47:01,629 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:47:02,354 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:02,717 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:03,356 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:47:03,819 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:47:04,213 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:47:04,595 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:47:04,972 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:05,355 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:05,420 INFO L93 Difference]: Finished difference Result 12089 states and 26216 transitions. [2021-01-20 21:47:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:05,422 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:05,424 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=564, Invalid=1506, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:47:05,424 INFO L78 Accepts]: Start accepts. Automaton has 12089 states and 26216 transitions. Word has length 90 [2021-01-20 21:47:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:05,424 INFO L481 AbstractCegarLoop]: Abstraction has 12089 states and 26216 transitions. [2021-01-20 21:47:05,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:05,424 INFO L276 IsEmpty]: Start isEmpty. Operand 12089 states and 26216 transitions. [2021-01-20 21:47:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:05,432 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:05,432 INFO L504 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] [2021-01-20 21:47:05,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-20 21:47:05,433 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:05,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:05,433 INFO L82 PathProgramCache]: Analyzing trace with hash 562589113, now seen corresponding path program 16 times [2021-01-20 21:47:05,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:05,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979220932] [2021-01-20 21:47:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:06,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979220932] [2021-01-20 21:47:06,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:06,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:06,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62854758] [2021-01-20 21:47:06,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:06,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:06,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:06,425 INFO L87 Difference]: Start difference. First operand 12089 states and 26216 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:07,137 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:07,476 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:07,715 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:07,994 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:08,310 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:47:08,782 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:47:09,622 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:10,012 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:10,437 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:11,068 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 21:47:11,427 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 21:47:11,780 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 21:47:12,139 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 21:47:12,443 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:12,794 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 21:47:13,148 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 21:47:13,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:13,273 INFO L93 Difference]: Finished difference Result 12085 states and 26212 transitions. [2021-01-20 21:47:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:13,274 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:13,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:13,276 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=549, Invalid=1521, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:47:13,276 INFO L78 Accepts]: Start accepts. Automaton has 12085 states and 26212 transitions. Word has length 90 [2021-01-20 21:47:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:13,277 INFO L481 AbstractCegarLoop]: Abstraction has 12085 states and 26212 transitions. [2021-01-20 21:47:13,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 12085 states and 26212 transitions. [2021-01-20 21:47:13,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:13,289 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:13,289 INFO L504 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] [2021-01-20 21:47:13,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-20 21:47:13,290 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:13,290 INFO L82 PathProgramCache]: Analyzing trace with hash -960117037, now seen corresponding path program 17 times [2021-01-20 21:47:13,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:13,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826291536] [2021-01-20 21:47:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:14,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826291536] [2021-01-20 21:47:14,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:14,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:14,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195363606] [2021-01-20 21:47:14,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:14,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:14,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:14,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:14,317 INFO L87 Difference]: Start difference. First operand 12085 states and 26212 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:15,055 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:15,397 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:15,635 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:15,920 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:16,338 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:47:17,184 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:47:17,528 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:17,891 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:18,275 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:18,825 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 21:47:19,127 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 21:47:19,428 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 21:47:19,748 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 21:47:20,015 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:47:20,324 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 21:47:20,641 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 21:47:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:20,772 INFO L93 Difference]: Finished difference Result 12081 states and 26208 transitions. [2021-01-20 21:47:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:20,773 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:20,775 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:47:20,775 INFO L78 Accepts]: Start accepts. Automaton has 12081 states and 26208 transitions. Word has length 90 [2021-01-20 21:47:20,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:20,776 INFO L481 AbstractCegarLoop]: Abstraction has 12081 states and 26208 transitions. [2021-01-20 21:47:20,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 12081 states and 26208 transitions. [2021-01-20 21:47:20,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:20,786 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:20,787 INFO L504 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] [2021-01-20 21:47:20,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-20 21:47:20,787 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:20,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:20,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1710917665, now seen corresponding path program 18 times [2021-01-20 21:47:20,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:20,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164002251] [2021-01-20 21:47:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:21,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164002251] [2021-01-20 21:47:21,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:21,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:21,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014785261] [2021-01-20 21:47:21,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:21,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:21,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:21,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:21,817 INFO L87 Difference]: Start difference. First operand 12081 states and 26208 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:22,611 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:23,070 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:23,313 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:24,085 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:47:24,356 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:47:24,658 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:47:25,041 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:25,404 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:25,793 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:26,321 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 21:47:26,564 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:47:26,796 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 21:47:27,043 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 21:47:27,240 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:47:27,479 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 21:47:27,746 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 21:47:27,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:27,925 INFO L93 Difference]: Finished difference Result 13800 states and 29299 transitions. [2021-01-20 21:47:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:27,927 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:27,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:27,928 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=504, Invalid=1566, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:47:27,928 INFO L78 Accepts]: Start accepts. Automaton has 13800 states and 29299 transitions. Word has length 90 [2021-01-20 21:47:27,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:27,929 INFO L481 AbstractCegarLoop]: Abstraction has 13800 states and 29299 transitions. [2021-01-20 21:47:27,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:27,929 INFO L276 IsEmpty]: Start isEmpty. Operand 13800 states and 29299 transitions. [2021-01-20 21:47:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:27,944 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:27,944 INFO L504 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] [2021-01-20 21:47:27,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-20 21:47:27,944 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:27,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1296575555, now seen corresponding path program 19 times [2021-01-20 21:47:27,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:27,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423853707] [2021-01-20 21:47:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:28,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423853707] [2021-01-20 21:47:28,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:28,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:28,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149394969] [2021-01-20 21:47:28,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:28,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:28,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:28,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:28,989 INFO L87 Difference]: Start difference. First operand 13800 states and 29299 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:29,894 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:30,283 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:30,565 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:30,856 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:31,686 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:47:31,973 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:47:32,341 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:32,713 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:33,106 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:33,667 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 21:47:33,932 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:47:34,223 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 21:47:34,532 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 21:47:34,798 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:47:35,087 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 21:47:35,383 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 21:47:35,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:35,523 INFO L93 Difference]: Finished difference Result 13796 states and 29295 transitions. [2021-01-20 21:47:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:35,524 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:35,526 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=519, Invalid=1551, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:47:35,526 INFO L78 Accepts]: Start accepts. Automaton has 13796 states and 29295 transitions. Word has length 90 [2021-01-20 21:47:35,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:35,526 INFO L481 AbstractCegarLoop]: Abstraction has 13796 states and 29295 transitions. [2021-01-20 21:47:35,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 13796 states and 29295 transitions. [2021-01-20 21:47:35,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:35,537 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:35,538 INFO L504 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] [2021-01-20 21:47:35,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-20 21:47:35,538 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:35,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:35,538 INFO L82 PathProgramCache]: Analyzing trace with hash -285077583, now seen corresponding path program 20 times [2021-01-20 21:47:35,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:35,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002869715] [2021-01-20 21:47:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:36,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002869715] [2021-01-20 21:47:36,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:36,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:36,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435182230] [2021-01-20 21:47:36,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:36,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:36,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:36,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:36,528 INFO L87 Difference]: Start difference. First operand 13796 states and 29295 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:37,462 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:37,852 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:38,136 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:38,420 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:38,773 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:47:39,296 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:47:39,726 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:47:40,130 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:47:40,902 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:47:41,491 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:47:41,870 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:47:42,268 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:47:42,654 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:47:43,037 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:43,435 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:43,501 INFO L93 Difference]: Finished difference Result 16137 states and 34332 transitions. [2021-01-20 21:47:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 21:47:43,502 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:43,503 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=556, Invalid=1424, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 21:47:43,503 INFO L78 Accepts]: Start accepts. Automaton has 16137 states and 34332 transitions. Word has length 90 [2021-01-20 21:47:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:43,504 INFO L481 AbstractCegarLoop]: Abstraction has 16137 states and 34332 transitions. [2021-01-20 21:47:43,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16137 states and 34332 transitions. [2021-01-20 21:47:43,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:43,517 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:43,517 INFO L504 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] [2021-01-20 21:47:43,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-20 21:47:43,517 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:43,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:43,518 INFO L82 PathProgramCache]: Analyzing trace with hash 126994943, now seen corresponding path program 21 times [2021-01-20 21:47:43,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:43,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453482346] [2021-01-20 21:47:43,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:44,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453482346] [2021-01-20 21:47:44,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:44,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:44,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072122707] [2021-01-20 21:47:44,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:44,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:44,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:44,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:44,639 INFO L87 Difference]: Start difference. First operand 16137 states and 34332 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:45,560 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:45,897 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:46,159 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:46,423 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:46,744 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:47:47,230 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:47:47,638 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:47:48,054 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:47:48,789 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:49,161 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:49,832 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:47:50,219 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:47:50,634 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:47:51,029 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:47:51,433 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:51,839 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:51,938 INFO L93 Difference]: Finished difference Result 16187 states and 34382 transitions. [2021-01-20 21:47:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:51,939 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:47:51,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:51,940 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=564, Invalid=1506, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:47:51,940 INFO L78 Accepts]: Start accepts. Automaton has 16187 states and 34382 transitions. Word has length 90 [2021-01-20 21:47:51,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:51,941 INFO L481 AbstractCegarLoop]: Abstraction has 16187 states and 34382 transitions. [2021-01-20 21:47:51,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 16187 states and 34382 transitions. [2021-01-20 21:47:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:47:51,952 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:51,953 INFO L504 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] [2021-01-20 21:47:51,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-20 21:47:51,953 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:47:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:51,954 INFO L82 PathProgramCache]: Analyzing trace with hash -71623033, now seen corresponding path program 22 times [2021-01-20 21:47:51,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:51,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824531481] [2021-01-20 21:47:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:53,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824531481] [2021-01-20 21:47:53,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:53,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:47:53,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109523018] [2021-01-20 21:47:53,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:47:53,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:53,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:47:53,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:47:53,162 INFO L87 Difference]: Start difference. First operand 16187 states and 34382 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:53,990 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:47:54,343 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:47:54,609 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:47:54,877 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:47:55,208 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:47:55,703 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:47:56,483 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:56,848 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:47:57,252 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:47:57,868 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 21:47:58,231 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 21:47:58,581 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 21:47:58,954 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 21:47:59,269 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:47:59,629 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 21:48:00,007 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 21:48:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:00,179 INFO L93 Difference]: Finished difference Result 16237 states and 34432 transitions. [2021-01-20 21:48:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:48:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:00,182 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=549, Invalid=1521, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:48:00,182 INFO L78 Accepts]: Start accepts. Automaton has 16237 states and 34432 transitions. Word has length 90 [2021-01-20 21:48:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:00,183 INFO L481 AbstractCegarLoop]: Abstraction has 16237 states and 34432 transitions. [2021-01-20 21:48:00,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:00,183 INFO L276 IsEmpty]: Start isEmpty. Operand 16237 states and 34432 transitions. [2021-01-20 21:48:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:00,196 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:00,196 INFO L504 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] [2021-01-20 21:48:00,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-20 21:48:00,196 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:00,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1594329183, now seen corresponding path program 23 times [2021-01-20 21:48:00,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:00,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103916821] [2021-01-20 21:48:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:01,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103916821] [2021-01-20 21:48:01,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:01,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:48:01,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171542814] [2021-01-20 21:48:01,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:48:01,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:01,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:48:01,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:48:01,374 INFO L87 Difference]: Start difference. First operand 16237 states and 34432 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:02,123 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:48:02,467 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:48:02,730 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:48:02,991 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:48:03,312 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:48:04,135 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:48:04,481 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:48:04,853 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:48:05,245 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:48:05,805 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 21:48:06,114 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 21:48:06,425 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 21:48:06,755 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 21:48:07,032 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:48:07,348 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 21:48:07,671 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 21:48:07,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:07,808 INFO L93 Difference]: Finished difference Result 16287 states and 34482 transitions. [2021-01-20 21:48:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:48:07,809 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:07,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:07,810 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:48:07,811 INFO L78 Accepts]: Start accepts. Automaton has 16287 states and 34482 transitions. Word has length 90 [2021-01-20 21:48:07,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:07,811 INFO L481 AbstractCegarLoop]: Abstraction has 16287 states and 34482 transitions. [2021-01-20 21:48:07,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 16287 states and 34482 transitions. [2021-01-20 21:48:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:07,822 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:07,822 INFO L504 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] [2021-01-20 21:48:07,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-20 21:48:07,823 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:07,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:07,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1625276165, now seen corresponding path program 24 times [2021-01-20 21:48:07,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:07,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381836620] [2021-01-20 21:48:07,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:08,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381836620] [2021-01-20 21:48:08,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:08,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:48:08,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282818395] [2021-01-20 21:48:08,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:48:08,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:08,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:48:08,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:48:08,853 INFO L87 Difference]: Start difference. First operand 16287 states and 34482 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:09,557 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:48:09,738 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:48:10,089 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:48:10,355 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:48:11,016 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:48:11,281 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:48:11,597 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 21:48:11,989 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:48:12,378 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:48:12,787 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:48:13,299 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 21:48:13,551 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:48:13,800 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 21:48:14,065 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 21:48:14,282 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:48:14,536 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 21:48:14,796 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 21:48:14,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:14,929 INFO L93 Difference]: Finished difference Result 16539 states and 34734 transitions. [2021-01-20 21:48:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:48:14,931 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:14,932 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=504, Invalid=1566, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:48:14,932 INFO L78 Accepts]: Start accepts. Automaton has 16539 states and 34734 transitions. Word has length 90 [2021-01-20 21:48:14,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:14,933 INFO L481 AbstractCegarLoop]: Abstraction has 16539 states and 34734 transitions. [2021-01-20 21:48:14,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:14,933 INFO L276 IsEmpty]: Start isEmpty. Operand 16539 states and 34734 transitions. [2021-01-20 21:48:14,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:14,946 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:14,946 INFO L504 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] [2021-01-20 21:48:14,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-20 21:48:14,946 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:14,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:14,947 INFO L82 PathProgramCache]: Analyzing trace with hash -2035864487, now seen corresponding path program 25 times [2021-01-20 21:48:14,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:14,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116786551] [2021-01-20 21:48:14,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:15,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116786551] [2021-01-20 21:48:15,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:15,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:15,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843657997] [2021-01-20 21:48:15,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:15,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:15,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:15,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:15,528 INFO L87 Difference]: Start difference. First operand 16539 states and 34734 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:16,729 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 21:48:16,954 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 21:48:17,877 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-01-20 21:48:18,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:18,216 INFO L93 Difference]: Finished difference Result 20973 states and 42915 transitions. [2021-01-20 21:48:18,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:18,217 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:18,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:18,219 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:18,219 INFO L78 Accepts]: Start accepts. Automaton has 20973 states and 42915 transitions. Word has length 90 [2021-01-20 21:48:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:18,219 INFO L481 AbstractCegarLoop]: Abstraction has 20973 states and 42915 transitions. [2021-01-20 21:48:18,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 20973 states and 42915 transitions. [2021-01-20 21:48:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:18,231 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:18,232 INFO L504 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] [2021-01-20 21:48:18,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-20 21:48:18,232 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:18,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:18,232 INFO L82 PathProgramCache]: Analyzing trace with hash 350212663, now seen corresponding path program 26 times [2021-01-20 21:48:18,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:18,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496854545] [2021-01-20 21:48:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:19,261 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:48:19,435 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:48:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:19,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496854545] [2021-01-20 21:48:19,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:19,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:48:19,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842849462] [2021-01-20 21:48:19,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:48:19,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:48:19,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:48:19,675 INFO L87 Difference]: Start difference. First operand 20973 states and 42915 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:20,349 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:48:20,551 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:48:20,931 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:48:21,215 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:48:21,980 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:22,286 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:48:22,623 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:48:22,977 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:48:23,362 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:48:23,749 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:48:24,193 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:48:24,820 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 21:48:25,079 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:48:25,348 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:48:25,631 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 21:48:25,869 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:26,292 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:48:26,587 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:48:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:26,724 INFO L93 Difference]: Finished difference Result 21315 states and 43527 transitions. [2021-01-20 21:48:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:48:26,725 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:26,727 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=536, Invalid=1626, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:48:26,727 INFO L78 Accepts]: Start accepts. Automaton has 21315 states and 43527 transitions. Word has length 90 [2021-01-20 21:48:26,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:26,728 INFO L481 AbstractCegarLoop]: Abstraction has 21315 states and 43527 transitions. [2021-01-20 21:48:26,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 21315 states and 43527 transitions. [2021-01-20 21:48:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:26,745 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:26,746 INFO L504 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] [2021-01-20 21:48:26,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-20 21:48:26,746 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:26,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:26,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1658415699, now seen corresponding path program 27 times [2021-01-20 21:48:26,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:26,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367873812] [2021-01-20 21:48:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:27,754 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:48:27,946 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:48:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:28,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367873812] [2021-01-20 21:48:28,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:28,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:48:28,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159731208] [2021-01-20 21:48:28,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:48:28,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:28,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:48:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:48:28,207 INFO L87 Difference]: Start difference. First operand 21315 states and 43527 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:28,893 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:48:29,114 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:48:29,510 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:48:29,793 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:48:30,555 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:30,852 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:48:31,197 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:48:31,562 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 21:48:31,974 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 21:48:32,324 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:48:32,752 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:48:33,376 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 21:48:33,654 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:48:33,920 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:48:34,202 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 21:48:34,434 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:34,703 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:48:35,124 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:48:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:35,270 INFO L93 Difference]: Finished difference Result 21691 states and 44194 transitions. [2021-01-20 21:48:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:48:35,271 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:35,273 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=537, Invalid=1625, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:48:35,273 INFO L78 Accepts]: Start accepts. Automaton has 21691 states and 44194 transitions. Word has length 90 [2021-01-20 21:48:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:35,273 INFO L481 AbstractCegarLoop]: Abstraction has 21691 states and 44194 transitions. [2021-01-20 21:48:35,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 21691 states and 44194 transitions. [2021-01-20 21:48:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:35,287 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:35,287 INFO L504 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] [2021-01-20 21:48:35,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-20 21:48:35,287 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:35,287 INFO L82 PathProgramCache]: Analyzing trace with hash -96257925, now seen corresponding path program 28 times [2021-01-20 21:48:35,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:35,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627473142] [2021-01-20 21:48:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:36,216 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:48:36,387 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:48:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:36,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627473142] [2021-01-20 21:48:36,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:36,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:48:36,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049869027] [2021-01-20 21:48:36,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:48:36,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:36,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:48:36,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:48:36,630 INFO L87 Difference]: Start difference. First operand 21691 states and 44194 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:37,267 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:48:37,469 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:48:37,822 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:48:38,101 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:48:38,787 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:39,074 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:48:39,399 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:48:39,760 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 21:48:40,128 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 21:48:40,554 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 21:48:40,921 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 21:48:41,364 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 21:48:41,959 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 21:48:42,239 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:48:42,512 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:48:42,793 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 21:48:43,025 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:43,291 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:48:43,723 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:48:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:43,867 INFO L93 Difference]: Finished difference Result 21704 states and 44207 transitions. [2021-01-20 21:48:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:48:43,868 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:43,869 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=569, Invalid=1687, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 21:48:43,869 INFO L78 Accepts]: Start accepts. Automaton has 21704 states and 44207 transitions. Word has length 90 [2021-01-20 21:48:43,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:43,870 INFO L481 AbstractCegarLoop]: Abstraction has 21704 states and 44207 transitions. [2021-01-20 21:48:43,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 21704 states and 44207 transitions. [2021-01-20 21:48:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:43,883 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:43,883 INFO L504 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] [2021-01-20 21:48:43,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-20 21:48:43,883 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:43,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:43,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1420152759, now seen corresponding path program 29 times [2021-01-20 21:48:43,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:43,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559642093] [2021-01-20 21:48:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:44,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559642093] [2021-01-20 21:48:44,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:44,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:44,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540919907] [2021-01-20 21:48:44,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:44,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:44,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:44,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:44,501 INFO L87 Difference]: Start difference. First operand 21704 states and 44207 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:46,030 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 21:48:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:47,085 INFO L93 Difference]: Finished difference Result 27747 states and 56577 transitions. [2021-01-20 21:48:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:47,088 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:47,088 INFO L78 Accepts]: Start accepts. Automaton has 27747 states and 56577 transitions. Word has length 90 [2021-01-20 21:48:47,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:47,088 INFO L481 AbstractCegarLoop]: Abstraction has 27747 states and 56577 transitions. [2021-01-20 21:48:47,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:47,089 INFO L276 IsEmpty]: Start isEmpty. Operand 27747 states and 56577 transitions. [2021-01-20 21:48:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:47,109 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:47,109 INFO L504 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] [2021-01-20 21:48:47,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-20 21:48:47,110 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:47,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1226318941, now seen corresponding path program 30 times [2021-01-20 21:48:47,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:47,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168242176] [2021-01-20 21:48:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:47,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168242176] [2021-01-20 21:48:47,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:47,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:47,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544191863] [2021-01-20 21:48:47,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:47,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:47,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:47,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:47,851 INFO L87 Difference]: Start difference. First operand 27747 states and 56577 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:50,070 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-01-20 21:48:50,486 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-01-20 21:48:50,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:50,635 INFO L93 Difference]: Finished difference Result 29373 states and 58665 transitions. [2021-01-20 21:48:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:50,636 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:48:50,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:50,637 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:50,637 INFO L78 Accepts]: Start accepts. Automaton has 29373 states and 58665 transitions. Word has length 90 [2021-01-20 21:48:50,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:50,638 INFO L481 AbstractCegarLoop]: Abstraction has 29373 states and 58665 transitions. [2021-01-20 21:48:50,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 29373 states and 58665 transitions. [2021-01-20 21:48:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:48:50,665 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:50,665 INFO L504 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] [2021-01-20 21:48:50,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-20 21:48:50,666 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:48:50,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash -466205141, now seen corresponding path program 31 times [2021-01-20 21:48:50,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:50,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96605041] [2021-01-20 21:48:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:51,592 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:48:51,768 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:48:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:52,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96605041] [2021-01-20 21:48:52,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:52,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:48:52,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453555529] [2021-01-20 21:48:52,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:48:52,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:52,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:48:52,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:48:52,198 INFO L87 Difference]: Start difference. First operand 29373 states and 58665 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:52,815 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:48:53,009 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:48:53,347 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:48:53,623 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:48:53,914 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:48:54,324 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:48:54,696 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 21:48:55,109 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:48:55,479 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:48:55,911 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 21:48:56,650 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:48:57,080 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 21:48:57,792 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:48:58,191 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 21:48:58,565 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:48:58,984 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 21:48:59,375 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 21:48:59,816 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 21:49:00,198 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:49:00,615 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 21:49:01,187 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:01,596 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:49:01,986 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:49:02,386 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:49:02,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:02,515 INFO L93 Difference]: Finished difference Result 32256 states and 64397 transitions. [2021-01-20 21:49:02,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:49:02,516 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:49:02,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:02,517 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=831, Invalid=1925, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 21:49:02,517 INFO L78 Accepts]: Start accepts. Automaton has 32256 states and 64397 transitions. Word has length 90 [2021-01-20 21:49:02,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:02,517 INFO L481 AbstractCegarLoop]: Abstraction has 32256 states and 64397 transitions. [2021-01-20 21:49:02,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 32256 states and 64397 transitions. [2021-01-20 21:49:02,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:49:02,535 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:02,535 INFO L504 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] [2021-01-20 21:49:02,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-20 21:49:02,536 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:49:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:02,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1966408727, now seen corresponding path program 32 times [2021-01-20 21:49:02,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:02,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313803761] [2021-01-20 21:49:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:03,451 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:49:03,593 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:49:03,759 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:49:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:03,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313803761] [2021-01-20 21:49:03,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:03,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:49:03,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057130409] [2021-01-20 21:49:03,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:49:03,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:49:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:49:03,976 INFO L87 Difference]: Start difference. First operand 32256 states and 64397 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:04,602 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:49:04,797 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:49:05,154 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:49:05,436 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:05,734 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:49:06,163 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:49:06,545 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 21:49:06,963 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:49:07,330 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:49:07,772 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 21:49:08,579 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:08,961 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:49:09,381 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:49:10,302 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:49:10,711 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 21:49:11,086 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:49:11,511 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 21:49:11,908 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 21:49:12,349 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 21:49:12,739 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:49:13,161 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 21:49:13,562 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:14,000 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:49:14,420 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:49:14,846 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:49:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:14,984 INFO L93 Difference]: Finished difference Result 32324 states and 64465 transitions. [2021-01-20 21:49:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:49:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:49:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:14,986 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=832, Invalid=2030, Unknown=0, NotChecked=0, Total=2862 [2021-01-20 21:49:14,987 INFO L78 Accepts]: Start accepts. Automaton has 32324 states and 64465 transitions. Word has length 90 [2021-01-20 21:49:14,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:14,987 INFO L481 AbstractCegarLoop]: Abstraction has 32324 states and 64465 transitions. [2021-01-20 21:49:14,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 32324 states and 64465 transitions. [2021-01-20 21:49:15,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:49:15,007 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:15,007 INFO L504 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] [2021-01-20 21:49:15,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-20 21:49:15,007 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:49:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:15,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1851094277, now seen corresponding path program 33 times [2021-01-20 21:49:15,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:15,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340479122] [2021-01-20 21:49:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:16,068 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:49:16,235 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:49:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:16,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340479122] [2021-01-20 21:49:16,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:16,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:49:16,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640206551] [2021-01-20 21:49:16,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:49:16,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:16,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:49:16,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:49:16,474 INFO L87 Difference]: Start difference. First operand 32324 states and 64465 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:17,161 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:49:17,363 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:49:17,722 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:49:18,009 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:18,313 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:49:18,885 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:49:19,268 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 21:49:19,690 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:49:20,464 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:49:20,835 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:21,237 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:49:21,681 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:49:22,426 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:49:22,829 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:49:23,260 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 21:49:23,637 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:49:24,016 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:49:24,410 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:24,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:24,575 INFO L93 Difference]: Finished difference Result 32320 states and 64461 transitions. [2021-01-20 21:49:24,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:49:24,576 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:49:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:24,577 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=581, Invalid=1581, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:49:24,577 INFO L78 Accepts]: Start accepts. Automaton has 32320 states and 64461 transitions. Word has length 90 [2021-01-20 21:49:24,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:24,578 INFO L481 AbstractCegarLoop]: Abstraction has 32320 states and 64461 transitions. [2021-01-20 21:49:24,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 32320 states and 64461 transitions. [2021-01-20 21:49:24,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:49:24,600 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:24,600 INFO L504 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] [2021-01-20 21:49:24,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-20 21:49:24,601 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:49:24,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:24,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1690825077, now seen corresponding path program 34 times [2021-01-20 21:49:24,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:24,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090937618] [2021-01-20 21:49:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:25,516 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:49:25,691 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:49:25,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:25,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090937618] [2021-01-20 21:49:25,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:25,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:49:25,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870259819] [2021-01-20 21:49:25,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:49:25,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:25,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:49:25,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:49:25,948 INFO L87 Difference]: Start difference. First operand 32320 states and 64461 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:26,607 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:49:26,813 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:49:27,167 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:49:27,452 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:27,754 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:49:28,187 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:49:28,670 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:49:29,110 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 21:49:29,450 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 21:49:29,879 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-01-20 21:49:30,659 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-01-20 21:49:31,090 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 21:49:31,858 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-01-20 21:49:32,256 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-01-20 21:49:32,622 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-01-20 21:49:33,044 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 21:49:33,432 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 21:49:33,875 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 21:49:34,255 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:49:34,680 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 21:49:35,059 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:49:35,468 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:49:35,859 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:49:36,260 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:49:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:36,403 INFO L93 Difference]: Finished difference Result 35410 states and 70686 transitions. [2021-01-20 21:49:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:49:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:49:36,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:36,405 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=838, Invalid=1918, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 21:49:36,405 INFO L78 Accepts]: Start accepts. Automaton has 35410 states and 70686 transitions. Word has length 90 [2021-01-20 21:49:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:36,406 INFO L481 AbstractCegarLoop]: Abstraction has 35410 states and 70686 transitions. [2021-01-20 21:49:36,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 35410 states and 70686 transitions. [2021-01-20 21:49:36,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:49:36,429 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:36,429 INFO L504 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] [2021-01-20 21:49:36,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-20 21:49:36,430 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:49:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:36,430 INFO L82 PathProgramCache]: Analyzing trace with hash -230677867, now seen corresponding path program 35 times [2021-01-20 21:49:36,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:36,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815783310] [2021-01-20 21:49:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:37,340 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:49:37,489 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:49:37,802 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:49:38,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:38,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815783310] [2021-01-20 21:49:38,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:38,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:49:38,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563228849] [2021-01-20 21:49:38,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:49:38,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:38,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:49:38,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:49:38,024 INFO L87 Difference]: Start difference. First operand 35410 states and 70686 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:38,720 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:49:38,929 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:49:39,321 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:49:39,613 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:39,922 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:49:40,383 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:49:40,778 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:49:41,235 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 21:49:41,581 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:49:42,034 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-01-20 21:49:42,962 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:49:43,316 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:49:43,743 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:49:44,591 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:49:45,001 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:49:45,368 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:45,801 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-20 21:49:46,191 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:49:46,638 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-01-20 21:49:47,020 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 21:49:47,444 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-01-20 21:49:47,996 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 21:49:48,410 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-01-20 21:49:48,809 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:49:49,214 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:49:49,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:49,384 INFO L93 Difference]: Finished difference Result 35478 states and 70754 transitions. [2021-01-20 21:49:49,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:49:49,384 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:49:49,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:49,385 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=833, Invalid=2029, Unknown=0, NotChecked=0, Total=2862 [2021-01-20 21:49:49,385 INFO L78 Accepts]: Start accepts. Automaton has 35478 states and 70754 transitions. Word has length 90 [2021-01-20 21:49:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:49,386 INFO L481 AbstractCegarLoop]: Abstraction has 35478 states and 70754 transitions. [2021-01-20 21:49:49,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 35478 states and 70754 transitions. [2021-01-20 21:49:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:49:49,405 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:49,405 INFO L504 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] [2021-01-20 21:49:49,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-01-20 21:49:49,405 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:49:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:49,406 INFO L82 PathProgramCache]: Analyzing trace with hash -2123991779, now seen corresponding path program 36 times [2021-01-20 21:49:49,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:49,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017206368] [2021-01-20 21:49:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:50,387 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:49:50,562 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:49:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:50,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017206368] [2021-01-20 21:49:50,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:50,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:49:50,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517126605] [2021-01-20 21:49:50,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:49:50,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:50,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:49:50,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:49:50,794 INFO L87 Difference]: Start difference. First operand 35478 states and 70754 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:51,417 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:49:51,621 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:49:51,983 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:49:52,273 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:52,580 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:49:53,017 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:49:53,399 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:49:53,819 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:49:54,558 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:49:54,919 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:49:55,305 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:49:55,738 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:49:56,496 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:49:56,873 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:49:57,264 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:49:57,610 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:49:58,146 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 21:49:58,522 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 21:49:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:58,644 INFO L93 Difference]: Finished difference Result 35546 states and 70822 transitions. [2021-01-20 21:49:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:49:58,645 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:49:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:58,646 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=582, Invalid=1580, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:49:58,646 INFO L78 Accepts]: Start accepts. Automaton has 35546 states and 70822 transitions. Word has length 90 [2021-01-20 21:49:58,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:58,646 INFO L481 AbstractCegarLoop]: Abstraction has 35546 states and 70822 transitions. [2021-01-20 21:49:58,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 35546 states and 70822 transitions. [2021-01-20 21:49:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:49:58,667 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:58,667 INFO L504 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] [2021-01-20 21:49:58,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-20 21:49:58,667 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:49:58,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:58,667 INFO L82 PathProgramCache]: Analyzing trace with hash -414283405, now seen corresponding path program 37 times [2021-01-20 21:49:58,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:58,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150255558] [2021-01-20 21:49:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:59,764 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:49:59,938 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:50:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:00,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150255558] [2021-01-20 21:50:00,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:00,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:50:00,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061066015] [2021-01-20 21:50:00,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:50:00,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:00,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:50:00,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:50:00,180 INFO L87 Difference]: Start difference. First operand 35546 states and 70822 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:00,798 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:50:01,003 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:50:01,366 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:50:01,657 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:50:01,972 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:50:02,407 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:50:03,126 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:50:03,476 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:50:03,877 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:50:04,284 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:50:04,738 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:50:05,455 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 21:50:05,803 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 21:50:06,144 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 21:50:06,508 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 21:50:06,806 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:50:07,154 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 21:50:07,509 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 21:50:07,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:07,650 INFO L93 Difference]: Finished difference Result 35583 states and 70859 transitions. [2021-01-20 21:50:07,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:50:07,652 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:50:07,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:07,653 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=566, Invalid=1596, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:50:07,653 INFO L78 Accepts]: Start accepts. Automaton has 35583 states and 70859 transitions. Word has length 90 [2021-01-20 21:50:07,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:07,653 INFO L481 AbstractCegarLoop]: Abstraction has 35583 states and 70859 transitions. [2021-01-20 21:50:07,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:07,653 INFO L276 IsEmpty]: Start isEmpty. Operand 35583 states and 70859 transitions. [2021-01-20 21:50:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:50:07,677 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:07,677 INFO L504 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] [2021-01-20 21:50:07,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-01-20 21:50:07,677 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:50:07,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:07,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1872055529, now seen corresponding path program 38 times [2021-01-20 21:50:07,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:07,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445289070] [2021-01-20 21:50:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:08,844 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:50:09,020 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:50:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:09,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445289070] [2021-01-20 21:50:09,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:09,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:50:09,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018159913] [2021-01-20 21:50:09,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:50:09,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:09,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:50:09,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:50:09,259 INFO L87 Difference]: Start difference. First operand 35583 states and 70859 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:09,939 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:50:10,147 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:50:10,519 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:50:10,809 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:50:11,120 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:50:11,568 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:50:12,327 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:50:12,686 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 21:50:13,106 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 21:50:13,472 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:50:13,914 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:50:14,641 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 21:50:14,993 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 21:50:15,337 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 21:50:15,871 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 21:50:16,171 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:50:16,520 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 21:50:16,886 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 21:50:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:17,055 INFO L93 Difference]: Finished difference Result 35596 states and 70872 transitions. [2021-01-20 21:50:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:50:17,056 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:50:17,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:17,057 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=567, Invalid=1595, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:50:17,057 INFO L78 Accepts]: Start accepts. Automaton has 35596 states and 70872 transitions. Word has length 90 [2021-01-20 21:50:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:17,057 INFO L481 AbstractCegarLoop]: Abstraction has 35596 states and 70872 transitions. [2021-01-20 21:50:17,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:17,058 INFO L276 IsEmpty]: Start isEmpty. Operand 35596 states and 70872 transitions. [2021-01-20 21:50:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:50:17,078 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:17,078 INFO L504 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] [2021-01-20 21:50:17,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-01-20 21:50:17,078 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:50:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:17,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1421891481, now seen corresponding path program 39 times [2021-01-20 21:50:17,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:17,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462928619] [2021-01-20 21:50:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:18,010 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:50:18,194 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:50:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:18,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462928619] [2021-01-20 21:50:18,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:18,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:50:18,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099043155] [2021-01-20 21:50:18,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:50:18,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:18,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:50:18,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:50:18,457 INFO L87 Difference]: Start difference. First operand 35596 states and 70872 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:19,136 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:50:19,341 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:50:19,710 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:50:20,003 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:50:20,312 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:50:20,662 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 21:50:21,095 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-01-20 21:50:21,493 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 21:50:21,966 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:50:22,330 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-01-20 21:50:22,810 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2021-01-20 21:50:23,586 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-01-20 21:50:24,049 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-01-20 21:50:24,524 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2021-01-20 21:50:25,466 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 21:50:25,885 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-01-20 21:50:26,232 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 21:50:26,665 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-01-20 21:50:27,034 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-01-20 21:50:27,487 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-01-20 21:50:27,860 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:50:28,290 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 21:50:28,651 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:50:29,077 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:50:29,453 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 21:50:29,883 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:50:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:30,046 INFO L93 Difference]: Finished difference Result 36268 states and 71923 transitions. [2021-01-20 21:50:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:50:30,048 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:50:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:30,049 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=893, Invalid=2077, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:50:30,049 INFO L78 Accepts]: Start accepts. Automaton has 36268 states and 71923 transitions. Word has length 90 [2021-01-20 21:50:30,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:30,049 INFO L481 AbstractCegarLoop]: Abstraction has 36268 states and 71923 transitions. [2021-01-20 21:50:30,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:30,049 INFO L276 IsEmpty]: Start isEmpty. Operand 36268 states and 71923 transitions. [2021-01-20 21:50:30,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:50:30,069 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:30,069 INFO L504 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] [2021-01-20 21:50:30,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-01-20 21:50:30,070 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:50:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:30,070 INFO L82 PathProgramCache]: Analyzing trace with hash 951572871, now seen corresponding path program 40 times [2021-01-20 21:50:30,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:30,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529100477] [2021-01-20 21:50:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:31,042 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:50:31,189 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:50:31,371 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:50:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:31,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529100477] [2021-01-20 21:50:31,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:31,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:50:31,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095494788] [2021-01-20 21:50:31,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:50:31,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:31,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:50:31,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:50:31,595 INFO L87 Difference]: Start difference. First operand 36268 states and 71923 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:32,275 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:50:32,492 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:50:32,884 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:50:33,189 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:50:33,643 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:50:34,000 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 21:50:34,462 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 21:50:34,879 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 21:50:35,361 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:50:35,725 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 21:50:36,214 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-01-20 21:50:37,018 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:50:37,513 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:50:37,897 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 21:50:38,374 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:50:39,225 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 21:50:39,645 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:50:39,997 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 21:50:40,437 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 21:50:40,812 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 21:50:41,273 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-01-20 21:50:41,636 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 21:50:42,075 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-01-20 21:50:42,438 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 21:50:42,866 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-01-20 21:50:43,244 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 21:50:43,813 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:50:43,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:43,966 INFO L93 Difference]: Finished difference Result 36264 states and 71919 transitions. [2021-01-20 21:50:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:50:43,967 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:50:43,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:43,968 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=885, Invalid=2195, Unknown=0, NotChecked=0, Total=3080 [2021-01-20 21:50:43,968 INFO L78 Accepts]: Start accepts. Automaton has 36264 states and 71919 transitions. Word has length 90 [2021-01-20 21:50:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:43,969 INFO L481 AbstractCegarLoop]: Abstraction has 36264 states and 71919 transitions. [2021-01-20 21:50:43,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 36264 states and 71919 transitions. [2021-01-20 21:50:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:50:43,997 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:43,997 INFO L504 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] [2021-01-20 21:50:43,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-01-20 21:50:43,997 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:50:43,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:43,998 INFO L82 PathProgramCache]: Analyzing trace with hash -941741041, now seen corresponding path program 41 times [2021-01-20 21:50:43,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:43,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924656944] [2021-01-20 21:50:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:45,020 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:50:45,200 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:50:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:45,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924656944] [2021-01-20 21:50:45,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:45,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:50:45,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555916625] [2021-01-20 21:50:45,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:50:45,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:45,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:50:45,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:50:45,430 INFO L87 Difference]: Start difference. First operand 36264 states and 71919 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:46,085 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:50:46,297 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:50:46,670 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:50:46,969 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:50:47,279 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:50:47,633 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 21:50:48,081 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 21:50:48,481 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 21:50:48,936 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 21:50:49,774 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:50:50,149 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 21:50:50,564 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 21:50:50,974 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:50:51,464 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:50:52,351 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 21:50:52,729 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 21:50:53,262 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 21:50:53,664 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 21:50:54,046 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 21:50:54,461 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-01-20 21:50:54,835 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 21:50:55,183 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 21:50:55,578 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:50:55,952 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 21:50:56,344 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:50:56,731 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 21:50:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:56,904 INFO L93 Difference]: Finished difference Result 36260 states and 71915 transitions. [2021-01-20 21:50:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:50:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:50:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:56,906 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=837, Invalid=2133, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:50:56,906 INFO L78 Accepts]: Start accepts. Automaton has 36260 states and 71915 transitions. Word has length 90 [2021-01-20 21:50:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:56,907 INFO L481 AbstractCegarLoop]: Abstraction has 36260 states and 71915 transitions. [2021-01-20 21:50:56,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 36260 states and 71915 transitions. [2021-01-20 21:50:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:50:56,936 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:56,936 INFO L504 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] [2021-01-20 21:50:56,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-20 21:50:56,936 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:50:56,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:56,937 INFO L82 PathProgramCache]: Analyzing trace with hash 321496745, now seen corresponding path program 42 times [2021-01-20 21:50:56,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:56,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365133286] [2021-01-20 21:50:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:57,959 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:50:58,142 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:50:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:58,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365133286] [2021-01-20 21:50:58,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:58,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:50:58,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248164417] [2021-01-20 21:50:58,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:50:58,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:58,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:50:58,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:50:58,393 INFO L87 Difference]: Start difference. First operand 36260 states and 71915 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:59,097 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:50:59,319 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:50:59,737 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:51:00,050 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:51:00,377 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:51:00,745 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 21:51:01,205 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 21:51:02,162 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 21:51:02,660 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:51:03,052 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 21:51:03,460 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 21:51:03,874 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:51:04,347 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:51:05,200 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 21:51:05,561 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 21:51:05,941 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 21:51:06,275 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 21:51:06,631 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 21:51:07,008 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 21:51:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:07,183 INFO L93 Difference]: Finished difference Result 36256 states and 71911 transitions. [2021-01-20 21:51:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:51:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:51:07,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:07,185 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 21:51:07,185 INFO L78 Accepts]: Start accepts. Automaton has 36256 states and 71911 transitions. Word has length 90 [2021-01-20 21:51:07,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:07,186 INFO L481 AbstractCegarLoop]: Abstraction has 36256 states and 71911 transitions. [2021-01-20 21:51:07,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 36256 states and 71911 transitions. [2021-01-20 21:51:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:51:07,210 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:07,210 INFO L504 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] [2021-01-20 21:51:07,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-20 21:51:07,210 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:51:07,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:07,210 INFO L82 PathProgramCache]: Analyzing trace with hash 91382297, now seen corresponding path program 43 times [2021-01-20 21:51:07,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:07,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051296478] [2021-01-20 21:51:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:08,288 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:51:08,470 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:51:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:08,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051296478] [2021-01-20 21:51:08,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:08,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:51:08,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831103326] [2021-01-20 21:51:08,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:51:08,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:08,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:51:08,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:51:08,723 INFO L87 Difference]: Start difference. First operand 36256 states and 71911 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:09,418 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:51:09,641 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:51:10,065 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:51:10,383 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:51:10,711 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:51:11,679 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:12,039 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:51:12,418 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:51:12,848 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:51:13,419 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:51:13,899 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:51:14,680 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 21:51:15,016 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-20 21:51:15,335 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:51:15,672 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:51:15,950 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:16,276 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-01-20 21:51:16,615 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-20 21:51:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:16,800 INFO L93 Difference]: Finished difference Result 36293 states and 71948 transitions. [2021-01-20 21:51:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:51:16,801 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:51:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:16,802 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:51:16,802 INFO L78 Accepts]: Start accepts. Automaton has 36293 states and 71948 transitions. Word has length 90 [2021-01-20 21:51:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:16,802 INFO L481 AbstractCegarLoop]: Abstraction has 36293 states and 71948 transitions. [2021-01-20 21:51:16,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 36293 states and 71948 transitions. [2021-01-20 21:51:16,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:51:16,826 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:16,826 INFO L504 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] [2021-01-20 21:51:16,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-20 21:51:16,827 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:51:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:16,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1917246065, now seen corresponding path program 44 times [2021-01-20 21:51:16,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:16,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576941447] [2021-01-20 21:51:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:18,100 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:51:18,286 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:51:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:18,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576941447] [2021-01-20 21:51:18,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:18,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:51:18,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638642886] [2021-01-20 21:51:18,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:51:18,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:18,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:51:18,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:51:18,542 INFO L87 Difference]: Start difference. First operand 36293 states and 71948 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:19,267 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:51:19,486 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:51:19,887 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:51:20,191 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:51:20,515 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:51:21,380 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:21,726 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:51:22,106 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 21:51:22,546 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 21:51:22,921 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:51:23,392 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:51:24,386 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 21:51:24,722 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-20 21:51:25,045 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:51:25,383 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:51:25,663 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:25,989 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-01-20 21:51:26,333 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-20 21:51:26,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:26,528 INFO L93 Difference]: Finished difference Result 36347 states and 72002 transitions. [2021-01-20 21:51:26,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:51:26,529 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:51:26,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:26,530 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=552, Invalid=1610, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:51:26,530 INFO L78 Accepts]: Start accepts. Automaton has 36347 states and 72002 transitions. Word has length 90 [2021-01-20 21:51:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:26,531 INFO L481 AbstractCegarLoop]: Abstraction has 36347 states and 72002 transitions. [2021-01-20 21:51:26,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 36347 states and 72002 transitions. [2021-01-20 21:51:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:51:26,559 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:26,559 INFO L504 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] [2021-01-20 21:51:26,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-20 21:51:26,560 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:51:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:26,560 INFO L82 PathProgramCache]: Analyzing trace with hash -355088291, now seen corresponding path program 45 times [2021-01-20 21:51:26,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:26,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329632561] [2021-01-20 21:51:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:27,600 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:51:27,784 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:51:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:28,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329632561] [2021-01-20 21:51:28,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:28,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:51:28,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987603637] [2021-01-20 21:51:28,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:51:28,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:28,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:51:28,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:51:28,048 INFO L87 Difference]: Start difference. First operand 36347 states and 72002 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:28,761 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:51:28,976 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:51:29,377 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:51:29,691 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:51:30,015 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:51:30,894 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:31,236 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:51:31,618 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 21:51:32,013 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 21:51:32,473 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 21:51:32,867 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 21:51:33,542 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 21:51:34,294 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 21:51:34,636 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-20 21:51:34,955 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:51:35,297 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:51:35,575 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:35,904 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-01-20 21:51:36,251 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-20 21:51:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:36,450 INFO L93 Difference]: Finished difference Result 36360 states and 72015 transitions. [2021-01-20 21:51:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:51:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:51:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:36,451 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=584, Invalid=1672, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 21:51:36,451 INFO L78 Accepts]: Start accepts. Automaton has 36360 states and 72015 transitions. Word has length 90 [2021-01-20 21:51:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:36,452 INFO L481 AbstractCegarLoop]: Abstraction has 36360 states and 72015 transitions. [2021-01-20 21:51:36,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 36360 states and 72015 transitions. [2021-01-20 21:51:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:51:36,477 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:36,477 INFO L504 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] [2021-01-20 21:51:36,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-20 21:51:36,477 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:51:36,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:36,478 INFO L82 PathProgramCache]: Analyzing trace with hash 796492931, now seen corresponding path program 46 times [2021-01-20 21:51:36,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:36,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727646349] [2021-01-20 21:51:36,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:37,373 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:51:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:37,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727646349] [2021-01-20 21:51:37,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:37,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:51:37,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541514807] [2021-01-20 21:51:37,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:51:37,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:37,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:51:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:51:37,653 INFO L87 Difference]: Start difference. First operand 36360 states and 72015 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:38,346 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:51:38,551 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:51:38,946 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:51:39,666 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:39,931 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:51:40,269 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:40,623 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 21:51:41,081 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:51:41,502 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:51:41,954 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:51:42,563 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:51:42,806 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 21:51:43,051 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 21:51:43,487 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 21:51:43,692 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:43,935 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:51:44,194 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:51:44,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:44,373 INFO L93 Difference]: Finished difference Result 36486 states and 72141 transitions. [2021-01-20 21:51:44,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:51:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:51:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:44,375 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=489, Invalid=1581, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:51:44,375 INFO L78 Accepts]: Start accepts. Automaton has 36486 states and 72141 transitions. Word has length 90 [2021-01-20 21:51:44,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:44,375 INFO L481 AbstractCegarLoop]: Abstraction has 36486 states and 72141 transitions. [2021-01-20 21:51:44,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 36486 states and 72141 transitions. [2021-01-20 21:51:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:51:44,395 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:44,395 INFO L504 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] [2021-01-20 21:51:44,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-01-20 21:51:44,396 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:51:44,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:44,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1302160089, now seen corresponding path program 47 times [2021-01-20 21:51:44,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:44,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858936685] [2021-01-20 21:51:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:45,286 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:51:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:45,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858936685] [2021-01-20 21:51:45,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:45,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:51:45,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554996191] [2021-01-20 21:51:45,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:51:45,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:45,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:51:45,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:51:45,564 INFO L87 Difference]: Start difference. First operand 36486 states and 72141 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:46,208 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:51:46,414 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 21:51:46,817 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:51:47,541 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:47,820 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:51:48,131 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:48,503 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 21:51:48,971 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:51:49,402 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:51:49,860 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:51:50,488 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:51:50,730 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 21:51:50,972 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 21:51:51,224 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 21:51:51,429 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:51,678 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:51:51,931 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:51:52,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:52,081 INFO L93 Difference]: Finished difference Result 36540 states and 72195 transitions. [2021-01-20 21:51:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:51:52,083 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:51:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:52,084 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=489, Invalid=1581, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:51:52,084 INFO L78 Accepts]: Start accepts. Automaton has 36540 states and 72195 transitions. Word has length 90 [2021-01-20 21:51:52,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:52,084 INFO L481 AbstractCegarLoop]: Abstraction has 36540 states and 72195 transitions. [2021-01-20 21:51:52,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:52,084 INFO L276 IsEmpty]: Start isEmpty. Operand 36540 states and 72195 transitions. [2021-01-20 21:51:52,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:51:52,324 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:52,324 INFO L504 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] [2021-01-20 21:51:52,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-01-20 21:51:52,325 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:51:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash 27096587, now seen corresponding path program 48 times [2021-01-20 21:51:52,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:52,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119934521] [2021-01-20 21:51:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:53,395 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:51:53,583 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:51:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:53,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119934521] [2021-01-20 21:51:53,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:53,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:51:53,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583120885] [2021-01-20 21:51:53,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:51:53,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:53,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:51:53,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:51:53,866 INFO L87 Difference]: Start difference. First operand 36540 states and 72195 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:54,546 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:51:54,764 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:51:55,161 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:51:55,874 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 21:51:56,164 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:51:56,487 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:51:56,866 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:51:57,250 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:51:57,668 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:51:58,085 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:51:58,561 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:51:59,197 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 21:51:59,464 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:51:59,718 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 21:51:59,987 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-20 21:52:00,205 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 21:52:00,462 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:52:00,733 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 21:52:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:00,875 INFO L93 Difference]: Finished difference Result 36577 states and 72232 transitions. [2021-01-20 21:52:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:52:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:00,877 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=521, Invalid=1641, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:52:00,877 INFO L78 Accepts]: Start accepts. Automaton has 36577 states and 72232 transitions. Word has length 90 [2021-01-20 21:52:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:00,877 INFO L481 AbstractCegarLoop]: Abstraction has 36577 states and 72232 transitions. [2021-01-20 21:52:00,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 36577 states and 72232 transitions. [2021-01-20 21:52:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:00,901 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:00,901 INFO L504 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] [2021-01-20 21:52:00,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-01-20 21:52:00,901 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:00,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:00,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1981531775, now seen corresponding path program 49 times [2021-01-20 21:52:00,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:00,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271099653] [2021-01-20 21:52:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:02,101 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:52:02,294 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:52:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:02,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271099653] [2021-01-20 21:52:02,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:02,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:02,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409540446] [2021-01-20 21:52:02,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:02,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:02,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:02,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:02,570 INFO L87 Difference]: Start difference. First operand 36577 states and 72232 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:03,141 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:52:03,308 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:52:03,525 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:52:03,911 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:52:04,614 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 21:52:04,915 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:52:05,251 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:52:05,630 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:52:06,016 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 21:52:06,457 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 21:52:06,843 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:52:07,317 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:52:07,997 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 21:52:08,255 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:52:08,517 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 21:52:08,787 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-20 21:52:09,006 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 21:52:09,271 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:52:09,541 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 21:52:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:09,724 INFO L93 Difference]: Finished difference Result 36631 states and 72286 transitions. [2021-01-20 21:52:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:52:09,727 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:09,728 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=522, Invalid=1640, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:52:09,728 INFO L78 Accepts]: Start accepts. Automaton has 36631 states and 72286 transitions. Word has length 90 [2021-01-20 21:52:09,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:09,728 INFO L481 AbstractCegarLoop]: Abstraction has 36631 states and 72286 transitions. [2021-01-20 21:52:09,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:09,729 INFO L276 IsEmpty]: Start isEmpty. Operand 36631 states and 72286 transitions. [2021-01-20 21:52:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:09,753 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:09,754 INFO L504 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] [2021-01-20 21:52:09,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-01-20 21:52:09,754 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash -419374001, now seen corresponding path program 50 times [2021-01-20 21:52:09,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:09,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096798233] [2021-01-20 21:52:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:10,807 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:52:11,119 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:52:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:11,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096798233] [2021-01-20 21:52:11,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:11,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:11,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388610776] [2021-01-20 21:52:11,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:11,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:11,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:11,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:11,404 INFO L87 Difference]: Start difference. First operand 36631 states and 72286 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:11,934 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:52:12,102 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:52:12,330 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 21:52:12,754 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:52:13,542 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 21:52:13,844 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:52:14,187 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:52:14,562 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:52:14,978 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 21:52:15,393 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 21:52:15,873 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 21:52:16,273 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 21:52:16,775 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 21:52:17,519 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 21:52:17,786 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:52:18,046 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 21:52:18,319 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-20 21:52:18,541 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 21:52:18,804 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:52:19,076 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 21:52:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:19,237 INFO L93 Difference]: Finished difference Result 36644 states and 72299 transitions. [2021-01-20 21:52:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:52:19,238 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:19,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:19,239 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=554, Invalid=1702, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 21:52:19,239 INFO L78 Accepts]: Start accepts. Automaton has 36644 states and 72299 transitions. Word has length 90 [2021-01-20 21:52:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:19,239 INFO L481 AbstractCegarLoop]: Abstraction has 36644 states and 72299 transitions. [2021-01-20 21:52:19,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 36644 states and 72299 transitions. [2021-01-20 21:52:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:19,263 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:19,263 INFO L504 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] [2021-01-20 21:52:19,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-01-20 21:52:19,263 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:19,264 INFO L82 PathProgramCache]: Analyzing trace with hash 266936513, now seen corresponding path program 51 times [2021-01-20 21:52:19,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:19,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864626542] [2021-01-20 21:52:19,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:20,186 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:52:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:20,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864626542] [2021-01-20 21:52:20,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:20,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:20,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205258669] [2021-01-20 21:52:20,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:20,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:20,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:20,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:20,610 INFO L87 Difference]: Start difference. First operand 36644 states and 72299 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:21,251 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:52:21,556 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:52:21,869 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:22,157 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:52:22,478 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:52:23,345 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:52:23,673 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:52:24,087 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:52:24,501 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:52:24,943 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:52:25,602 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 21:52:25,898 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:52:26,206 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 21:52:26,534 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 21:52:26,816 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:52:27,118 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 21:52:27,437 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 21:52:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:27,590 INFO L93 Difference]: Finished difference Result 49064 states and 98138 transitions. [2021-01-20 21:52:27,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:52:27,592 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:27,592 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:52:27,593 INFO L78 Accepts]: Start accepts. Automaton has 49064 states and 98138 transitions. Word has length 90 [2021-01-20 21:52:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:27,593 INFO L481 AbstractCegarLoop]: Abstraction has 49064 states and 98138 transitions. [2021-01-20 21:52:27,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 49064 states and 98138 transitions. [2021-01-20 21:52:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:27,625 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:27,625 INFO L504 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] [2021-01-20 21:52:27,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-01-20 21:52:27,625 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:27,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:27,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1314716625, now seen corresponding path program 52 times [2021-01-20 21:52:27,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:27,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087894183] [2021-01-20 21:52:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:28,515 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:52:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:28,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087894183] [2021-01-20 21:52:28,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:28,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:28,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167690670] [2021-01-20 21:52:28,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:28,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:28,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:28,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:28,807 INFO L87 Difference]: Start difference. First operand 49064 states and 98138 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:29,555 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:52:29,887 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:52:30,369 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:30,664 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:52:30,993 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:52:31,363 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:52:31,933 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:52:32,400 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:52:32,877 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:52:33,809 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:52:34,570 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:52:35,003 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:52:35,455 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:52:35,897 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:52:36,345 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:52:36,817 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:52:36,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:36,943 INFO L93 Difference]: Finished difference Result 49275 states and 98477 transitions. [2021-01-20 21:52:36,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 21:52:36,944 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:36,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:36,945 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=555, Invalid=1425, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 21:52:36,945 INFO L78 Accepts]: Start accepts. Automaton has 49275 states and 98477 transitions. Word has length 90 [2021-01-20 21:52:36,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:36,945 INFO L481 AbstractCegarLoop]: Abstraction has 49275 states and 98477 transitions. [2021-01-20 21:52:36,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:36,946 INFO L276 IsEmpty]: Start isEmpty. Operand 49275 states and 98477 transitions. [2021-01-20 21:52:36,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:36,977 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:36,977 INFO L504 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] [2021-01-20 21:52:36,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-01-20 21:52:36,977 INFO L429 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:36,977 INFO L82 PathProgramCache]: Analyzing trace with hash -902644099, now seen corresponding path program 53 times [2021-01-20 21:52:36,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:36,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961555445] [2021-01-20 21:52:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:37,980 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:52:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:38,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961555445] [2021-01-20 21:52:38,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:38,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:38,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211504441] [2021-01-20 21:52:38,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:38,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:38,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:38,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:38,232 INFO L87 Difference]: Start difference. First operand 49275 states and 98477 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:38,933 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:52:39,420 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:52:39,736 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:40,033 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:52:40,361 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:52:40,733 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:52:41,294 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:52:41,766 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:52:42,245 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:52:43,115 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:52:43,542 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:52:44,356 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:52:44,797 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:52:45,265 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:52:45,717 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:52:46,170 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:52:46,632 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:52:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:46,746 INFO L93 Difference]: Finished difference Result 49271 states and 98473 transitions. [2021-01-20 21:52:46,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:52:46,747 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:46,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:46,748 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=563, Invalid=1507, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:52:46,748 INFO L78 Accepts]: Start accepts. Automaton has 49271 states and 98473 transitions. Word has length 90 [2021-01-20 21:52:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:46,748 INFO L481 AbstractCegarLoop]: Abstraction has 49271 states and 98473 transitions. [2021-01-20 21:52:46,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:46,749 INFO L276 IsEmpty]: Start isEmpty. Operand 49271 states and 98473 transitions. [2021-01-20 21:52:46,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:46,779 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:46,780 INFO L504 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] [2021-01-20 21:52:46,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-01-20 21:52:46,780 INFO L429 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:46,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:46,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1101262075, now seen corresponding path program 54 times [2021-01-20 21:52:46,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:46,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080570098] [2021-01-20 21:52:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:47,703 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:52:47,868 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:52:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:48,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080570098] [2021-01-20 21:52:48,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:48,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:48,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016459297] [2021-01-20 21:52:48,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:48,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:48,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:48,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:48,313 INFO L87 Difference]: Start difference. First operand 49271 states and 98473 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:48,998 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:52:49,330 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:52:49,665 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:49,965 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:52:50,306 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:52:50,687 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:52:51,269 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:52:52,162 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:52:52,581 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:52:53,039 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:52:53,799 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 21:52:54,199 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 21:52:54,601 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 21:52:55,207 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 21:52:55,569 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:52:55,976 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 21:52:56,400 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 21:52:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:56,559 INFO L93 Difference]: Finished difference Result 49267 states and 98469 transitions. [2021-01-20 21:52:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:52:56,561 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:52:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:56,561 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=548, Invalid=1522, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:52:56,561 INFO L78 Accepts]: Start accepts. Automaton has 49267 states and 98469 transitions. Word has length 90 [2021-01-20 21:52:56,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:56,562 INFO L481 AbstractCegarLoop]: Abstraction has 49267 states and 98469 transitions. [2021-01-20 21:52:56,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:56,562 INFO L276 IsEmpty]: Start isEmpty. Operand 49267 states and 98469 transitions. [2021-01-20 21:52:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:52:56,590 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:56,590 INFO L504 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] [2021-01-20 21:52:56,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-01-20 21:52:56,590 INFO L429 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:52:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:56,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1670999071, now seen corresponding path program 55 times [2021-01-20 21:52:56,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:56,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242893798] [2021-01-20 21:52:56,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:57,527 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:52:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:57,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242893798] [2021-01-20 21:52:57,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:57,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:57,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978155744] [2021-01-20 21:52:57,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:57,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:57,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:57,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:57,799 INFO L87 Difference]: Start difference. First operand 49267 states and 98469 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:58,473 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:52:58,785 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:52:59,110 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:59,418 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:52:59,749 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:53:00,127 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:53:01,078 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:53:01,483 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:53:01,912 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:02,374 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:03,224 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 21:53:03,587 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 21:53:03,951 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 21:53:04,332 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 21:53:04,660 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:53:05,029 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 21:53:05,407 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 21:53:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:05,582 INFO L93 Difference]: Finished difference Result 49263 states and 98465 transitions. [2021-01-20 21:53:05,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:53:05,584 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:53:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:05,585 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=533, Invalid=1537, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:53:05,585 INFO L78 Accepts]: Start accepts. Automaton has 49263 states and 98465 transitions. Word has length 90 [2021-01-20 21:53:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:05,585 INFO L481 AbstractCegarLoop]: Abstraction has 49263 states and 98465 transitions. [2021-01-20 21:53:05,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 49263 states and 98465 transitions. [2021-01-20 21:53:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:53:05,613 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:05,613 INFO L504 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] [2021-01-20 21:53:05,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-01-20 21:53:05,614 INFO L429 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:53:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:05,614 INFO L82 PathProgramCache]: Analyzing trace with hash 47066477, now seen corresponding path program 56 times [2021-01-20 21:53:05,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:05,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576296377] [2021-01-20 21:53:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:06,360 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:06,535 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:53:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:06,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576296377] [2021-01-20 21:53:06,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:06,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:53:06,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133339070] [2021-01-20 21:53:06,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:53:06,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:06,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:53:06,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:53:06,825 INFO L87 Difference]: Start difference. First operand 49263 states and 98465 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:07,576 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:53:07,936 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:53:08,296 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:08,614 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:53:09,648 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:53:09,978 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:53:10,349 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:53:10,838 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:53:11,391 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:11,861 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:12,608 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 21:53:12,905 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:53:13,182 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 21:53:13,482 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 21:53:13,725 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:53:14,016 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 21:53:14,332 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 21:53:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:14,578 INFO L93 Difference]: Finished difference Result 49683 states and 98885 transitions. [2021-01-20 21:53:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:53:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:53:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:14,580 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=503, Invalid=1567, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:53:14,581 INFO L78 Accepts]: Start accepts. Automaton has 49683 states and 98885 transitions. Word has length 90 [2021-01-20 21:53:14,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:14,581 INFO L481 AbstractCegarLoop]: Abstraction has 49683 states and 98885 transitions. [2021-01-20 21:53:14,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:14,581 INFO L276 IsEmpty]: Start isEmpty. Operand 49683 states and 98885 transitions. [2021-01-20 21:53:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:53:14,611 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:14,612 INFO L504 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] [2021-01-20 21:53:14,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-01-20 21:53:14,612 INFO L429 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:53:14,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:14,612 INFO L82 PathProgramCache]: Analyzing trace with hash -367275633, now seen corresponding path program 57 times [2021-01-20 21:53:14,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:14,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117572684] [2021-01-20 21:53:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:15,551 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:15,761 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:53:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:16,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117572684] [2021-01-20 21:53:16,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:16,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:53:16,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94219672] [2021-01-20 21:53:16,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:53:16,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:16,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:53:16,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:53:16,050 INFO L87 Difference]: Start difference. First operand 49683 states and 98885 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:16,754 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:53:17,090 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:53:17,430 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:17,770 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:53:18,097 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:53:19,117 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:53:19,464 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:53:20,020 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:53:20,457 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:20,919 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:21,673 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 21:53:21,990 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:53:22,314 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 21:53:22,657 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 21:53:22,954 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:53:23,271 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 21:53:23,605 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 21:53:23,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:23,781 INFO L93 Difference]: Finished difference Result 55219 states and 110139 transitions. [2021-01-20 21:53:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:53:23,783 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:53:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:23,784 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:53:23,784 INFO L78 Accepts]: Start accepts. Automaton has 55219 states and 110139 transitions. Word has length 90 [2021-01-20 21:53:23,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:23,784 INFO L481 AbstractCegarLoop]: Abstraction has 55219 states and 110139 transitions. [2021-01-20 21:53:23,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:23,784 INFO L276 IsEmpty]: Start isEmpty. Operand 55219 states and 110139 transitions. [2021-01-20 21:53:23,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:53:23,820 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:23,820 INFO L504 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] [2021-01-20 21:53:23,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-01-20 21:53:23,820 INFO L429 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:53:23,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:23,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1948928771, now seen corresponding path program 58 times [2021-01-20 21:53:23,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:23,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280984976] [2021-01-20 21:53:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:24,609 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:24,793 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:53:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:25,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280984976] [2021-01-20 21:53:25,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:25,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:53:25,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804372517] [2021-01-20 21:53:25,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:53:25,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:25,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:53:25,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:53:25,099 INFO L87 Difference]: Start difference. First operand 55219 states and 110139 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:25,812 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:53:26,149 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:53:26,474 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:26,807 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:53:27,129 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:53:27,526 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:53:28,276 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:53:28,771 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:53:29,287 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:53:30,237 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:53:31,035 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:53:31,486 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:53:31,957 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:53:32,416 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:53:32,871 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:33,342 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:33,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:33,438 INFO L93 Difference]: Finished difference Result 59075 states and 118119 transitions. [2021-01-20 21:53:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 21:53:33,439 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:53:33,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:33,439 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=555, Invalid=1425, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 21:53:33,440 INFO L78 Accepts]: Start accepts. Automaton has 59075 states and 118119 transitions. Word has length 90 [2021-01-20 21:53:33,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:33,440 INFO L481 AbstractCegarLoop]: Abstraction has 59075 states and 118119 transitions. [2021-01-20 21:53:33,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:33,440 INFO L276 IsEmpty]: Start isEmpty. Operand 59075 states and 118119 transitions. [2021-01-20 21:53:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:53:33,480 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:33,480 INFO L504 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] [2021-01-20 21:53:33,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-01-20 21:53:33,480 INFO L429 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:53:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:33,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1536856245, now seen corresponding path program 59 times [2021-01-20 21:53:33,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:33,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118173109] [2021-01-20 21:53:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:34,261 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:34,400 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:34,570 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:53:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:34,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118173109] [2021-01-20 21:53:34,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:34,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:53:34,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961800673] [2021-01-20 21:53:34,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:53:34,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:34,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:53:34,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:53:34,830 INFO L87 Difference]: Start difference. First operand 59075 states and 118119 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:35,586 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:53:36,091 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:53:36,427 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:36,759 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:53:37,086 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:53:37,491 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:53:38,094 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:53:38,585 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:53:39,085 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 21:53:40,004 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:40,449 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:41,335 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 21:53:41,791 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 21:53:42,272 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 21:53:42,740 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 21:53:43,210 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:43,864 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:43,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:43,977 INFO L93 Difference]: Finished difference Result 59143 states and 118187 transitions. [2021-01-20 21:53:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:53:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:53:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:43,980 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=563, Invalid=1507, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:53:43,980 INFO L78 Accepts]: Start accepts. Automaton has 59143 states and 118187 transitions. Word has length 90 [2021-01-20 21:53:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:43,980 INFO L481 AbstractCegarLoop]: Abstraction has 59143 states and 118187 transitions. [2021-01-20 21:53:43,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:43,980 INFO L276 IsEmpty]: Start isEmpty. Operand 59143 states and 118187 transitions. [2021-01-20 21:53:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:53:44,010 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:44,010 INFO L504 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] [2021-01-20 21:53:44,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-01-20 21:53:44,010 INFO L429 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:53:44,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:44,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1735474221, now seen corresponding path program 60 times [2021-01-20 21:53:44,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:44,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477097137] [2021-01-20 21:53:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:44,931 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:45,102 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:53:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:45,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477097137] [2021-01-20 21:53:45,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:45,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:53:45,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321847712] [2021-01-20 21:53:45,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:53:45,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:45,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:53:45,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:53:45,374 INFO L87 Difference]: Start difference. First operand 59143 states and 118187 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:46,201 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:53:46,561 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:53:46,922 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:47,277 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:53:47,618 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:53:48,047 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:53:48,693 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 21:53:49,720 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:53:50,158 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:53:50,642 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:53:51,731 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 21:53:52,166 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 21:53:52,587 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 21:53:53,032 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 21:53:53,410 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:53:53,838 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 21:53:54,290 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 21:53:54,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:54,517 INFO L93 Difference]: Finished difference Result 59211 states and 118255 transitions. [2021-01-20 21:53:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:53:54,518 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:53:54,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:54,518 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=548, Invalid=1522, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:53:54,518 INFO L78 Accepts]: Start accepts. Automaton has 59211 states and 118255 transitions. Word has length 90 [2021-01-20 21:53:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:54,519 INFO L481 AbstractCegarLoop]: Abstraction has 59211 states and 118255 transitions. [2021-01-20 21:53:54,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 59211 states and 118255 transitions. [2021-01-20 21:53:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:53:54,552 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:54,552 INFO L504 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] [2021-01-20 21:53:54,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-01-20 21:53:54,552 INFO L429 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:53:54,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:54,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1036786925, now seen corresponding path program 61 times [2021-01-20 21:53:54,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:54,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290155935] [2021-01-20 21:53:54,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:55,574 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:53:55,819 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:53:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:56,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290155935] [2021-01-20 21:53:56,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:56,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:53:56,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116294751] [2021-01-20 21:53:56,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:53:56,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:56,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:53:56,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:53:56,187 INFO L87 Difference]: Start difference. First operand 59211 states and 118255 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:56,997 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:53:57,363 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:53:57,736 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:58,091 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:53:58,431 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 21:53:58,988 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 21:54:00,325 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:54:00,783 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 21:54:01,254 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 21:54:01,754 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 21:54:02,682 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 21:54:03,040 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 21:54:03,390 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 21:54:03,758 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 21:54:04,067 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 21:54:04,444 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 21:54:04,844 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 21:54:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:05,052 INFO L93 Difference]: Finished difference Result 59279 states and 118323 transitions. [2021-01-20 21:54:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:54:05,054 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:54:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:05,055 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=533, Invalid=1537, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:54:05,055 INFO L78 Accepts]: Start accepts. Automaton has 59279 states and 118323 transitions. Word has length 90 [2021-01-20 21:54:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:05,056 INFO L481 AbstractCegarLoop]: Abstraction has 59279 states and 118323 transitions. [2021-01-20 21:54:05,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 59279 states and 118323 transitions. [2021-01-20 21:54:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:54:05,112 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:05,112 INFO L504 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] [2021-01-20 21:54:05,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-01-20 21:54:05,113 INFO L429 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:54:05,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:05,113 INFO L82 PathProgramCache]: Analyzing trace with hash -38575023, now seen corresponding path program 62 times [2021-01-20 21:54:05,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:05,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221603907] [2021-01-20 21:54:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:06,166 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 21:54:06,353 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 21:54:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:06,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221603907] [2021-01-20 21:54:06,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:06,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:54:06,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298526397] [2021-01-20 21:54:06,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:54:06,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:06,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:54:06,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:54:06,662 INFO L87 Difference]: Start difference. First operand 59279 states and 118323 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:07,476 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 21:54:07,829 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 21:54:08,185 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:54:08,542 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 21:54:09,490 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:54:09,824 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:54:10,222 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 21:54:10,715 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:54:11,188 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:54:11,689 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:54:12,514 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 21:54:12,838 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 21:54:13,149 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 21:54:13,706 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 21:54:13,981 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 21:54:14,298 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 21:54:14,654 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 21:54:14,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:14,953 INFO L93 Difference]: Finished difference Result 59621 states and 118665 transitions. [2021-01-20 21:54:14,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:54:14,954 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:54:14,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:14,955 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=503, Invalid=1567, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 21:54:14,955 INFO L78 Accepts]: Start accepts. Automaton has 59621 states and 118665 transitions. Word has length 90 [2021-01-20 21:54:14,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:14,955 INFO L481 AbstractCegarLoop]: Abstraction has 59621 states and 118665 transitions. [2021-01-20 21:54:14,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:14,956 INFO L276 IsEmpty]: Start isEmpty. Operand 59621 states and 118665 transitions. [2021-01-20 21:54:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:54:15,006 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:15,006 INFO L504 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] [2021-01-20 21:54:15,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-01-20 21:54:15,007 INFO L429 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:54:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1313638525, now seen corresponding path program 63 times [2021-01-20 21:54:15,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:15,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741951879] [2021-01-20 21:54:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:16,328 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:54:16,575 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:54:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:16,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741951879] [2021-01-20 21:54:16,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:16,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:54:16,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341450824] [2021-01-20 21:54:16,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:54:16,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:16,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:54:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:54:16,909 INFO L87 Difference]: Start difference. First operand 59621 states and 118665 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:17,591 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:54:17,773 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:54:18,133 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:54:18,487 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:54:18,841 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:54:19,737 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:54:20,094 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:54:20,491 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:54:21,042 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:54:21,505 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:54:21,958 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:54:22,475 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:54:23,343 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 21:54:23,684 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:54:24,009 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:54:24,356 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 21:54:24,652 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:54:24,971 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:54:25,319 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:54:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:25,545 INFO L93 Difference]: Finished difference Result 59984 states and 119310 transitions. [2021-01-20 21:54:25,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:54:25,547 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:54:25,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:25,548 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=535, Invalid=1627, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:54:25,548 INFO L78 Accepts]: Start accepts. Automaton has 59984 states and 119310 transitions. Word has length 90 [2021-01-20 21:54:25,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:25,548 INFO L481 AbstractCegarLoop]: Abstraction has 59984 states and 119310 transitions. [2021-01-20 21:54:25,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:25,548 INFO L276 IsEmpty]: Start isEmpty. Operand 59984 states and 119310 transitions. [2021-01-20 21:54:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:54:25,587 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:25,587 INFO L504 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] [2021-01-20 21:54:25,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-01-20 21:54:25,587 INFO L429 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:54:25,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:25,587 INFO L82 PathProgramCache]: Analyzing trace with hash 972700409, now seen corresponding path program 64 times [2021-01-20 21:54:25,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:25,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796782230] [2021-01-20 21:54:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:26,816 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:54:27,041 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:54:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:27,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796782230] [2021-01-20 21:54:27,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:27,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:54:27,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473667910] [2021-01-20 21:54:27,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:54:27,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:27,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:54:27,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:54:27,513 INFO L87 Difference]: Start difference. First operand 59984 states and 119310 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:28,315 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:54:28,518 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:54:28,936 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:54:29,345 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:54:29,743 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:54:30,814 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:54:31,165 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:54:31,558 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:54:31,966 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 21:54:32,427 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 21:54:32,838 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:54:33,348 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:54:34,450 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 21:54:34,809 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:54:35,138 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:54:35,488 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 21:54:35,771 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:54:36,101 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:54:36,467 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:54:36,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:36,741 INFO L93 Difference]: Finished difference Result 60381 states and 120010 transitions. [2021-01-20 21:54:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:54:36,742 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:54:36,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:36,743 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=536, Invalid=1626, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:54:36,743 INFO L78 Accepts]: Start accepts. Automaton has 60381 states and 120010 transitions. Word has length 90 [2021-01-20 21:54:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:36,743 INFO L481 AbstractCegarLoop]: Abstraction has 60381 states and 120010 transitions. [2021-01-20 21:54:36,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 60381 states and 120010 transitions. [2021-01-20 21:54:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:54:36,778 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:36,778 INFO L504 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] [2021-01-20 21:54:36,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-01-20 21:54:36,779 INFO L429 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:54:36,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:36,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1760109113, now seen corresponding path program 65 times [2021-01-20 21:54:36,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:36,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904179662] [2021-01-20 21:54:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:38,004 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:54:38,222 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:54:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:38,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904179662] [2021-01-20 21:54:38,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:38,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:54:38,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014102036] [2021-01-20 21:54:38,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:54:38,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:38,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:54:38,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:54:38,533 INFO L87 Difference]: Start difference. First operand 60381 states and 120010 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:39,253 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:54:39,449 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:54:39,852 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:54:40,257 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:54:40,794 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:54:41,990 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:54:42,385 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 21:54:42,804 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:54:43,272 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 21:54:43,749 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 21:54:44,270 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 21:54:44,679 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 21:54:45,198 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 21:54:46,239 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 21:54:46,610 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:54:46,940 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:54:47,408 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 21:54:47,696 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:54:48,038 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 21:54:48,404 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:54:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:48,688 INFO L93 Difference]: Finished difference Result 60394 states and 120023 transitions. [2021-01-20 21:54:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:54:48,689 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:54:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:48,689 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=568, Invalid=1688, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 21:54:48,690 INFO L78 Accepts]: Start accepts. Automaton has 60394 states and 120023 transitions. Word has length 90 [2021-01-20 21:54:48,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:48,690 INFO L481 AbstractCegarLoop]: Abstraction has 60394 states and 120023 transitions. [2021-01-20 21:54:48,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 60394 states and 120023 transitions. [2021-01-20 21:54:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:54:48,725 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:48,725 INFO L504 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] [2021-01-20 21:54:48,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-01-20 21:54:48,725 INFO L429 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:54:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:48,726 INFO L82 PathProgramCache]: Analyzing trace with hash -2130056329, now seen corresponding path program 66 times [2021-01-20 21:54:48,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:48,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033258474] [2021-01-20 21:54:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:49,892 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:54:50,127 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:54:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:50,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033258474] [2021-01-20 21:54:50,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:50,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:54:50,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847134498] [2021-01-20 21:54:50,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:54:50,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:50,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:54:50,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:54:50,449 INFO L87 Difference]: Start difference. First operand 60394 states and 120023 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:51,134 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:54:51,323 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:54:51,686 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:54:52,035 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:54:52,394 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:54:52,758 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:54:53,466 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:54:53,948 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 21:54:54,488 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:54:54,946 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:54:55,528 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 21:54:56,662 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:54:57,175 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 21:54:58,236 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:54:58,681 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 21:54:59,230 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:54:59,746 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 21:55:00,213 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 21:55:00,742 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 21:55:01,203 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:55:01,697 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 21:55:02,165 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:55:02,659 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:55:03,166 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:55:03,664 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:55:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:03,876 INFO L93 Difference]: Finished difference Result 63567 states and 126309 transitions. [2021-01-20 21:55:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:55:03,878 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:55:03,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:03,879 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=830, Invalid=1926, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 21:55:03,879 INFO L78 Accepts]: Start accepts. Automaton has 63567 states and 126309 transitions. Word has length 90 [2021-01-20 21:55:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:03,879 INFO L481 AbstractCegarLoop]: Abstraction has 63567 states and 126309 transitions. [2021-01-20 21:55:03,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 63567 states and 126309 transitions. [2021-01-20 21:55:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:55:03,920 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:03,920 INFO L504 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] [2021-01-20 21:55:03,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-01-20 21:55:03,921 INFO L429 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:55:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:03,921 INFO L82 PathProgramCache]: Analyzing trace with hash 664707381, now seen corresponding path program 67 times [2021-01-20 21:55:03,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:03,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131558745] [2021-01-20 21:55:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:05,233 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:55:05,430 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:55:05,659 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:55:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:05,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131558745] [2021-01-20 21:55:05,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:05,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:55:05,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519036175] [2021-01-20 21:55:05,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:55:05,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:05,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:55:05,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:55:05,934 INFO L87 Difference]: Start difference. First operand 63567 states and 126309 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:06,658 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:55:06,854 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:55:07,222 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:55:07,581 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:55:07,944 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:55:08,318 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:55:08,895 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:55:09,364 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 21:55:09,892 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:55:10,440 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:55:11,014 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 21:55:12,235 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:55:12,713 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:55:13,239 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:55:14,447 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:55:14,905 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 21:55:15,329 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:55:15,877 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 21:55:16,324 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 21:55:16,837 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 21:55:17,306 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:55:17,810 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 21:55:18,293 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:55:18,785 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 21:55:19,285 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:55:19,757 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:55:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:19,981 INFO L93 Difference]: Finished difference Result 63635 states and 126377 transitions. [2021-01-20 21:55:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:55:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:55:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:19,984 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=831, Invalid=2031, Unknown=0, NotChecked=0, Total=2862 [2021-01-20 21:55:19,984 INFO L78 Accepts]: Start accepts. Automaton has 63635 states and 126377 transitions. Word has length 90 [2021-01-20 21:55:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:19,984 INFO L481 AbstractCegarLoop]: Abstraction has 63635 states and 126377 transitions. [2021-01-20 21:55:19,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 63635 states and 126377 transitions. [2021-01-20 21:55:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:55:20,017 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:20,017 INFO L504 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] [2021-01-20 21:55:20,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-01-20 21:55:20,017 INFO L429 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:55:20,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash 780021831, now seen corresponding path program 68 times [2021-01-20 21:55:20,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:20,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106205878] [2021-01-20 21:55:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:21,377 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:55:21,604 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:55:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:21,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106205878] [2021-01-20 21:55:21,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:21,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:55:21,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078108994] [2021-01-20 21:55:21,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:55:21,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:21,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:55:21,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:55:21,897 INFO L87 Difference]: Start difference. First operand 63635 states and 126377 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:22,640 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:55:22,836 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:55:23,210 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:55:23,573 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:55:23,944 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:55:24,330 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:55:24,912 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:55:25,382 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 21:55:25,909 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:55:27,040 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:55:27,500 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:55:28,003 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:55:28,562 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:55:29,739 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 21:55:30,207 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 21:55:30,657 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 21:55:31,061 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:55:31,562 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:55:32,021 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:55:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:32,281 INFO L93 Difference]: Finished difference Result 63631 states and 126373 transitions. [2021-01-20 21:55:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:55:32,283 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:55:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:32,284 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=580, Invalid=1582, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:55:32,284 INFO L78 Accepts]: Start accepts. Automaton has 63631 states and 126373 transitions. Word has length 90 [2021-01-20 21:55:32,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:32,284 INFO L481 AbstractCegarLoop]: Abstraction has 63631 states and 126373 transitions. [2021-01-20 21:55:32,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 63631 states and 126373 transitions. [2021-01-20 21:55:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:55:32,329 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:32,330 INFO L504 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] [2021-01-20 21:55:32,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-01-20 21:55:32,330 INFO L429 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:55:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:32,330 INFO L82 PathProgramCache]: Analyzing trace with hash 26973889, now seen corresponding path program 69 times [2021-01-20 21:55:32,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:32,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2926720] [2021-01-20 21:55:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:33,528 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:55:33,783 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:55:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:34,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2926720] [2021-01-20 21:55:34,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:34,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:55:34,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575183484] [2021-01-20 21:55:34,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:55:34,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:34,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:55:34,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:55:34,123 INFO L87 Difference]: Start difference. First operand 63631 states and 126373 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:34,880 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:55:35,079 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:55:35,485 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:55:35,871 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:55:36,261 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:55:36,723 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:55:37,323 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:55:37,825 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:55:38,389 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 21:55:38,812 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 21:55:39,349 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-01-20 21:55:40,530 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-01-20 21:55:41,046 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 21:55:42,390 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-01-20 21:55:42,888 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-01-20 21:55:43,347 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-01-20 21:55:43,877 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 21:55:44,363 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 21:55:44,913 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 21:55:45,386 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 21:55:45,863 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 21:55:46,384 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:55:46,842 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:55:47,330 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:55:47,795 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:55:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:48,076 INFO L93 Difference]: Finished difference Result 67028 states and 133190 transitions. [2021-01-20 21:55:48,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:55:48,078 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:55:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:48,079 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=837, Invalid=1919, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 21:55:48,079 INFO L78 Accepts]: Start accepts. Automaton has 67028 states and 133190 transitions. Word has length 90 [2021-01-20 21:55:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:48,079 INFO L481 AbstractCegarLoop]: Abstraction has 67028 states and 133190 transitions. [2021-01-20 21:55:48,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 67028 states and 133190 transitions. [2021-01-20 21:55:48,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:55:48,129 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:48,129 INFO L504 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] [2021-01-20 21:55:48,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-01-20 21:55:48,129 INFO L429 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:55:48,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:48,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1894529055, now seen corresponding path program 70 times [2021-01-20 21:55:48,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:48,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241350147] [2021-01-20 21:55:48,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:49,446 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:55:49,650 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:55:49,889 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:55:50,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:50,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241350147] [2021-01-20 21:55:50,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:50,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:55:50,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358196761] [2021-01-20 21:55:50,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:55:50,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:50,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:55:50,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:55:50,180 INFO L87 Difference]: Start difference. First operand 67028 states and 133190 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:50,912 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:55:51,114 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:55:51,526 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:55:51,931 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:55:52,335 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:55:52,751 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:55:53,376 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:55:53,893 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:55:54,476 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 21:55:54,900 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:55:55,464 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-01-20 21:55:56,881 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:55:57,337 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:55:57,876 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:55:59,260 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:55:59,763 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:56:00,191 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:56:00,782 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-20 21:56:01,232 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:56:01,740 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-01-20 21:56:02,185 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 21:56:02,684 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-01-20 21:56:03,147 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 21:56:03,645 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-01-20 21:56:04,130 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:56:04,705 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:56:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:04,906 INFO L93 Difference]: Finished difference Result 67096 states and 133258 transitions. [2021-01-20 21:56:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:56:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:56:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:04,908 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=832, Invalid=2030, Unknown=0, NotChecked=0, Total=2862 [2021-01-20 21:56:04,909 INFO L78 Accepts]: Start accepts. Automaton has 67096 states and 133258 transitions. Word has length 90 [2021-01-20 21:56:04,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:04,909 INFO L481 AbstractCegarLoop]: Abstraction has 67096 states and 133258 transitions. [2021-01-20 21:56:04,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:04,909 INFO L276 IsEmpty]: Start isEmpty. Operand 67096 states and 133258 transitions. [2021-01-20 21:56:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:56:04,949 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:04,949 INFO L504 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] [2021-01-20 21:56:04,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-01-20 21:56:04,949 INFO L429 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:56:04,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:04,950 INFO L82 PathProgramCache]: Analyzing trace with hash 507124329, now seen corresponding path program 71 times [2021-01-20 21:56:04,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:04,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633246083] [2021-01-20 21:56:04,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:06,210 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:56:06,465 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:56:06,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:06,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633246083] [2021-01-20 21:56:06,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:06,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:56:06,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658806849] [2021-01-20 21:56:06,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:56:06,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:06,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:56:06,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:56:06,764 INFO L87 Difference]: Start difference. First operand 67096 states and 133258 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:07,406 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:56:07,609 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:56:07,995 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:56:08,377 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:56:08,757 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:56:09,192 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:56:09,828 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:56:10,341 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 21:56:10,910 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:56:12,009 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:56:12,472 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 21:56:12,955 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 21:56:13,446 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 21:56:14,596 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 21:56:15,036 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:56:15,491 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 21:56:15,898 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 21:56:16,344 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 21:56:16,805 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 21:56:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:16,986 INFO L93 Difference]: Finished difference Result 67164 states and 133326 transitions. [2021-01-20 21:56:16,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:56:16,988 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:56:16,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:16,989 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=581, Invalid=1581, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:56:16,989 INFO L78 Accepts]: Start accepts. Automaton has 67164 states and 133326 transitions. Word has length 90 [2021-01-20 21:56:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:16,989 INFO L481 AbstractCegarLoop]: Abstraction has 67164 states and 133326 transitions. [2021-01-20 21:56:16,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 67164 states and 133326 transitions. [2021-01-20 21:56:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:56:17,030 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:17,031 INFO L504 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] [2021-01-20 21:56:17,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-01-20 21:56:17,031 INFO L429 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:56:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:17,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2078134593, now seen corresponding path program 72 times [2021-01-20 21:56:17,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:17,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032018945] [2021-01-20 21:56:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:18,454 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 21:56:18,698 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 21:56:19,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:19,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032018945] [2021-01-20 21:56:19,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:19,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:56:19,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785244028] [2021-01-20 21:56:19,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:56:19,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:19,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:56:19,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:56:19,014 INFO L87 Difference]: Start difference. First operand 67164 states and 133326 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:19,704 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:56:19,908 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:56:20,310 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:56:20,703 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:56:21,096 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:56:21,494 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:56:22,206 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:56:23,373 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:56:23,830 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 21:56:24,343 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 21:56:24,849 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:56:25,429 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:56:26,581 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 21:56:27,005 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 21:56:27,411 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 21:56:27,833 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 21:56:28,191 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:56:28,600 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 21:56:29,041 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 21:56:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:29,256 INFO L93 Difference]: Finished difference Result 67201 states and 133363 transitions. [2021-01-20 21:56:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:56:29,258 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:56:29,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:29,259 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=565, Invalid=1597, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:56:29,259 INFO L78 Accepts]: Start accepts. Automaton has 67201 states and 133363 transitions. Word has length 90 [2021-01-20 21:56:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:29,259 INFO L481 AbstractCegarLoop]: Abstraction has 67201 states and 133363 transitions. [2021-01-20 21:56:29,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 67201 states and 133363 transitions. [2021-01-20 21:56:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:56:29,376 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:29,376 INFO L504 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] [2021-01-20 21:56:29,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-01-20 21:56:29,376 INFO L429 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:56:29,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:29,376 INFO L82 PathProgramCache]: Analyzing trace with hash 208204341, now seen corresponding path program 73 times [2021-01-20 21:56:29,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:29,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227570387] [2021-01-20 21:56:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:30,611 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:56:30,863 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:56:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:31,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227570387] [2021-01-20 21:56:31,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:31,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:56:31,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705023352] [2021-01-20 21:56:31,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:56:31,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:31,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:56:31,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:56:31,185 INFO L87 Difference]: Start difference. First operand 67201 states and 133363 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:31,940 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:56:32,150 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:56:32,576 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:56:33,104 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:56:33,549 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:56:33,996 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:56:34,667 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 21:56:35,952 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:56:36,428 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 21:56:36,978 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 21:56:37,433 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:56:37,962 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 21:56:39,130 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 21:56:39,570 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 21:56:39,978 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 21:56:40,478 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 21:56:40,849 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 21:56:41,270 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 21:56:41,722 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 21:56:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:41,992 INFO L93 Difference]: Finished difference Result 67214 states and 133376 transitions. [2021-01-20 21:56:41,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:56:41,993 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:56:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:41,994 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=566, Invalid=1596, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:56:41,994 INFO L78 Accepts]: Start accepts. Automaton has 67214 states and 133376 transitions. Word has length 90 [2021-01-20 21:56:41,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:41,994 INFO L481 AbstractCegarLoop]: Abstraction has 67214 states and 133376 transitions. [2021-01-20 21:56:41,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:41,995 INFO L276 IsEmpty]: Start isEmpty. Operand 67214 states and 133376 transitions. [2021-01-20 21:56:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:56:42,031 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:42,031 INFO L504 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] [2021-01-20 21:56:42,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-01-20 21:56:42,031 INFO L429 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:56:42,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:42,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1209224627, now seen corresponding path program 74 times [2021-01-20 21:56:42,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:42,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230095114] [2021-01-20 21:56:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:43,306 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:56:43,583 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:56:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:43,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230095114] [2021-01-20 21:56:43,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:43,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:56:43,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9811287] [2021-01-20 21:56:43,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:56:43,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:43,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:56:43,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:56:43,934 INFO L87 Difference]: Start difference. First operand 67214 states and 133376 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:44,581 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:56:44,789 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:56:45,181 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:56:45,583 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:56:45,991 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:56:46,392 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:56:46,881 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 21:56:47,492 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-01-20 21:56:48,031 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 21:56:48,664 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:56:49,135 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-01-20 21:56:49,786 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2021-01-20 21:56:50,971 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-01-20 21:56:51,550 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-01-20 21:56:52,123 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2021-01-20 21:56:53,374 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 21:56:53,860 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-01-20 21:56:54,283 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 21:56:54,853 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-01-20 21:56:55,324 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-01-20 21:56:55,951 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-01-20 21:56:56,392 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 21:56:56,906 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 21:56:57,347 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:56:57,876 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:56:58,386 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 21:56:58,937 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:56:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:59,119 INFO L93 Difference]: Finished difference Result 67886 states and 134427 transitions. [2021-01-20 21:56:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:56:59,122 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-01-20 21:56:59,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:59,122 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=892, Invalid=2078, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:56:59,122 INFO L78 Accepts]: Start accepts. Automaton has 67886 states and 134427 transitions. Word has length 90 [2021-01-20 21:56:59,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:59,123 INFO L481 AbstractCegarLoop]: Abstraction has 67886 states and 134427 transitions. [2021-01-20 21:56:59,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 67886 states and 134427 transitions. [2021-01-20 21:56:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 21:56:59,177 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:59,178 INFO L504 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] [2021-01-20 21:56:59,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-01-20 21:56:59,178 INFO L429 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:56:59,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:59,178 INFO L82 PathProgramCache]: Analyzing trace with hash -712278317, now seen corresponding path program 75 times [2021-01-20 21:56:59,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:59,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201341932] [2021-01-20 21:56:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:57:00,702 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:57:00,972 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 21:57:01,280 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 21:57:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:57:01,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201341932] [2021-01-20 21:57:01,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:57:01,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:57:01,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663560399] [2021-01-20 21:57:01,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:57:01,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:57:01,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:57:01,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:57:01,637 INFO L87 Difference]: Start difference. First operand 67886 states and 134427 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:57:02,504 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 21:57:02,742 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 21:57:03,196 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 21:57:03,638 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 21:57:04,067 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:57:04,500 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:57:04,968 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 21:57:05,570 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 21:57:06,107 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 21:57:06,722 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 21:57:07,179 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 21:57:07,835 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-01-20 21:57:08,979 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 21:57:09,597 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 21:57:10,073 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 21:57:10,715 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:57:12,161 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 21:57:12,701 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 21:57:13,258 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 Received shutdown request... [2021-01-20 21:57:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:57:13,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-01-20 21:57:13,290 WARN L546 AbstractCegarLoop]: Verification canceled [2021-01-20 21:57:13,295 WARN L250 ceAbstractionStarter]: Timeout [2021-01-20 21:57:13,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:57:13 BasicIcfg [2021-01-20 21:57:13,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:57:13,296 INFO L168 Benchmark]: Toolchain (without parser) took 698153.86 ms. Allocated memory was 302.0 MB in the beginning and 2.4 GB in the end (delta: 2.1 GB). Free memory was 274.9 MB in the beginning and 511.4 MB in the end (delta: -236.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-01-20 21:57:13,296 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:57:13,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1422.37 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 200.7 MB in the end (delta: 73.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 16.0 GB. [2021-01-20 21:57:13,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.17 ms. Allocated memory is still 302.0 MB. Free memory was 200.7 MB in the beginning and 197.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:57:13,297 INFO L168 Benchmark]: Boogie Preprocessor took 47.12 ms. Allocated memory is still 302.0 MB. Free memory was 197.5 MB in the beginning and 194.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:57:13,297 INFO L168 Benchmark]: RCFGBuilder took 949.44 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 194.4 MB in the beginning and 294.5 MB in the end (delta: -100.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:57:13,297 INFO L168 Benchmark]: TraceAbstraction took 695599.17 ms. Allocated memory was 364.9 MB in the beginning and 2.4 GB in the end (delta: 2.0 GB). Free memory was 294.5 MB in the beginning and 511.4 MB in the end (delta: -216.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-01-20 21:57:13,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1422.37 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 200.7 MB in the end (delta: 73.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 125.17 ms. Allocated memory is still 302.0 MB. Free memory was 200.7 MB in the beginning and 197.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 47.12 ms. Allocated memory is still 302.0 MB. Free memory was 197.5 MB in the beginning and 194.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 949.44 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 194.4 MB in the beginning and 294.5 MB in the end (delta: -100.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 695599.17 ms. Allocated memory was 364.9 MB in the beginning and 2.4 GB in the end (delta: 2.0 GB). Free memory was 294.5 MB in the beginning and 511.4 MB in the end (delta: -216.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (67886states) and FLOYD_HOARE automaton (currently 28 states, 24 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (67886states) and FLOYD_HOARE automaton (currently 28 states, 24 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (67886states) and FLOYD_HOARE automaton (currently 28 states, 24 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (67886states) and FLOYD_HOARE automaton (currently 28 states, 24 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 695.3s, OverallIterations: 78, TraceHistogramMax: 1, AutomataDifference: 591.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 25332 SDtfs, 83704 SDslu, 237847 SDs, 0 SdLazy, 100201 SolverSat, 4864 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3586 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 3350 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16538 ImplicationChecksByTransitivity, 513.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67886occurred in iteration=77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 95.6s InterpolantComputationTime, 6918 NumberOfCodeBlocks, 6918 NumberOfCodeBlocksAsserted, 78 NumberOfCheckSat, 6840 ConstructedInterpolants, 0 QuantifiedInterpolants, 8649696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 78 InterpolantComputations, 78 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 !ENTRY org.eclipse.osgi 4 0 2021-01-20 21:57:13.540 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec026723d/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec026723d/.metadata/.log.