/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:14:40,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:14:40,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:14:40,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 16:14:40,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 16:14:40,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 16:14:40,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 16:14:40,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 16:14:40,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 16:14:40,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 16:14:40,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 16:14:40,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 16:14:40,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:14:40,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:14:40,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:14:40,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:14:40,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:14:40,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:14:40,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:14:40,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:14:40,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:14:40,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:14:40,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:14:40,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:14:40,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 16:14:40,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 16:14:40,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 16:14:40,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 16:14:40,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 16:14:40,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 16:14:40,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 16:14:40,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 16:14:40,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 16:14:40,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:14:40,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:14:40,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:14:40,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:14:40,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:14:40,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:14:40,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:14:40,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:14:40,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:14:40,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:14:40,754 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:14:40,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:14:40,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:14:40,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:14:40,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:14:40,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:14:40,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:14:40,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:14:40,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:14:40,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:14:40,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:14:40,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:14:40,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:14:40,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:14:40,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:14:40,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:14:40,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:14:40,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:14:40,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:14:40,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:14:40,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:14:40,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:14:40,977 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:14:40,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-07-09 16:14:41,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/633a65afd/3f02eb097db44d3f8c34e0db2f1f6ef3/FLAGa7c026fae [2021-07-09 16:14:41,454 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:14:41,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-07-09 16:14:41,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/633a65afd/3f02eb097db44d3f8c34e0db2f1f6ef3/FLAGa7c026fae [2021-07-09 16:14:41,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/633a65afd/3f02eb097db44d3f8c34e0db2f1f6ef3 [2021-07-09 16:14:41,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:14:41,483 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:14:41,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:14:41,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:14:41,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:14:41,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b7782f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41, skipping insertion in model container [2021-07-09 16:14:41,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:14:41,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:14:41,661 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 16:14:41,806 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2021-07-09 16:14:41,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:14:41,836 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:14:41,855 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 16:14:41,869 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2021-07-09 16:14:41,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:14:41,927 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:14:41,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41 WrapperNode [2021-07-09 16:14:41,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:14:41,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:14:41,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:14:41,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:14:41,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:14:41,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:14:41,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:14:41,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:14:41,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:41,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:42,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:42,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:42,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (1/1) ... [2021-07-09 16:14:42,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:14:42,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:14:42,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:14:42,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:14:42,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (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 [2021-07-09 16:14:42,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:14:42,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:14:42,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-07-09 16:14:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 16:14:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 16:14:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 16:14:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:14:42,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-09 16:14:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:14:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:14:42,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:14:42,075 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:14:42,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:14:42,360 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-09 16:14:42,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:14:42 BoogieIcfgContainer [2021-07-09 16:14:42,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:14:42,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:14:42,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:14:42,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:14:42,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:14:41" (1/3) ... [2021-07-09 16:14:42,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0f5318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:14:42, skipping insertion in model container [2021-07-09 16:14:42,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:41" (2/3) ... [2021-07-09 16:14:42,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0f5318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:14:42, skipping insertion in model container [2021-07-09 16:14:42,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:14:42" (3/3) ... [2021-07-09 16:14:42,366 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2021-07-09 16:14:42,370 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:14:42,370 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:14:42,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:14:42,370 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:14:42,399 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,399 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,399 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,400 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,401 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,401 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,401 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,401 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,401 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,401 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,402 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,403 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,404 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,405 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,406 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,407 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,408 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,409 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,409 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,409 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,409 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,409 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,410 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,411 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,412 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,413 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,414 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,419 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,421 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,425 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,428 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,428 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,429 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,429 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,432 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,432 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,435 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,435 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,436 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,436 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,439 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,442 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,444 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,444 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,445 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,445 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,446 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,447 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,447 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,447 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,447 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,448 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,448 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:42,587 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-07-09 16:14:42,602 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 16:14:42,613 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:14:42,614 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:14:42,614 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:14:42,614 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:14:42,614 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:14:42,614 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:14:42,614 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:14:42,614 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:14:42,623 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-07-09 16:14:46,343 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88725 states, 88720 states have (on average 4.309422903516682) internal successors, (382332), 88724 states have internal predecessors, (382332), 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) [2021-07-09 16:14:46,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 88725 states, 88720 states have (on average 4.309422903516682) internal successors, (382332), 88724 states have internal predecessors, (382332), 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) [2021-07-09 16:14:46,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-07-09 16:14:46,634 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:46,635 INFO L508 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] [2021-07-09 16:14:46,644 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:46,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1335156933, now seen corresponding path program 1 times [2021-07-09 16:14:46,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:46,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838093009] [2021-07-09 16:14:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:47,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:47,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838093009] [2021-07-09 16:14:47,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838093009] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:47,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:47,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:14:47,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772822366] [2021-07-09 16:14:47,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:14:47,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:47,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:14:47,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:14:47,249 INFO L87 Difference]: Start difference. First operand has 88725 states, 88720 states have (on average 4.309422903516682) internal successors, (382332), 88724 states have internal predecessors, (382332), 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 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-07-09 16:14:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:49,257 INFO L93 Difference]: Finished difference Result 125125 states and 525765 transitions. [2021-07-09 16:14:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:14:49,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2021-07-09 16:14:49,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:50,379 INFO L225 Difference]: With dead ends: 125125 [2021-07-09 16:14:50,379 INFO L226 Difference]: Without dead ends: 58395 [2021-07-09 16:14:50,381 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 50.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:14:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58395 states. [2021-07-09 16:14:53,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58395 to 58395. [2021-07-09 16:14:53,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58395 states, 58392 states have (on average 4.310265104808878) internal successors, (251685), 58394 states have internal predecessors, (251685), 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) [2021-07-09 16:14:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58395 states to 58395 states and 251685 transitions. [2021-07-09 16:14:53,718 INFO L78 Accepts]: Start accepts. Automaton has 58395 states and 251685 transitions. Word has length 43 [2021-07-09 16:14:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:53,722 INFO L482 AbstractCegarLoop]: Abstraction has 58395 states and 251685 transitions. [2021-07-09 16:14:53,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-07-09 16:14:53,723 INFO L276 IsEmpty]: Start isEmpty. Operand 58395 states and 251685 transitions. [2021-07-09 16:14:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 16:14:53,728 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:53,729 INFO L508 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] [2021-07-09 16:14:53,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:14:53,729 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:53,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:53,732 INFO L82 PathProgramCache]: Analyzing trace with hash -798010152, now seen corresponding path program 1 times [2021-07-09 16:14:53,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:53,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854727582] [2021-07-09 16:14:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:53,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:53,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854727582] [2021-07-09 16:14:53,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854727582] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:53,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:53,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:14:53,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873228833] [2021-07-09 16:14:53,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:14:53,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:53,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:14:53,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:14:53,951 INFO L87 Difference]: Start difference. First operand 58395 states and 251685 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2021-07-09 16:14:55,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:55,484 INFO L93 Difference]: Finished difference Result 66911 states and 291720 transitions. [2021-07-09 16:14:55,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:14:55,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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 45 [2021-07-09 16:14:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:55,975 INFO L225 Difference]: With dead ends: 66911 [2021-07-09 16:14:55,975 INFO L226 Difference]: Without dead ends: 66911 [2021-07-09 16:14:55,975 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 189.9ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:14:56,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66911 states. [2021-07-09 16:14:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66911 to 58422. [2021-07-09 16:14:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58422 states, 58419 states have (on average 4.309009055273113) internal successors, (251728), 58421 states have internal predecessors, (251728), 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) [2021-07-09 16:14:58,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58422 states to 58422 states and 251728 transitions. [2021-07-09 16:14:58,579 INFO L78 Accepts]: Start accepts. Automaton has 58422 states and 251728 transitions. Word has length 45 [2021-07-09 16:14:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:58,579 INFO L482 AbstractCegarLoop]: Abstraction has 58422 states and 251728 transitions. [2021-07-09 16:14:58,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2021-07-09 16:14:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 58422 states and 251728 transitions. [2021-07-09 16:14:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 16:14:58,582 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:58,582 INFO L508 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] [2021-07-09 16:14:58,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:14:58,583 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:58,583 INFO L82 PathProgramCache]: Analyzing trace with hash -913072364, now seen corresponding path program 2 times [2021-07-09 16:14:58,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:58,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445251034] [2021-07-09 16:14:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:59,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:59,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445251034] [2021-07-09 16:14:59,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445251034] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:59,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:59,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:14:59,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933365097] [2021-07-09 16:14:59,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:14:59,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:59,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:14:59,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:14:59,120 INFO L87 Difference]: Start difference. First operand 58422 states and 251728 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2021-07-09 16:15:00,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:00,217 INFO L93 Difference]: Finished difference Result 66936 states and 291761 transitions. [2021-07-09 16:15:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:15:00,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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 45 [2021-07-09 16:15:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:00,725 INFO L225 Difference]: With dead ends: 66936 [2021-07-09 16:15:00,725 INFO L226 Difference]: Without dead ends: 66936 [2021-07-09 16:15:00,725 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 238.8ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:15:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66936 states. [2021-07-09 16:15:03,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66936 to 58420. [2021-07-09 16:15:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 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) [2021-07-09 16:15:03,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-07-09 16:15:03,680 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-07-09 16:15:03,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:03,680 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-07-09 16:15:03,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2021-07-09 16:15:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-07-09 16:15:03,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 16:15:03,682 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:03,682 INFO L508 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] [2021-07-09 16:15:03,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:15:03,682 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:03,683 INFO L82 PathProgramCache]: Analyzing trace with hash -254084526, now seen corresponding path program 3 times [2021-07-09 16:15:03,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:03,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203073364] [2021-07-09 16:15:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:03,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:03,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203073364] [2021-07-09 16:15:03,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203073364] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:03,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:03,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:15:03,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265304578] [2021-07-09 16:15:03,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:15:03,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:03,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:15:03,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:15:03,964 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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) [2021-07-09 16:15:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:05,513 INFO L93 Difference]: Finished difference Result 66933 states and 291758 transitions. [2021-07-09 16:15:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:15:05,514 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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 45 [2021-07-09 16:15:05,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:06,017 INFO L225 Difference]: With dead ends: 66933 [2021-07-09 16:15:06,018 INFO L226 Difference]: Without dead ends: 66933 [2021-07-09 16:15:06,018 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 315.9ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:15:06,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66933 states. [2021-07-09 16:15:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66933 to 58420. [2021-07-09 16:15:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 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) [2021-07-09 16:15:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-07-09 16:15:08,527 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-07-09 16:15:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:08,527 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-07-09 16:15:08,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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) [2021-07-09 16:15:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-07-09 16:15:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 16:15:08,528 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:08,528 INFO L508 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] [2021-07-09 16:15:08,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:15:08,530 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:08,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:08,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1738933938, now seen corresponding path program 4 times [2021-07-09 16:15:08,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:08,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6444844] [2021-07-09 16:15:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:08,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:08,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6444844] [2021-07-09 16:15:08,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6444844] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:08,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:08,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:15:08,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074700904] [2021-07-09 16:15:08,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:15:08,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:08,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:15:08,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:15:08,742 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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) [2021-07-09 16:15:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:09,967 INFO L93 Difference]: Finished difference Result 66894 states and 291684 transitions. [2021-07-09 16:15:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:15:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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 45 [2021-07-09 16:15:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:10,660 INFO L225 Difference]: With dead ends: 66894 [2021-07-09 16:15:10,660 INFO L226 Difference]: Without dead ends: 66894 [2021-07-09 16:15:10,661 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 300.1ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:15:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66894 states. [2021-07-09 16:15:12,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66894 to 58347. [2021-07-09 16:15:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58347 states, 58345 states have (on average 4.312228982774873) internal successors, (251597), 58346 states have internal predecessors, (251597), 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) [2021-07-09 16:15:13,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58347 states to 58347 states and 251597 transitions. [2021-07-09 16:15:13,119 INFO L78 Accepts]: Start accepts. Automaton has 58347 states and 251597 transitions. Word has length 45 [2021-07-09 16:15:13,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:13,120 INFO L482 AbstractCegarLoop]: Abstraction has 58347 states and 251597 transitions. [2021-07-09 16:15:13,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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) [2021-07-09 16:15:13,120 INFO L276 IsEmpty]: Start isEmpty. Operand 58347 states and 251597 transitions. [2021-07-09 16:15:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:15:13,129 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:13,129 INFO L508 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] [2021-07-09 16:15:13,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:15:13,130 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:13,131 INFO L82 PathProgramCache]: Analyzing trace with hash -849465654, now seen corresponding path program 1 times [2021-07-09 16:15:13,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:13,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687241791] [2021-07-09 16:15:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:13,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:13,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687241791] [2021-07-09 16:15:13,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687241791] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:13,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:13,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:15:13,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804783389] [2021-07-09 16:15:13,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:15:13,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:13,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:15:13,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:15:13,240 INFO L87 Difference]: Start difference. First operand 58347 states and 251597 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2021-07-09 16:15:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:14,570 INFO L93 Difference]: Finished difference Result 106077 states and 449265 transitions. [2021-07-09 16:15:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:15:14,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2021-07-09 16:15:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:15,366 INFO L225 Difference]: With dead ends: 106077 [2021-07-09 16:15:15,366 INFO L226 Difference]: Without dead ends: 80559 [2021-07-09 16:15:15,367 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:15:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80559 states. [2021-07-09 16:15:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80559 to 60189. [2021-07-09 16:15:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60189 states, 60187 states have (on average 4.185073188562314) internal successors, (251887), 60188 states have internal predecessors, (251887), 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) [2021-07-09 16:15:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60189 states to 60189 states and 251887 transitions. [2021-07-09 16:15:18,320 INFO L78 Accepts]: Start accepts. Automaton has 60189 states and 251887 transitions. Word has length 58 [2021-07-09 16:15:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:18,320 INFO L482 AbstractCegarLoop]: Abstraction has 60189 states and 251887 transitions. [2021-07-09 16:15:18,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2021-07-09 16:15:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 60189 states and 251887 transitions. [2021-07-09 16:15:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 16:15:18,368 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:18,368 INFO L508 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] [2021-07-09 16:15:18,369 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:15:18,369 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:18,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:18,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1887709297, now seen corresponding path program 1 times [2021-07-09 16:15:18,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:18,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082527180] [2021-07-09 16:15:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:18,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:18,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082527180] [2021-07-09 16:15:18,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082527180] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:18,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:18,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 16:15:18,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564824745] [2021-07-09 16:15:18,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 16:15:18,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:18,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 16:15:18,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:15:18,559 INFO L87 Difference]: Start difference. First operand 60189 states and 251887 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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) [2021-07-09 16:15:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:20,091 INFO L93 Difference]: Finished difference Result 69158 states and 289783 transitions. [2021-07-09 16:15:20,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:15:20,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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 63 [2021-07-09 16:15:20,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:20,609 INFO L225 Difference]: With dead ends: 69158 [2021-07-09 16:15:20,609 INFO L226 Difference]: Without dead ends: 69086 [2021-07-09 16:15:20,612 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 210.4ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:15:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69086 states. [2021-07-09 16:15:23,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69086 to 64538. [2021-07-09 16:15:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64538 states, 64536 states have (on average 4.210068798809966) internal successors, (271701), 64537 states have internal predecessors, (271701), 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) [2021-07-09 16:15:23,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 271701 transitions. [2021-07-09 16:15:23,960 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 271701 transitions. Word has length 63 [2021-07-09 16:15:23,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:23,961 INFO L482 AbstractCegarLoop]: Abstraction has 64538 states and 271701 transitions. [2021-07-09 16:15:23,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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) [2021-07-09 16:15:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 271701 transitions. [2021-07-09 16:15:23,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 16:15:23,991 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:23,991 INFO L508 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] [2021-07-09 16:15:23,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:15:23,991 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1016289523, now seen corresponding path program 2 times [2021-07-09 16:15:23,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:23,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015363149] [2021-07-09 16:15:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:24,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:24,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015363149] [2021-07-09 16:15:24,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015363149] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:24,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:24,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 16:15:24,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556556654] [2021-07-09 16:15:24,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 16:15:24,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:24,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 16:15:24,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:15:24,134 INFO L87 Difference]: Start difference. First operand 64538 states and 271701 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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) [2021-07-09 16:15:25,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:25,547 INFO L93 Difference]: Finished difference Result 88074 states and 363236 transitions. [2021-07-09 16:15:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:15:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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 63 [2021-07-09 16:15:25,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:26,534 INFO L225 Difference]: With dead ends: 88074 [2021-07-09 16:15:26,534 INFO L226 Difference]: Without dead ends: 85032 [2021-07-09 16:15:26,534 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-07-09 16:15:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85032 states. [2021-07-09 16:15:28,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85032 to 64274. [2021-07-09 16:15:28,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64274 states, 64272 states have (on average 4.214385735623599) internal successors, (270867), 64273 states have internal predecessors, (270867), 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) [2021-07-09 16:15:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64274 states to 64274 states and 270867 transitions. [2021-07-09 16:15:29,475 INFO L78 Accepts]: Start accepts. Automaton has 64274 states and 270867 transitions. Word has length 63 [2021-07-09 16:15:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:29,475 INFO L482 AbstractCegarLoop]: Abstraction has 64274 states and 270867 transitions. [2021-07-09 16:15:29,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 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) [2021-07-09 16:15:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 64274 states and 270867 transitions. [2021-07-09 16:15:29,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-09 16:15:29,496 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:29,496 INFO L508 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] [2021-07-09 16:15:29,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:15:29,496 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:29,497 INFO L82 PathProgramCache]: Analyzing trace with hash -856202696, now seen corresponding path program 1 times [2021-07-09 16:15:29,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:29,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227056114] [2021-07-09 16:15:29,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:29,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:29,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227056114] [2021-07-09 16:15:29,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227056114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:29,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:29,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:15:29,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060993145] [2021-07-09 16:15:29,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:15:29,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:29,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:15:29,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:15:29,532 INFO L87 Difference]: Start difference. First operand 64274 states and 270867 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-07-09 16:15:30,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:30,658 INFO L93 Difference]: Finished difference Result 105424 states and 431849 transitions. [2021-07-09 16:15:30,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:15:30,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2021-07-09 16:15:30,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:31,036 INFO L225 Difference]: With dead ends: 105424 [2021-07-09 16:15:31,037 INFO L226 Difference]: Without dead ends: 74071 [2021-07-09 16:15:31,037 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 54.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:15:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74071 states. [2021-07-09 16:15:33,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74071 to 66493. [2021-07-09 16:15:33,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66493 states, 66492 states have (on average 4.090507128677134) internal successors, (271986), 66492 states have internal predecessors, (271986), 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) [2021-07-09 16:15:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66493 states to 66493 states and 271986 transitions. [2021-07-09 16:15:33,635 INFO L78 Accepts]: Start accepts. Automaton has 66493 states and 271986 transitions. Word has length 64 [2021-07-09 16:15:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:33,636 INFO L482 AbstractCegarLoop]: Abstraction has 66493 states and 271986 transitions. [2021-07-09 16:15:33,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-07-09 16:15:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 66493 states and 271986 transitions. [2021-07-09 16:15:34,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:15:34,010 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:34,010 INFO L508 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] [2021-07-09 16:15:34,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:15:34,010 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:34,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:34,012 INFO L82 PathProgramCache]: Analyzing trace with hash 692312305, now seen corresponding path program 1 times [2021-07-09 16:15:34,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:34,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363579394] [2021-07-09 16:15:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:34,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:34,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363579394] [2021-07-09 16:15:34,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363579394] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:34,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:34,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:15:34,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432261564] [2021-07-09 16:15:34,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:15:34,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:34,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:15:34,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:15:34,365 INFO L87 Difference]: Start difference. First operand 66493 states and 271986 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 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) [2021-07-09 16:15:35,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:35,372 INFO L93 Difference]: Finished difference Result 69911 states and 283080 transitions. [2021-07-09 16:15:35,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:15:35,372 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 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 66 [2021-07-09 16:15:35,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:35,656 INFO L225 Difference]: With dead ends: 69911 [2021-07-09 16:15:35,656 INFO L226 Difference]: Without dead ends: 68849 [2021-07-09 16:15:35,656 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 298.4ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:15:35,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68849 states. [2021-07-09 16:15:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68849 to 66928. [2021-07-09 16:15:37,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66928 states, 66927 states have (on average 4.075948421414377) internal successors, (272791), 66927 states have internal predecessors, (272791), 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) [2021-07-09 16:15:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66928 states to 66928 states and 272791 transitions. [2021-07-09 16:15:38,316 INFO L78 Accepts]: Start accepts. Automaton has 66928 states and 272791 transitions. Word has length 66 [2021-07-09 16:15:38,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:38,316 INFO L482 AbstractCegarLoop]: Abstraction has 66928 states and 272791 transitions. [2021-07-09 16:15:38,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 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) [2021-07-09 16:15:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 66928 states and 272791 transitions. [2021-07-09 16:15:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:15:38,356 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:38,356 INFO L508 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] [2021-07-09 16:15:38,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:15:38,356 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:38,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:38,357 INFO L82 PathProgramCache]: Analyzing trace with hash -991837905, now seen corresponding path program 2 times [2021-07-09 16:15:38,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:38,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090313414] [2021-07-09 16:15:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:38,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:38,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090313414] [2021-07-09 16:15:38,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090313414] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:38,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:38,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-09 16:15:38,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980025481] [2021-07-09 16:15:38,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 16:15:38,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:38,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 16:15:38,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:15:38,693 INFO L87 Difference]: Start difference. First operand 66928 states and 272791 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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) [2021-07-09 16:15:40,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:40,039 INFO L93 Difference]: Finished difference Result 75410 states and 306936 transitions. [2021-07-09 16:15:40,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 16:15:40,039 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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 66 [2021-07-09 16:15:40,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:40,732 INFO L225 Difference]: With dead ends: 75410 [2021-07-09 16:15:40,732 INFO L226 Difference]: Without dead ends: 74906 [2021-07-09 16:15:40,732 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 348.7ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:15:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74906 states. [2021-07-09 16:15:42,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74906 to 70681. [2021-07-09 16:15:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 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) [2021-07-09 16:15:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-07-09 16:15:43,804 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-07-09 16:15:43,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:43,804 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-07-09 16:15:43,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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) [2021-07-09 16:15:43,804 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-07-09 16:15:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:15:43,851 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:43,852 INFO L508 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] [2021-07-09 16:15:43,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:15:43,852 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:43,852 INFO L82 PathProgramCache]: Analyzing trace with hash 229445895, now seen corresponding path program 3 times [2021-07-09 16:15:43,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:43,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401386173] [2021-07-09 16:15:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:44,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:44,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401386173] [2021-07-09 16:15:44,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401386173] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:44,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:44,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:15:44,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161664994] [2021-07-09 16:15:44,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:15:44,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:44,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:15:44,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:15:44,310 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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) [2021-07-09 16:15:45,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:45,911 INFO L93 Difference]: Finished difference Result 79159 states and 323521 transitions. [2021-07-09 16:15:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:15:45,911 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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 66 [2021-07-09 16:15:45,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:46,766 INFO L225 Difference]: With dead ends: 79159 [2021-07-09 16:15:46,767 INFO L226 Difference]: Without dead ends: 78655 [2021-07-09 16:15:46,767 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 534.1ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:15:47,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78655 states. [2021-07-09 16:15:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78655 to 70673. [2021-07-09 16:15:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70673 states, 70672 states have (on average 4.094507018338239) internal successors, (289367), 70672 states have internal predecessors, (289367), 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) [2021-07-09 16:15:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70673 states to 70673 states and 289367 transitions. [2021-07-09 16:15:50,373 INFO L78 Accepts]: Start accepts. Automaton has 70673 states and 289367 transitions. Word has length 66 [2021-07-09 16:15:50,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:50,374 INFO L482 AbstractCegarLoop]: Abstraction has 70673 states and 289367 transitions. [2021-07-09 16:15:50,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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) [2021-07-09 16:15:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 70673 states and 289367 transitions. [2021-07-09 16:15:50,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:15:50,435 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:50,435 INFO L508 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] [2021-07-09 16:15:50,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:15:50,435 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:50,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:50,435 INFO L82 PathProgramCache]: Analyzing trace with hash -606040241, now seen corresponding path program 4 times [2021-07-09 16:15:50,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:50,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321535434] [2021-07-09 16:15:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:50,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:50,753 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:50,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321535434] [2021-07-09 16:15:50,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321535434] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:50,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:50,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:15:50,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223893973] [2021-07-09 16:15:50,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:15:50,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:50,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:15:50,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:15:50,754 INFO L87 Difference]: Start difference. First operand 70673 states and 289367 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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) [2021-07-09 16:15:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:52,180 INFO L93 Difference]: Finished difference Result 79131 states and 323463 transitions. [2021-07-09 16:15:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:15:52,181 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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 66 [2021-07-09 16:15:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:53,059 INFO L225 Difference]: With dead ends: 79131 [2021-07-09 16:15:53,060 INFO L226 Difference]: Without dead ends: 78627 [2021-07-09 16:15:53,060 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 408.7ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:15:53,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78627 states. [2021-07-09 16:15:55,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78627 to 70669. [2021-07-09 16:15:55,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70669 states, 70668 states have (on average 4.094625573102395) internal successors, (289359), 70668 states have internal predecessors, (289359), 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) [2021-07-09 16:15:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70669 states to 70669 states and 289359 transitions. [2021-07-09 16:15:56,276 INFO L78 Accepts]: Start accepts. Automaton has 70669 states and 289359 transitions. Word has length 66 [2021-07-09 16:15:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:56,276 INFO L482 AbstractCegarLoop]: Abstraction has 70669 states and 289359 transitions. [2021-07-09 16:15:56,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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) [2021-07-09 16:15:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 70669 states and 289359 transitions. [2021-07-09 16:15:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:15:56,355 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:56,355 INFO L508 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] [2021-07-09 16:15:56,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 16:15:56,355 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:56,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:56,355 INFO L82 PathProgramCache]: Analyzing trace with hash 703438637, now seen corresponding path program 5 times [2021-07-09 16:15:56,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:56,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498583790] [2021-07-09 16:15:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:56,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:56,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498583790] [2021-07-09 16:15:56,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498583790] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:56,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:56,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:15:56,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369077737] [2021-07-09 16:15:56,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:15:56,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:56,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:15:56,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:15:56,827 INFO L87 Difference]: Start difference. First operand 70669 states and 289359 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 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) [2021-07-09 16:15:58,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:58,543 INFO L93 Difference]: Finished difference Result 84203 states and 345435 transitions. [2021-07-09 16:15:58,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:15:58,544 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 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 66 [2021-07-09 16:15:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:59,660 INFO L225 Difference]: With dead ends: 84203 [2021-07-09 16:15:59,661 INFO L226 Difference]: Without dead ends: 83699 [2021-07-09 16:15:59,662 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 640.0ms TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:15:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83699 states. [2021-07-09 16:16:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83699 to 70667. [2021-07-09 16:16:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70667 states, 70666 states have (on average 4.094684855517505) internal successors, (289355), 70666 states have internal predecessors, (289355), 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) [2021-07-09 16:16:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70667 states to 70667 states and 289355 transitions. [2021-07-09 16:16:02,719 INFO L78 Accepts]: Start accepts. Automaton has 70667 states and 289355 transitions. Word has length 66 [2021-07-09 16:16:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:02,719 INFO L482 AbstractCegarLoop]: Abstraction has 70667 states and 289355 transitions. [2021-07-09 16:16:02,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 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) [2021-07-09 16:16:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 70667 states and 289355 transitions. [2021-07-09 16:16:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:16:02,813 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:02,813 INFO L508 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] [2021-07-09 16:16:02,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 16:16:02,813 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:02,814 INFO L82 PathProgramCache]: Analyzing trace with hash -415123371, now seen corresponding path program 6 times [2021-07-09 16:16:02,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:02,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853850635] [2021-07-09 16:16:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:03,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:03,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853850635] [2021-07-09 16:16:03,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853850635] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:03,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:03,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:16:03,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687772478] [2021-07-09 16:16:03,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:16:03,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:03,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:16:03,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:16:03,235 INFO L87 Difference]: Start difference. First operand 70667 states and 289355 transitions. Second operand has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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) [2021-07-09 16:16:05,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:05,516 INFO L93 Difference]: Finished difference Result 78786 states and 322505 transitions. [2021-07-09 16:16:05,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:16:05,516 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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 66 [2021-07-09 16:16:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:05,935 INFO L225 Difference]: With dead ends: 78786 [2021-07-09 16:16:05,935 INFO L226 Difference]: Without dead ends: 78282 [2021-07-09 16:16:05,936 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 673.2ms TimeCoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:16:06,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78282 states. [2021-07-09 16:16:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78282 to 70342. [2021-07-09 16:16:08,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70342 states, 70341 states have (on average 4.1005956696663395) internal successors, (288440), 70341 states have internal predecessors, (288440), 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) [2021-07-09 16:16:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70342 states to 70342 states and 288440 transitions. [2021-07-09 16:16:08,458 INFO L78 Accepts]: Start accepts. Automaton has 70342 states and 288440 transitions. Word has length 66 [2021-07-09 16:16:08,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:08,458 INFO L482 AbstractCegarLoop]: Abstraction has 70342 states and 288440 transitions. [2021-07-09 16:16:08,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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) [2021-07-09 16:16:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 70342 states and 288440 transitions. [2021-07-09 16:16:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:16:08,517 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:08,517 INFO L508 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] [2021-07-09 16:16:08,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 16:16:08,517 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:08,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:08,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1094311497, now seen corresponding path program 1 times [2021-07-09 16:16:08,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:08,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009369479] [2021-07-09 16:16:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:08,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:08,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009369479] [2021-07-09 16:16:08,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009369479] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:08,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:08,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:16:08,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493935081] [2021-07-09 16:16:08,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:16:08,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:08,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:16:08,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:16:08,703 INFO L87 Difference]: Start difference. First operand 70342 states and 288440 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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) [2021-07-09 16:16:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:10,061 INFO L93 Difference]: Finished difference Result 77298 states and 315059 transitions. [2021-07-09 16:16:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 16:16:10,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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 69 [2021-07-09 16:16:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:10,352 INFO L225 Difference]: With dead ends: 77298 [2021-07-09 16:16:10,352 INFO L226 Difference]: Without dead ends: 76578 [2021-07-09 16:16:10,353 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 297.1ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:16:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76578 states. [2021-07-09 16:16:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76578 to 70314. [2021-07-09 16:16:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70314 states, 70313 states have (on average 4.10160283304652) internal successors, (288396), 70313 states have internal predecessors, (288396), 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) [2021-07-09 16:16:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70314 states to 70314 states and 288396 transitions. [2021-07-09 16:16:12,900 INFO L78 Accepts]: Start accepts. Automaton has 70314 states and 288396 transitions. Word has length 69 [2021-07-09 16:16:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:12,901 INFO L482 AbstractCegarLoop]: Abstraction has 70314 states and 288396 transitions. [2021-07-09 16:16:12,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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) [2021-07-09 16:16:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 70314 states and 288396 transitions. [2021-07-09 16:16:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:16:12,961 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:12,961 INFO L508 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] [2021-07-09 16:16:12,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 16:16:12,961 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:12,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1692032881, now seen corresponding path program 2 times [2021-07-09 16:16:12,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:12,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483165560] [2021-07-09 16:16:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:13,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:13,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483165560] [2021-07-09 16:16:13,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483165560] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:13,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:13,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:16:13,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237117639] [2021-07-09 16:16:13,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:16:13,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:13,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:16:13,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:16:13,038 INFO L87 Difference]: Start difference. First operand 70314 states and 288396 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2021-07-09 16:16:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:14,124 INFO L93 Difference]: Finished difference Result 85369 states and 345953 transitions. [2021-07-09 16:16:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:16:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 69 [2021-07-09 16:16:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:14,866 INFO L225 Difference]: With dead ends: 85369 [2021-07-09 16:16:14,866 INFO L226 Difference]: Without dead ends: 81191 [2021-07-09 16:16:14,867 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 127.7ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:15,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81191 states. [2021-07-09 16:16:17,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81191 to 69420. [2021-07-09 16:16:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69420 states, 69419 states have (on average 4.103343465045593) internal successors, (284850), 69419 states have internal predecessors, (284850), 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) [2021-07-09 16:16:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69420 states to 69420 states and 284850 transitions. [2021-07-09 16:16:17,969 INFO L78 Accepts]: Start accepts. Automaton has 69420 states and 284850 transitions. Word has length 69 [2021-07-09 16:16:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:17,969 INFO L482 AbstractCegarLoop]: Abstraction has 69420 states and 284850 transitions. [2021-07-09 16:16:17,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2021-07-09 16:16:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 69420 states and 284850 transitions. [2021-07-09 16:16:18,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:16:18,039 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:18,039 INFO L508 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] [2021-07-09 16:16:18,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 16:16:18,039 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:18,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:18,064 INFO L82 PathProgramCache]: Analyzing trace with hash -879290743, now seen corresponding path program 1 times [2021-07-09 16:16:18,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:18,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602821232] [2021-07-09 16:16:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:18,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:18,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602821232] [2021-07-09 16:16:18,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602821232] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:18,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:18,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:16:18,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333503720] [2021-07-09 16:16:18,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:16:18,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:18,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:16:18,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:16:18,164 INFO L87 Difference]: Start difference. First operand 69420 states and 284850 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2021-07-09 16:16:19,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:19,595 INFO L93 Difference]: Finished difference Result 83347 states and 337904 transitions. [2021-07-09 16:16:19,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:16:19,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 69 [2021-07-09 16:16:19,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:19,981 INFO L225 Difference]: With dead ends: 83347 [2021-07-09 16:16:19,982 INFO L226 Difference]: Without dead ends: 76082 [2021-07-09 16:16:19,983 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 185.3ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:16:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76082 states. [2021-07-09 16:16:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76082 to 67935. [2021-07-09 16:16:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67935 states, 67934 states have (on average 4.105970500780169) internal successors, (278935), 67934 states have internal predecessors, (278935), 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) [2021-07-09 16:16:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67935 states to 67935 states and 278935 transitions. [2021-07-09 16:16:22,697 INFO L78 Accepts]: Start accepts. Automaton has 67935 states and 278935 transitions. Word has length 69 [2021-07-09 16:16:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:22,697 INFO L482 AbstractCegarLoop]: Abstraction has 67935 states and 278935 transitions. [2021-07-09 16:16:22,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2021-07-09 16:16:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 67935 states and 278935 transitions. [2021-07-09 16:16:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:16:22,773 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:22,773 INFO L508 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] [2021-07-09 16:16:22,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 16:16:22,773 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:22,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:22,773 INFO L82 PathProgramCache]: Analyzing trace with hash 344141304, now seen corresponding path program 1 times [2021-07-09 16:16:22,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:22,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219021608] [2021-07-09 16:16:22,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:23,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:23,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219021608] [2021-07-09 16:16:23,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219021608] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:23,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:23,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-09 16:16:23,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109244276] [2021-07-09 16:16:23,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-09 16:16:23,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:23,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-09 16:16:23,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:16:23,615 INFO L87 Difference]: Start difference. First operand 67935 states and 278935 transitions. Second operand has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 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) [2021-07-09 16:16:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:25,449 INFO L93 Difference]: Finished difference Result 79316 states and 326988 transitions. [2021-07-09 16:16:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:16:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 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 71 [2021-07-09 16:16:25,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:26,257 INFO L225 Difference]: With dead ends: 79316 [2021-07-09 16:16:26,258 INFO L226 Difference]: Without dead ends: 78812 [2021-07-09 16:16:26,258 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1328.0ms TimeCoverageRelationStatistics Valid=211, Invalid=1429, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:16:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78812 states. [2021-07-09 16:16:28,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78812 to 66470. [2021-07-09 16:16:28,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66470 states, 66469 states have (on average 4.113075268170125) internal successors, (273392), 66469 states have internal predecessors, (273392), 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) [2021-07-09 16:16:29,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66470 states to 66470 states and 273392 transitions. [2021-07-09 16:16:29,203 INFO L78 Accepts]: Start accepts. Automaton has 66470 states and 273392 transitions. Word has length 71 [2021-07-09 16:16:29,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:29,203 INFO L482 AbstractCegarLoop]: Abstraction has 66470 states and 273392 transitions. [2021-07-09 16:16:29,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 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) [2021-07-09 16:16:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 66470 states and 273392 transitions. [2021-07-09 16:16:29,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:16:29,313 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:29,313 INFO L508 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] [2021-07-09 16:16:29,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 16:16:29,313 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:29,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1729508893, now seen corresponding path program 1 times [2021-07-09 16:16:29,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:29,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543623951] [2021-07-09 16:16:29,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:29,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:29,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:29,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543623951] [2021-07-09 16:16:29,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543623951] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:29,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:29,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:16:29,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795654] [2021-07-09 16:16:29,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:16:29,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:29,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:16:29,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:16:29,597 INFO L87 Difference]: Start difference. First operand 66470 states and 273392 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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) [2021-07-09 16:16:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:30,692 INFO L93 Difference]: Finished difference Result 71397 states and 290905 transitions. [2021-07-09 16:16:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:16:30,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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 74 [2021-07-09 16:16:30,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:31,030 INFO L225 Difference]: With dead ends: 71397 [2021-07-09 16:16:31,030 INFO L226 Difference]: Without dead ends: 68955 [2021-07-09 16:16:31,031 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 254.9ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:16:31,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68955 states. [2021-07-09 16:16:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68955 to 67573. [2021-07-09 16:16:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67573 states, 67572 states have (on average 4.1057242644882495) internal successors, (277432), 67572 states have internal predecessors, (277432), 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) [2021-07-09 16:16:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67573 states to 67573 states and 277432 transitions. [2021-07-09 16:16:33,875 INFO L78 Accepts]: Start accepts. Automaton has 67573 states and 277432 transitions. Word has length 74 [2021-07-09 16:16:33,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:33,875 INFO L482 AbstractCegarLoop]: Abstraction has 67573 states and 277432 transitions. [2021-07-09 16:16:33,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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) [2021-07-09 16:16:33,875 INFO L276 IsEmpty]: Start isEmpty. Operand 67573 states and 277432 transitions. [2021-07-09 16:16:33,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:16:33,966 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:33,966 INFO L508 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] [2021-07-09 16:16:33,966 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 16:16:33,966 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:33,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:33,966 INFO L82 PathProgramCache]: Analyzing trace with hash 48169051, now seen corresponding path program 2 times [2021-07-09 16:16:33,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:33,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727865765] [2021-07-09 16:16:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:34,345 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-07-09 16:16:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:34,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:34,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727865765] [2021-07-09 16:16:34,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727865765] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:34,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:34,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:16:34,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250630971] [2021-07-09 16:16:34,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:16:34,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:34,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:16:34,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:16:34,519 INFO L87 Difference]: Start difference. First operand 67573 states and 277432 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2021-07-09 16:16:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:35,707 INFO L93 Difference]: Finished difference Result 74855 states and 304390 transitions. [2021-07-09 16:16:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:16:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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 74 [2021-07-09 16:16:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:35,975 INFO L225 Difference]: With dead ends: 74855 [2021-07-09 16:16:35,976 INFO L226 Difference]: Without dead ends: 72413 [2021-07-09 16:16:35,976 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 695.0ms TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:16:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72413 states. [2021-07-09 16:16:38,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72413 to 67598. [2021-07-09 16:16:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67598 states, 67597 states have (on average 4.107001790020267) internal successors, (277621), 67597 states have internal predecessors, (277621), 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) [2021-07-09 16:16:38,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67598 states to 67598 states and 277621 transitions. [2021-07-09 16:16:38,694 INFO L78 Accepts]: Start accepts. Automaton has 67598 states and 277621 transitions. Word has length 74 [2021-07-09 16:16:38,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:38,694 INFO L482 AbstractCegarLoop]: Abstraction has 67598 states and 277621 transitions. [2021-07-09 16:16:38,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2021-07-09 16:16:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 67598 states and 277621 transitions. [2021-07-09 16:16:38,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:16:38,785 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:38,785 INFO L508 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] [2021-07-09 16:16:38,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 16:16:38,785 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:38,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:38,785 INFO L82 PathProgramCache]: Analyzing trace with hash -254694524, now seen corresponding path program 1 times [2021-07-09 16:16:38,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:38,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944359950] [2021-07-09 16:16:38,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:39,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:39,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:39,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944359950] [2021-07-09 16:16:39,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944359950] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:39,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:39,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:16:39,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162795138] [2021-07-09 16:16:39,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:16:39,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:39,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:16:39,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:16:39,138 INFO L87 Difference]: Start difference. First operand 67598 states and 277621 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2021-07-09 16:16:39,745 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-07-09 16:16:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:40,975 INFO L93 Difference]: Finished difference Result 74825 states and 304219 transitions. [2021-07-09 16:16:40,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:16:40,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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 74 [2021-07-09 16:16:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:41,260 INFO L225 Difference]: With dead ends: 74825 [2021-07-09 16:16:41,260 INFO L226 Difference]: Without dead ends: 72329 [2021-07-09 16:16:41,260 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 998.3ms TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:16:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72329 states. [2021-07-09 16:16:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72329 to 67541. [2021-07-09 16:16:43,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67541 states, 67540 states have (on average 4.1069588392063965) internal successors, (277384), 67540 states have internal predecessors, (277384), 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) [2021-07-09 16:16:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67541 states to 67541 states and 277384 transitions. [2021-07-09 16:16:43,965 INFO L78 Accepts]: Start accepts. Automaton has 67541 states and 277384 transitions. Word has length 74 [2021-07-09 16:16:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:43,966 INFO L482 AbstractCegarLoop]: Abstraction has 67541 states and 277384 transitions. [2021-07-09 16:16:43,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2021-07-09 16:16:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand 67541 states and 277384 transitions. [2021-07-09 16:16:44,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:16:44,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:44,123 INFO L508 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] [2021-07-09 16:16:44,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 16:16:44,124 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:44,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2002192333, now seen corresponding path program 3 times [2021-07-09 16:16:44,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:44,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429256565] [2021-07-09 16:16:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:44,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:44,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429256565] [2021-07-09 16:16:44,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429256565] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:44,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:44,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:16:44,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685036981] [2021-07-09 16:16:44,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:16:44,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:44,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:16:44,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:44,798 INFO L87 Difference]: Start difference. First operand 67541 states and 277384 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:16:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:47,480 INFO L93 Difference]: Finished difference Result 77310 states and 314245 transitions. [2021-07-09 16:16:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:16:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:16:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:48,112 INFO L225 Difference]: With dead ends: 77310 [2021-07-09 16:16:48,112 INFO L226 Difference]: Without dead ends: 74868 [2021-07-09 16:16:48,112 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1392.5ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:16:48,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74868 states. [2021-07-09 16:16:49,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74868 to 70054. [2021-07-09 16:16:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70054 states, 70053 states have (on average 4.103707193125206) internal successors, (287477), 70053 states have internal predecessors, (287477), 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) [2021-07-09 16:16:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70054 states to 70054 states and 287477 transitions. [2021-07-09 16:16:50,597 INFO L78 Accepts]: Start accepts. Automaton has 70054 states and 287477 transitions. Word has length 74 [2021-07-09 16:16:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:50,597 INFO L482 AbstractCegarLoop]: Abstraction has 70054 states and 287477 transitions. [2021-07-09 16:16:50,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:16:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 70054 states and 287477 transitions. [2021-07-09 16:16:50,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:16:50,739 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:50,740 INFO L508 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] [2021-07-09 16:16:50,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 16:16:50,740 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:50,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:50,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1094297504, now seen corresponding path program 2 times [2021-07-09 16:16:50,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:50,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335747606] [2021-07-09 16:16:50,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:51,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:51,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335747606] [2021-07-09 16:16:51,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335747606] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:51,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:51,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:16:51,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498852234] [2021-07-09 16:16:51,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:16:51,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:51,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:16:51,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:16:51,055 INFO L87 Difference]: Start difference. First operand 70054 states and 287477 transitions. Second operand has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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) [2021-07-09 16:16:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:52,614 INFO L93 Difference]: Finished difference Result 80722 states and 328282 transitions. [2021-07-09 16:16:52,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:16:52,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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 74 [2021-07-09 16:16:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:53,440 INFO L225 Difference]: With dead ends: 80722 [2021-07-09 16:16:53,440 INFO L226 Difference]: Without dead ends: 78226 [2021-07-09 16:16:53,441 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 516.0ms TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:16:53,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78226 states. [2021-07-09 16:16:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78226 to 69945. [2021-07-09 16:16:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69945 states, 69944 states have (on average 4.115235045179) internal successors, (287836), 69944 states have internal predecessors, (287836), 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) [2021-07-09 16:16:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69945 states to 69945 states and 287836 transitions. [2021-07-09 16:16:56,151 INFO L78 Accepts]: Start accepts. Automaton has 69945 states and 287836 transitions. Word has length 74 [2021-07-09 16:16:56,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:56,151 INFO L482 AbstractCegarLoop]: Abstraction has 69945 states and 287836 transitions. [2021-07-09 16:16:56,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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) [2021-07-09 16:16:56,152 INFO L276 IsEmpty]: Start isEmpty. Operand 69945 states and 287836 transitions. [2021-07-09 16:16:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:16:56,319 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:56,319 INFO L508 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] [2021-07-09 16:16:56,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 16:16:56,319 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:56,320 INFO L82 PathProgramCache]: Analyzing trace with hash -498450916, now seen corresponding path program 3 times [2021-07-09 16:16:56,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:56,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132994302] [2021-07-09 16:16:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:56,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:56,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132994302] [2021-07-09 16:16:56,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132994302] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:56,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:56,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:16:56,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392491590] [2021-07-09 16:16:56,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:16:56,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:56,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:16:56,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:56,707 INFO L87 Difference]: Start difference. First operand 69945 states and 287836 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:16:57,518 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-07-09 16:16:58,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:58,625 INFO L93 Difference]: Finished difference Result 83111 states and 339735 transitions. [2021-07-09 16:16:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:16:58,626 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:16:58,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:58,957 INFO L225 Difference]: With dead ends: 83111 [2021-07-09 16:16:58,957 INFO L226 Difference]: Without dead ends: 82391 [2021-07-09 16:16:58,957 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1020.4ms TimeCoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:16:59,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82391 states. [2021-07-09 16:17:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82391 to 69040. [2021-07-09 16:17:01,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69040 states, 69039 states have (on average 4.117049783455728) internal successors, (284237), 69039 states have internal predecessors, (284237), 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) [2021-07-09 16:17:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69040 states to 69040 states and 284237 transitions. [2021-07-09 16:17:01,806 INFO L78 Accepts]: Start accepts. Automaton has 69040 states and 284237 transitions. Word has length 74 [2021-07-09 16:17:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:01,807 INFO L482 AbstractCegarLoop]: Abstraction has 69040 states and 284237 transitions. [2021-07-09 16:17:01,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 69040 states and 284237 transitions. [2021-07-09 16:17:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:01,901 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:01,901 INFO L508 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] [2021-07-09 16:17:01,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 16:17:01,901 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:01,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1892190614, now seen corresponding path program 4 times [2021-07-09 16:17:01,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:01,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648586835] [2021-07-09 16:17:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:02,353 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2021-07-09 16:17:02,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:02,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:02,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648586835] [2021-07-09 16:17:02,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648586835] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:02,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:02,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:17:02,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746823402] [2021-07-09 16:17:02,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:17:02,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:02,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:17:02,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:17:02,731 INFO L87 Difference]: Start difference. First operand 69040 states and 284237 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-07-09 16:17:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:04,281 INFO L93 Difference]: Finished difference Result 75975 states and 309710 transitions. [2021-07-09 16:17:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:17:04,281 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:04,751 INFO L225 Difference]: With dead ends: 75975 [2021-07-09 16:17:04,751 INFO L226 Difference]: Without dead ends: 75255 [2021-07-09 16:17:04,751 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1272.1ms TimeCoverageRelationStatistics Valid=205, Invalid=1201, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:17:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75255 states. [2021-07-09 16:17:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75255 to 64122. [2021-07-09 16:17:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64122 states, 64121 states have (on average 4.112022582305329) internal successors, (263667), 64121 states have internal predecessors, (263667), 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) [2021-07-09 16:17:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64122 states to 64122 states and 263667 transitions. [2021-07-09 16:17:06,749 INFO L78 Accepts]: Start accepts. Automaton has 64122 states and 263667 transitions. Word has length 74 [2021-07-09 16:17:06,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:06,749 INFO L482 AbstractCegarLoop]: Abstraction has 64122 states and 263667 transitions. [2021-07-09 16:17:06,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-07-09 16:17:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 64122 states and 263667 transitions. [2021-07-09 16:17:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:07,235 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:07,242 INFO L508 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] [2021-07-09 16:17:07,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 16:17:07,242 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:07,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:07,243 INFO L82 PathProgramCache]: Analyzing trace with hash -153897446, now seen corresponding path program 1 times [2021-07-09 16:17:07,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:07,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836949508] [2021-07-09 16:17:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:07,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:07,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:07,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836949508] [2021-07-09 16:17:07,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836949508] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:07,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:07,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:17:07,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597419244] [2021-07-09 16:17:07,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:17:07,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:07,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:17:07,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:17:07,654 INFO L87 Difference]: Start difference. First operand 64122 states and 263667 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:09,114 INFO L93 Difference]: Finished difference Result 73885 states and 301287 transitions. [2021-07-09 16:17:09,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:17:09,114 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:09,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:09,735 INFO L225 Difference]: With dead ends: 73885 [2021-07-09 16:17:09,735 INFO L226 Difference]: Without dead ends: 73177 [2021-07-09 16:17:09,736 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 584.2ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:17:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73177 states. [2021-07-09 16:17:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73177 to 64113. [2021-07-09 16:17:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64113 states, 64112 states have (on average 4.112365859745445) internal successors, (263652), 64112 states have internal predecessors, (263652), 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) [2021-07-09 16:17:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64113 states to 64113 states and 263652 transitions. [2021-07-09 16:17:12,112 INFO L78 Accepts]: Start accepts. Automaton has 64113 states and 263652 transitions. Word has length 74 [2021-07-09 16:17:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:12,112 INFO L482 AbstractCegarLoop]: Abstraction has 64113 states and 263652 transitions. [2021-07-09 16:17:12,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 64113 states and 263652 transitions. [2021-07-09 16:17:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:12,584 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:12,584 INFO L508 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] [2021-07-09 16:17:12,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 16:17:12,584 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:12,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:12,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1259251836, now seen corresponding path program 2 times [2021-07-09 16:17:12,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:12,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717345829] [2021-07-09 16:17:12,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:13,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:13,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717345829] [2021-07-09 16:17:13,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717345829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:13,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:13,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:17:13,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339733362] [2021-07-09 16:17:13,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:17:13,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:13,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:17:13,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:17:13,118 INFO L87 Difference]: Start difference. First operand 64113 states and 263652 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:14,936 INFO L93 Difference]: Finished difference Result 72818 states and 297312 transitions. [2021-07-09 16:17:14,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:17:14,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:14,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:15,621 INFO L225 Difference]: With dead ends: 72818 [2021-07-09 16:17:15,621 INFO L226 Difference]: Without dead ends: 72110 [2021-07-09 16:17:15,621 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 824.5ms TimeCoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:17:15,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72110 states. [2021-07-09 16:17:17,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72110 to 64119. [2021-07-09 16:17:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64119 states, 64118 states have (on average 4.1122773636108425) internal successors, (263671), 64118 states have internal predecessors, (263671), 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) [2021-07-09 16:17:17,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64119 states to 64119 states and 263671 transitions. [2021-07-09 16:17:17,666 INFO L78 Accepts]: Start accepts. Automaton has 64119 states and 263671 transitions. Word has length 74 [2021-07-09 16:17:17,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:17,667 INFO L482 AbstractCegarLoop]: Abstraction has 64119 states and 263671 transitions. [2021-07-09 16:17:17,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:17,667 INFO L276 IsEmpty]: Start isEmpty. Operand 64119 states and 263671 transitions. [2021-07-09 16:17:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:17,750 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:18,031 INFO L508 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] [2021-07-09 16:17:18,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 16:17:18,031 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:18,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:18,032 INFO L82 PathProgramCache]: Analyzing trace with hash -884497698, now seen corresponding path program 3 times [2021-07-09 16:17:18,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:18,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765776080] [2021-07-09 16:17:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:18,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:18,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765776080] [2021-07-09 16:17:18,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765776080] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:18,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:18,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:17:18,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101058752] [2021-07-09 16:17:18,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:17:18,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:18,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:17:18,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:17:18,470 INFO L87 Difference]: Start difference. First operand 64119 states and 263671 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-09 16:17:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:19,989 INFO L93 Difference]: Finished difference Result 69384 states and 283663 transitions. [2021-07-09 16:17:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:17:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:20,249 INFO L225 Difference]: With dead ends: 69384 [2021-07-09 16:17:20,249 INFO L226 Difference]: Without dead ends: 68676 [2021-07-09 16:17:20,250 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 704.3ms TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:17:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68676 states. [2021-07-09 16:17:22,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68676 to 60663. [2021-07-09 16:17:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 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) [2021-07-09 16:17:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-09 16:17:22,645 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-09 16:17:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:22,645 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-09 16:17:22,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-09 16:17:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-09 16:17:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:22,731 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:22,731 INFO L508 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] [2021-07-09 16:17:22,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 16:17:22,732 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:22,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:22,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1180050333, now seen corresponding path program 4 times [2021-07-09 16:17:22,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:22,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125876328] [2021-07-09 16:17:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:23,401 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 19 [2021-07-09 16:17:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:23,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:23,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125876328] [2021-07-09 16:17:23,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125876328] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:23,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:23,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:17:23,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866924698] [2021-07-09 16:17:23,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:17:23,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:23,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:17:23,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:17:23,816 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:25,612 INFO L93 Difference]: Finished difference Result 66656 states and 271449 transitions. [2021-07-09 16:17:25,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:17:25,612 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:25,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:26,202 INFO L225 Difference]: With dead ends: 66656 [2021-07-09 16:17:26,202 INFO L226 Difference]: Without dead ends: 64214 [2021-07-09 16:17:26,203 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1286.2ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:17:26,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64214 states. [2021-07-09 16:17:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64214 to 60663. [2021-07-09 16:17:28,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 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) [2021-07-09 16:17:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-09 16:17:28,444 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-09 16:17:28,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:28,445 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-09 16:17:28,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-09 16:17:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:28,520 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:28,520 INFO L508 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] [2021-07-09 16:17:28,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 16:17:28,520 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:28,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:28,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1096231199, now seen corresponding path program 5 times [2021-07-09 16:17:28,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:28,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047874994] [2021-07-09 16:17:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:29,079 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-07-09 16:17:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:29,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:29,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047874994] [2021-07-09 16:17:29,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047874994] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:29,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:29,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:17:29,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955438453] [2021-07-09 16:17:29,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:17:29,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:29,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:17:29,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:17:29,252 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:31,055 INFO L93 Difference]: Finished difference Result 65568 states and 267428 transitions. [2021-07-09 16:17:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:17:31,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:31,300 INFO L225 Difference]: With dead ends: 65568 [2021-07-09 16:17:31,300 INFO L226 Difference]: Without dead ends: 63126 [2021-07-09 16:17:31,300 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1370.5ms TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:17:31,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63126 states. [2021-07-09 16:17:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63126 to 60663. [2021-07-09 16:17:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 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) [2021-07-09 16:17:34,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-09 16:17:34,113 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-09 16:17:34,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:34,113 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-09 16:17:34,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:34,113 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-09 16:17:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:34,200 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:34,200 INFO L508 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] [2021-07-09 16:17:34,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 16:17:34,200 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:34,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1554251865, now seen corresponding path program 6 times [2021-07-09 16:17:34,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:34,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18027857] [2021-07-09 16:17:34,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:34,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:34,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18027857] [2021-07-09 16:17:34,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18027857] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:34,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:34,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:17:34,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580534353] [2021-07-09 16:17:34,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:17:34,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:34,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:17:34,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:17:34,650 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:36,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:36,430 INFO L93 Difference]: Finished difference Result 66611 states and 271396 transitions. [2021-07-09 16:17:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:17:36,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:36,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:36,679 INFO L225 Difference]: With dead ends: 66611 [2021-07-09 16:17:36,680 INFO L226 Difference]: Without dead ends: 64169 [2021-07-09 16:17:36,680 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 734.9ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:17:36,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64169 states. [2021-07-09 16:17:38,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64169 to 60663. [2021-07-09 16:17:38,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 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) [2021-07-09 16:17:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-09 16:17:39,329 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-09 16:17:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:39,329 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-09 16:17:39,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2021-07-09 16:17:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-09 16:17:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:39,475 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:39,475 INFO L508 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] [2021-07-09 16:17:39,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 16:17:39,475 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:39,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1517951545, now seen corresponding path program 7 times [2021-07-09 16:17:39,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:39,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305047908] [2021-07-09 16:17:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:40,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:40,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305047908] [2021-07-09 16:17:40,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305047908] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:40,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:40,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:17:40,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027181027] [2021-07-09 16:17:40,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:17:40,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:40,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:17:40,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:17:40,057 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 transitions. Second operand has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 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) [2021-07-09 16:17:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:41,727 INFO L93 Difference]: Finished difference Result 65664 states and 267958 transitions. [2021-07-09 16:17:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:17:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:42,550 INFO L225 Difference]: With dead ends: 65664 [2021-07-09 16:17:42,550 INFO L226 Difference]: Without dead ends: 63267 [2021-07-09 16:17:42,551 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1124.9ms TimeCoverageRelationStatistics Valid=199, Invalid=1283, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:17:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63267 states. [2021-07-09 16:17:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63267 to 60663. [2021-07-09 16:17:44,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 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) [2021-07-09 16:17:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-09 16:17:44,737 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-09 16:17:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:44,737 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-09 16:17:44,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 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) [2021-07-09 16:17:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-09 16:17:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:44,818 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:44,818 INFO L508 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] [2021-07-09 16:17:44,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 16:17:44,819 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash -755893651, now seen corresponding path program 8 times [2021-07-09 16:17:44,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:44,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045519069] [2021-07-09 16:17:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:45,356 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-07-09 16:17:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:45,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:45,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045519069] [2021-07-09 16:17:45,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045519069] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:45,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:45,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:17:45,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940098398] [2021-07-09 16:17:45,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:17:45,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:45,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:17:45,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:17:45,753 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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) [2021-07-09 16:17:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:47,454 INFO L93 Difference]: Finished difference Result 65379 states and 266975 transitions. [2021-07-09 16:17:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:17:47,454 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:47,942 INFO L225 Difference]: With dead ends: 65379 [2021-07-09 16:17:47,942 INFO L226 Difference]: Without dead ends: 63027 [2021-07-09 16:17:47,943 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1431.3ms TimeCoverageRelationStatistics Valid=204, Invalid=1518, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:17:48,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63027 states. [2021-07-09 16:17:49,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63027 to 59988. [2021-07-09 16:17:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59988 states, 59987 states have (on average 4.1125243802823945) internal successors, (246698), 59987 states have internal predecessors, (246698), 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) [2021-07-09 16:17:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59988 states to 59988 states and 246698 transitions. [2021-07-09 16:17:50,329 INFO L78 Accepts]: Start accepts. Automaton has 59988 states and 246698 transitions. Word has length 74 [2021-07-09 16:17:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:50,330 INFO L482 AbstractCegarLoop]: Abstraction has 59988 states and 246698 transitions. [2021-07-09 16:17:50,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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) [2021-07-09 16:17:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 59988 states and 246698 transitions. [2021-07-09 16:17:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:50,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:50,404 INFO L508 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] [2021-07-09 16:17:50,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 16:17:50,404 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:50,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:50,404 INFO L82 PathProgramCache]: Analyzing trace with hash -6480265, now seen corresponding path program 9 times [2021-07-09 16:17:50,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:50,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614374700] [2021-07-09 16:17:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:50,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:50,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614374700] [2021-07-09 16:17:50,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614374700] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:50,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:50,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:17:50,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064060918] [2021-07-09 16:17:50,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:17:50,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:50,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:17:50,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:17:50,704 INFO L87 Difference]: Start difference. First operand 59988 states and 246698 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2021-07-09 16:17:51,239 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-07-09 16:17:52,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:52,366 INFO L93 Difference]: Finished difference Result 62998 states and 256403 transitions. [2021-07-09 16:17:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:17:52,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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 74 [2021-07-09 16:17:52,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:52,753 INFO L225 Difference]: With dead ends: 62998 [2021-07-09 16:17:52,753 INFO L226 Difference]: Without dead ends: 60556 [2021-07-09 16:17:52,754 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 824.8ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:17:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60556 states. [2021-07-09 16:17:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60556 to 58100. [2021-07-09 16:17:54,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58100 states, 58099 states have (on average 4.112549269350591) internal successors, (238935), 58099 states have internal predecessors, (238935), 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) [2021-07-09 16:17:54,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58100 states to 58100 states and 238935 transitions. [2021-07-09 16:17:54,604 INFO L78 Accepts]: Start accepts. Automaton has 58100 states and 238935 transitions. Word has length 74 [2021-07-09 16:17:54,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:54,604 INFO L482 AbstractCegarLoop]: Abstraction has 58100 states and 238935 transitions. [2021-07-09 16:17:54,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2021-07-09 16:17:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 58100 states and 238935 transitions. [2021-07-09 16:17:54,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-09 16:17:54,684 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:54,684 INFO L508 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] [2021-07-09 16:17:54,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 16:17:54,685 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:54,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:54,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1313616915, now seen corresponding path program 1 times [2021-07-09 16:17:54,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:54,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391816002] [2021-07-09 16:17:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:55,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:55,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391816002] [2021-07-09 16:17:55,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391816002] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:55,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:55,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-09 16:17:55,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703959683] [2021-07-09 16:17:55,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 16:17:55,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:55,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 16:17:55,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:17:55,141 INFO L87 Difference]: Start difference. First operand 58100 states and 238935 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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) [2021-07-09 16:17:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:56,007 INFO L93 Difference]: Finished difference Result 68834 states and 279215 transitions. [2021-07-09 16:17:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:17:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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 75 [2021-07-09 16:17:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:56,220 INFO L225 Difference]: With dead ends: 68834 [2021-07-09 16:17:56,220 INFO L226 Difference]: Without dead ends: 56513 [2021-07-09 16:17:56,221 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 206.5ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:17:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56513 states. [2021-07-09 16:17:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56513 to 49781. [2021-07-09 16:17:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49781 states, 49780 states have (on average 4.071032543190036) internal successors, (202656), 49780 states have internal predecessors, (202656), 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) [2021-07-09 16:17:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49781 states to 49781 states and 202656 transitions. [2021-07-09 16:17:58,035 INFO L78 Accepts]: Start accepts. Automaton has 49781 states and 202656 transitions. Word has length 75 [2021-07-09 16:17:58,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:58,035 INFO L482 AbstractCegarLoop]: Abstraction has 49781 states and 202656 transitions. [2021-07-09 16:17:58,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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) [2021-07-09 16:17:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 49781 states and 202656 transitions. [2021-07-09 16:17:58,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-09 16:17:58,106 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:58,106 INFO L508 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] [2021-07-09 16:17:58,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 16:17:58,106 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:58,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:58,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1333925235, now seen corresponding path program 1 times [2021-07-09 16:17:58,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:58,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914775943] [2021-07-09 16:17:58,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:58,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:58,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914775943] [2021-07-09 16:17:58,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914775943] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:58,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:58,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:17:58,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038353964] [2021-07-09 16:17:58,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:17:58,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:58,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:17:58,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:17:58,188 INFO L87 Difference]: Start difference. First operand 49781 states and 202656 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2021-07-09 16:17:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:59,083 INFO L93 Difference]: Finished difference Result 63188 states and 255322 transitions. [2021-07-09 16:17:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:17:59,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2021-07-09 16:17:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:59,290 INFO L225 Difference]: With dead ends: 63188 [2021-07-09 16:17:59,290 INFO L226 Difference]: Without dead ends: 53153 [2021-07-09 16:17:59,290 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 131.0ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:17:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53153 states. [2021-07-09 16:18:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53153 to 45767. [2021-07-09 16:18:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45767 states, 45766 states have (on average 4.058362102871127) internal successors, (185735), 45766 states have internal predecessors, (185735), 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) [2021-07-09 16:18:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45767 states to 45767 states and 185735 transitions. [2021-07-09 16:18:00,848 INFO L78 Accepts]: Start accepts. Automaton has 45767 states and 185735 transitions. Word has length 75 [2021-07-09 16:18:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:00,848 INFO L482 AbstractCegarLoop]: Abstraction has 45767 states and 185735 transitions. [2021-07-09 16:18:00,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2021-07-09 16:18:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand 45767 states and 185735 transitions. [2021-07-09 16:18:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-09 16:18:01,209 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:01,209 INFO L508 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] [2021-07-09 16:18:01,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-09 16:18:01,210 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:01,210 INFO L82 PathProgramCache]: Analyzing trace with hash -606793233, now seen corresponding path program 2 times [2021-07-09 16:18:01,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:01,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112475859] [2021-07-09 16:18:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:01,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:01,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112475859] [2021-07-09 16:18:01,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112475859] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:01,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:01,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-09 16:18:01,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56954504] [2021-07-09 16:18:01,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 16:18:01,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:01,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 16:18:01,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:18:01,341 INFO L87 Difference]: Start difference. First operand 45767 states and 185735 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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) [2021-07-09 16:18:02,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:02,316 INFO L93 Difference]: Finished difference Result 51725 states and 208645 transitions. [2021-07-09 16:18:02,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 16:18:02,316 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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 75 [2021-07-09 16:18:02,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:02,570 INFO L225 Difference]: With dead ends: 51725 [2021-07-09 16:18:02,570 INFO L226 Difference]: Without dead ends: 45335 [2021-07-09 16:18:02,570 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 212.5ms TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2021-07-09 16:18:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45335 states. [2021-07-09 16:18:03,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45335 to 42692. [2021-07-09 16:18:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42692 states, 42691 states have (on average 4.06488487034738) internal successors, (173534), 42691 states have internal predecessors, (173534), 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) [2021-07-09 16:18:04,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42692 states to 42692 states and 173534 transitions. [2021-07-09 16:18:04,329 INFO L78 Accepts]: Start accepts. Automaton has 42692 states and 173534 transitions. Word has length 75 [2021-07-09 16:18:04,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:04,329 INFO L482 AbstractCegarLoop]: Abstraction has 42692 states and 173534 transitions. [2021-07-09 16:18:04,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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) [2021-07-09 16:18:04,329 INFO L276 IsEmpty]: Start isEmpty. Operand 42692 states and 173534 transitions. [2021-07-09 16:18:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 16:18:04,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:04,396 INFO L508 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] [2021-07-09 16:18:04,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-09 16:18:04,396 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:04,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1105775058, now seen corresponding path program 1 times [2021-07-09 16:18:04,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:04,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520575383] [2021-07-09 16:18:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:05,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:05,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520575383] [2021-07-09 16:18:05,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520575383] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:05,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:05,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:18:05,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705600148] [2021-07-09 16:18:05,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:18:05,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:05,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:18:05,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:18:05,152 INFO L87 Difference]: Start difference. First operand 42692 states and 173534 transitions. Second operand has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 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) [2021-07-09 16:18:05,736 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-07-09 16:18:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:08,206 INFO L93 Difference]: Finished difference Result 56509 states and 230317 transitions. [2021-07-09 16:18:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:18:08,207 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 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 77 [2021-07-09 16:18:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:08,671 INFO L225 Difference]: With dead ends: 56509 [2021-07-09 16:18:08,671 INFO L226 Difference]: Without dead ends: 55111 [2021-07-09 16:18:08,671 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2115.4ms TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2021-07-09 16:18:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55111 states. [2021-07-09 16:18:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55111 to 48038. [2021-07-09 16:18:09,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48038 states, 48037 states have (on average 4.131440348065033) internal successors, (198462), 48037 states have internal predecessors, (198462), 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) [2021-07-09 16:18:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48038 states to 48038 states and 198462 transitions. [2021-07-09 16:18:10,278 INFO L78 Accepts]: Start accepts. Automaton has 48038 states and 198462 transitions. Word has length 77 [2021-07-09 16:18:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:10,278 INFO L482 AbstractCegarLoop]: Abstraction has 48038 states and 198462 transitions. [2021-07-09 16:18:10,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 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) [2021-07-09 16:18:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 48038 states and 198462 transitions. [2021-07-09 16:18:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 16:18:10,361 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:10,362 INFO L508 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] [2021-07-09 16:18:10,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-09 16:18:10,366 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:10,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:10,367 INFO L82 PathProgramCache]: Analyzing trace with hash -106841762, now seen corresponding path program 2 times [2021-07-09 16:18:10,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:10,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11224057] [2021-07-09 16:18:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:11,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:11,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11224057] [2021-07-09 16:18:11,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11224057] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:11,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:11,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-07-09 16:18:11,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413008088] [2021-07-09 16:18:11,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-09 16:18:11,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:11,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-09 16:18:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-07-09 16:18:11,163 INFO L87 Difference]: Start difference. First operand 48038 states and 198462 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 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) [2021-07-09 16:18:13,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:13,376 INFO L93 Difference]: Finished difference Result 44303 states and 180392 transitions. [2021-07-09 16:18:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:18:13,377 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 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 77 [2021-07-09 16:18:13,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:13,536 INFO L225 Difference]: With dead ends: 44303 [2021-07-09 16:18:13,537 INFO L226 Difference]: Without dead ends: 43043 [2021-07-09 16:18:13,537 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1681.4ms TimeCoverageRelationStatistics Valid=237, Invalid=1569, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 16:18:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43043 states. [2021-07-09 16:18:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43043 to 33407. [2021-07-09 16:18:14,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33407 states, 33406 states have (on average 4.022061905046997) internal successors, (134361), 33406 states have internal predecessors, (134361), 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) [2021-07-09 16:18:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33407 states to 33407 states and 134361 transitions. [2021-07-09 16:18:14,628 INFO L78 Accepts]: Start accepts. Automaton has 33407 states and 134361 transitions. Word has length 77 [2021-07-09 16:18:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:14,629 INFO L482 AbstractCegarLoop]: Abstraction has 33407 states and 134361 transitions. [2021-07-09 16:18:14,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 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) [2021-07-09 16:18:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 33407 states and 134361 transitions. [2021-07-09 16:18:14,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-09 16:18:14,684 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:14,684 INFO L508 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] [2021-07-09 16:18:14,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-09 16:18:14,684 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:14,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:14,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1211061915, now seen corresponding path program 1 times [2021-07-09 16:18:14,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:14,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742368177] [2021-07-09 16:18:14,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:15,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:15,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742368177] [2021-07-09 16:18:15,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742368177] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:15,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:15,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:18:15,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516853059] [2021-07-09 16:18:15,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:18:15,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:15,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:18:15,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:18:15,960 INFO L87 Difference]: Start difference. First operand 33407 states and 134361 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 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) [2021-07-09 16:18:17,003 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2021-07-09 16:18:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:18,686 INFO L93 Difference]: Finished difference Result 29773 states and 118565 transitions. [2021-07-09 16:18:18,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:18:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 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 79 [2021-07-09 16:18:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:18,793 INFO L225 Difference]: With dead ends: 29773 [2021-07-09 16:18:18,794 INFO L226 Difference]: Without dead ends: 27685 [2021-07-09 16:18:18,794 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 2547.9ms TimeCoverageRelationStatistics Valid=264, Invalid=2286, Unknown=0, NotChecked=0, Total=2550 [2021-07-09 16:18:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27685 states. [2021-07-09 16:18:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27685 to 25523. [2021-07-09 16:18:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25523 states, 25522 states have (on average 3.9933390800094037) internal successors, (101918), 25522 states have internal predecessors, (101918), 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) [2021-07-09 16:18:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25523 states to 25523 states and 101918 transitions. [2021-07-09 16:18:19,631 INFO L78 Accepts]: Start accepts. Automaton has 25523 states and 101918 transitions. Word has length 79 [2021-07-09 16:18:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:19,632 INFO L482 AbstractCegarLoop]: Abstraction has 25523 states and 101918 transitions. [2021-07-09 16:18:19,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 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) [2021-07-09 16:18:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 25523 states and 101918 transitions. [2021-07-09 16:18:19,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-09 16:18:19,671 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:19,671 INFO L508 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] [2021-07-09 16:18:19,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 16:18:19,671 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:19,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:19,672 INFO L82 PathProgramCache]: Analyzing trace with hash 406473118, now seen corresponding path program 1 times [2021-07-09 16:18:19,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:19,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146423960] [2021-07-09 16:18:19,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:20,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:20,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:20,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146423960] [2021-07-09 16:18:20,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146423960] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:20,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:20,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:18:20,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312480456] [2021-07-09 16:18:20,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:18:20,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:20,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:18:20,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:18:20,502 INFO L87 Difference]: Start difference. First operand 25523 states and 101918 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 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) [2021-07-09 16:18:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:22,730 INFO L93 Difference]: Finished difference Result 34270 states and 136437 transitions. [2021-07-09 16:18:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:18:22,730 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 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 79 [2021-07-09 16:18:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:22,832 INFO L225 Difference]: With dead ends: 34270 [2021-07-09 16:18:22,832 INFO L226 Difference]: Without dead ends: 30232 [2021-07-09 16:18:22,833 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1642.7ms TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2021-07-09 16:18:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30232 states. [2021-07-09 16:18:23,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30232 to 26090. [2021-07-09 16:18:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26090 states, 26089 states have (on average 4.030625934301813) internal successors, (105155), 26089 states have internal predecessors, (105155), 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) [2021-07-09 16:18:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26090 states to 26090 states and 105155 transitions. [2021-07-09 16:18:23,558 INFO L78 Accepts]: Start accepts. Automaton has 26090 states and 105155 transitions. Word has length 79 [2021-07-09 16:18:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:23,558 INFO L482 AbstractCegarLoop]: Abstraction has 26090 states and 105155 transitions. [2021-07-09 16:18:23,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 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) [2021-07-09 16:18:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 26090 states and 105155 transitions. [2021-07-09 16:18:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-09 16:18:23,957 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:23,957 INFO L508 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] [2021-07-09 16:18:23,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 16:18:23,957 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:23,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:23,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1342799100, now seen corresponding path program 2 times [2021-07-09 16:18:23,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:23,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317544916] [2021-07-09 16:18:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:24,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:24,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317544916] [2021-07-09 16:18:24,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317544916] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:24,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:24,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-09 16:18:24,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606121753] [2021-07-09 16:18:24,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-09 16:18:24,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:24,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-09 16:18:24,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:18:24,838 INFO L87 Difference]: Start difference. First operand 26090 states and 105155 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 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) [2021-07-09 16:18:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:26,646 INFO L93 Difference]: Finished difference Result 25967 states and 103470 transitions. [2021-07-09 16:18:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:18:26,646 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 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 79 [2021-07-09 16:18:26,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:26,710 INFO L225 Difference]: With dead ends: 25967 [2021-07-09 16:18:26,710 INFO L226 Difference]: Without dead ends: 21515 [2021-07-09 16:18:26,710 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1418.0ms TimeCoverageRelationStatistics Valid=229, Invalid=1663, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:18:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21515 states. [2021-07-09 16:18:27,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21515 to 17789. [2021-07-09 16:18:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17789 states, 17788 states have (on average 3.902912075556555) internal successors, (69425), 17788 states have internal predecessors, (69425), 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) [2021-07-09 16:18:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 69425 transitions. [2021-07-09 16:18:27,246 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 69425 transitions. Word has length 79 [2021-07-09 16:18:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:27,247 INFO L482 AbstractCegarLoop]: Abstraction has 17789 states and 69425 transitions. [2021-07-09 16:18:27,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 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) [2021-07-09 16:18:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 69425 transitions. [2021-07-09 16:18:27,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:27,277 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:27,277 INFO L508 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] [2021-07-09 16:18:27,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 16:18:27,277 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash 604863419, now seen corresponding path program 1 times [2021-07-09 16:18:27,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:27,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129479409] [2021-07-09 16:18:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:27,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:27,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:27,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129479409] [2021-07-09 16:18:27,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129479409] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:27,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:27,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:18:27,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716331128] [2021-07-09 16:18:27,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:18:27,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:27,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:18:27,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:18:27,502 INFO L87 Difference]: Start difference. First operand 17789 states and 69425 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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) [2021-07-09 16:18:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:28,059 INFO L93 Difference]: Finished difference Result 19726 states and 75766 transitions. [2021-07-09 16:18:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 16:18:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:28,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:28,112 INFO L225 Difference]: With dead ends: 19726 [2021-07-09 16:18:28,113 INFO L226 Difference]: Without dead ends: 17781 [2021-07-09 16:18:28,113 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 262.4ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-09 16:18:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-07-09 16:18:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-07-09 16:18:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9037682789651296) internal successors, (69409), 17780 states have internal predecessors, (69409), 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) [2021-07-09 16:18:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69409 transitions. [2021-07-09 16:18:28,495 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69409 transitions. Word has length 80 [2021-07-09 16:18:28,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:28,495 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69409 transitions. [2021-07-09 16:18:28,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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) [2021-07-09 16:18:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69409 transitions. [2021-07-09 16:18:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:28,750 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:28,750 INFO L508 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] [2021-07-09 16:18:28,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-09 16:18:28,751 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:28,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1146691449, now seen corresponding path program 2 times [2021-07-09 16:18:28,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:28,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696441737] [2021-07-09 16:18:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:29,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:29,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696441737] [2021-07-09 16:18:29,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696441737] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:29,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:29,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:18:29,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085607644] [2021-07-09 16:18:29,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:18:29,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:29,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:18:29,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:18:29,031 INFO L87 Difference]: Start difference. First operand 17781 states and 69409 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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) [2021-07-09 16:18:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:29,630 INFO L93 Difference]: Finished difference Result 19689 states and 75705 transitions. [2021-07-09 16:18:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:18:29,631 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:29,688 INFO L225 Difference]: With dead ends: 19689 [2021-07-09 16:18:29,688 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:29,688 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 447.6ms TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:18:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:30,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.905977128049124) internal successors, (69335), 17751 states have internal predecessors, (69335), 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) [2021-07-09 16:18:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69335 transitions. [2021-07-09 16:18:30,221 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69335 transitions. Word has length 80 [2021-07-09 16:18:30,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:30,221 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69335 transitions. [2021-07-09 16:18:30,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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) [2021-07-09 16:18:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69335 transitions. [2021-07-09 16:18:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:30,248 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:30,248 INFO L508 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] [2021-07-09 16:18:30,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-09 16:18:30,249 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:30,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1422906705, now seen corresponding path program 3 times [2021-07-09 16:18:30,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:30,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139446804] [2021-07-09 16:18:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:30,779 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2021-07-09 16:18:30,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:30,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:30,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139446804] [2021-07-09 16:18:30,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139446804] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:30,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:30,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:18:30,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355257603] [2021-07-09 16:18:30,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:18:30,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:30,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:18:30,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:18:30,964 INFO L87 Difference]: Start difference. First operand 17752 states and 69335 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:32,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:32,224 INFO L93 Difference]: Finished difference Result 19659 states and 75630 transitions. [2021-07-09 16:18:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:18:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:32,277 INFO L225 Difference]: With dead ends: 19659 [2021-07-09 16:18:32,278 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:32,278 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1031.4ms TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:18:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.905808123486001) internal successors, (69332), 17751 states have internal predecessors, (69332), 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) [2021-07-09 16:18:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69332 transitions. [2021-07-09 16:18:32,652 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69332 transitions. Word has length 80 [2021-07-09 16:18:32,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:32,652 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69332 transitions. [2021-07-09 16:18:32,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69332 transitions. [2021-07-09 16:18:32,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:32,680 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:32,680 INFO L508 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] [2021-07-09 16:18:32,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-09 16:18:32,680 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:32,680 INFO L82 PathProgramCache]: Analyzing trace with hash -268089029, now seen corresponding path program 4 times [2021-07-09 16:18:32,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:32,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043168805] [2021-07-09 16:18:32,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:32,985 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-07-09 16:18:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:33,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:33,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043168805] [2021-07-09 16:18:33,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043168805] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:33,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:33,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:18:33,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134089564] [2021-07-09 16:18:33,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:18:33,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:33,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:18:33,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:18:33,400 INFO L87 Difference]: Start difference. First operand 17752 states and 69332 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:34,612 INFO L93 Difference]: Finished difference Result 19653 states and 75617 transitions. [2021-07-09 16:18:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:18:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:34,663 INFO L225 Difference]: With dead ends: 19653 [2021-07-09 16:18:34,663 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:34,663 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1163.3ms TimeCoverageRelationStatistics Valid=159, Invalid=1173, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:18:34,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9054701143597543) internal successors, (69326), 17751 states have internal predecessors, (69326), 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) [2021-07-09 16:18:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69326 transitions. [2021-07-09 16:18:35,030 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69326 transitions. Word has length 80 [2021-07-09 16:18:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:35,030 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69326 transitions. [2021-07-09 16:18:35,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69326 transitions. [2021-07-09 16:18:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:35,057 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:35,057 INFO L508 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] [2021-07-09 16:18:35,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-09 16:18:35,058 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:35,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:35,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1802336639, now seen corresponding path program 5 times [2021-07-09 16:18:35,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:35,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661364013] [2021-07-09 16:18:35,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:35,253 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-07-09 16:18:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:35,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:35,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661364013] [2021-07-09 16:18:35,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661364013] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:35,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:35,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:18:35,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757696065] [2021-07-09 16:18:35,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:18:35,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:35,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:18:35,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:18:35,693 INFO L87 Difference]: Start difference. First operand 17752 states and 69326 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:36,918 INFO L93 Difference]: Finished difference Result 19638 states and 75584 transitions. [2021-07-09 16:18:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:18:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:36,971 INFO L225 Difference]: With dead ends: 19638 [2021-07-09 16:18:36,971 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:36,972 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1121.2ms TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:18:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9053574446510058) internal successors, (69324), 17751 states have internal predecessors, (69324), 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) [2021-07-09 16:18:37,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69324 transitions. [2021-07-09 16:18:37,348 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69324 transitions. Word has length 80 [2021-07-09 16:18:37,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:37,348 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69324 transitions. [2021-07-09 16:18:37,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:37,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69324 transitions. [2021-07-09 16:18:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:37,375 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:37,375 INFO L508 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] [2021-07-09 16:18:37,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-09 16:18:37,375 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:37,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:37,375 INFO L82 PathProgramCache]: Analyzing trace with hash 210872567, now seen corresponding path program 6 times [2021-07-09 16:18:37,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:37,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890358224] [2021-07-09 16:18:37,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:37,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:37,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890358224] [2021-07-09 16:18:37,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890358224] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:37,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:37,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:18:37,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879261529] [2021-07-09 16:18:37,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:18:37,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:37,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:18:37,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:18:37,881 INFO L87 Difference]: Start difference. First operand 17752 states and 69324 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:38,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:38,729 INFO L93 Difference]: Finished difference Result 19633 states and 75573 transitions. [2021-07-09 16:18:38,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:18:38,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:38,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:38,960 INFO L225 Difference]: With dead ends: 19633 [2021-07-09 16:18:38,961 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:38,961 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 677.3ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:18:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9043434172722664) internal successors, (69306), 17751 states have internal predecessors, (69306), 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) [2021-07-09 16:18:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69306 transitions. [2021-07-09 16:18:39,310 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69306 transitions. Word has length 80 [2021-07-09 16:18:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:39,310 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69306 transitions. [2021-07-09 16:18:39,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 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) [2021-07-09 16:18:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69306 transitions. [2021-07-09 16:18:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:39,337 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:39,337 INFO L508 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] [2021-07-09 16:18:39,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-09 16:18:39,337 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:39,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:39,337 INFO L82 PathProgramCache]: Analyzing trace with hash 379667429, now seen corresponding path program 7 times [2021-07-09 16:18:39,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:39,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010939074] [2021-07-09 16:18:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:39,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:39,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010939074] [2021-07-09 16:18:39,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010939074] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:39,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:39,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:18:39,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416652755] [2021-07-09 16:18:39,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:18:39,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:39,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:18:39,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:18:39,939 INFO L87 Difference]: Start difference. First operand 17752 states and 69306 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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) [2021-07-09 16:18:40,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:40,983 INFO L93 Difference]: Finished difference Result 19620 states and 75546 transitions. [2021-07-09 16:18:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:18:40,983 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:41,198 INFO L225 Difference]: With dead ends: 19620 [2021-07-09 16:18:41,198 INFO L226 Difference]: Without dead ends: 17784 [2021-07-09 16:18:41,199 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1026.5ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:18:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17784 states. [2021-07-09 16:18:41,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17784 to 17752. [2021-07-09 16:18:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9025407019322853) internal successors, (69274), 17751 states have internal predecessors, (69274), 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) [2021-07-09 16:18:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69274 transitions. [2021-07-09 16:18:41,551 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69274 transitions. Word has length 80 [2021-07-09 16:18:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:41,551 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69274 transitions. [2021-07-09 16:18:41,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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) [2021-07-09 16:18:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69274 transitions. [2021-07-09 16:18:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:41,577 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:41,577 INFO L508 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] [2021-07-09 16:18:41,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-09 16:18:41,577 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:41,578 INFO L82 PathProgramCache]: Analyzing trace with hash 877408505, now seen corresponding path program 8 times [2021-07-09 16:18:41,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:41,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260067225] [2021-07-09 16:18:41,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:42,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:42,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260067225] [2021-07-09 16:18:42,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260067225] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:42,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:42,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:18:42,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432379312] [2021-07-09 16:18:42,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:18:42,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:42,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:18:42,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:18:42,158 INFO L87 Difference]: Start difference. First operand 17752 states and 69274 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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) [2021-07-09 16:18:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:43,315 INFO L93 Difference]: Finished difference Result 19472 states and 75100 transitions. [2021-07-09 16:18:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:18:43,316 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:43,369 INFO L225 Difference]: With dead ends: 19472 [2021-07-09 16:18:43,369 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:43,370 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 960.1ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:18:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:43,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.901639344262295) internal successors, (69258), 17751 states have internal predecessors, (69258), 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) [2021-07-09 16:18:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69258 transitions. [2021-07-09 16:18:43,737 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69258 transitions. Word has length 80 [2021-07-09 16:18:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:43,737 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69258 transitions. [2021-07-09 16:18:43,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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) [2021-07-09 16:18:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69258 transitions. [2021-07-09 16:18:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:43,765 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:43,765 INFO L508 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] [2021-07-09 16:18:43,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-09 16:18:43,765 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:43,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:43,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1272369107, now seen corresponding path program 9 times [2021-07-09 16:18:43,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:43,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129298197] [2021-07-09 16:18:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:44,085 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-07-09 16:18:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:44,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:44,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129298197] [2021-07-09 16:18:44,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129298197] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:44,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:44,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:18:44,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924665959] [2021-07-09 16:18:44,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:18:44,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:44,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:18:44,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:18:44,437 INFO L87 Difference]: Start difference. First operand 17752 states and 69258 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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) [2021-07-09 16:18:45,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:45,518 INFO L93 Difference]: Finished difference Result 19376 states and 74808 transitions. [2021-07-09 16:18:45,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:18:45,519 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:45,570 INFO L225 Difference]: With dead ends: 19376 [2021-07-09 16:18:45,571 INFO L226 Difference]: Without dead ends: 17752 [2021-07-09 16:18:45,571 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1055.1ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:18:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-09 16:18:45,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-09 16:18:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.898033913582333) internal successors, (69194), 17751 states have internal predecessors, (69194), 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) [2021-07-09 16:18:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69194 transitions. [2021-07-09 16:18:45,952 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69194 transitions. Word has length 80 [2021-07-09 16:18:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:45,952 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69194 transitions. [2021-07-09 16:18:45,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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) [2021-07-09 16:18:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69194 transitions. [2021-07-09 16:18:45,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:45,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:45,979 INFO L508 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] [2021-07-09 16:18:45,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-09 16:18:45,979 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:45,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:45,980 INFO L82 PathProgramCache]: Analyzing trace with hash 154953031, now seen corresponding path program 10 times [2021-07-09 16:18:45,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:45,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942200649] [2021-07-09 16:18:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:46,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:46,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942200649] [2021-07-09 16:18:46,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942200649] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:46,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:46,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:18:46,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487139687] [2021-07-09 16:18:46,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:18:46,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:46,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:18:46,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:18:46,862 INFO L87 Difference]: Start difference. First operand 17752 states and 69194 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 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) [2021-07-09 16:18:48,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:48,360 INFO L93 Difference]: Finished difference Result 19312 states and 74472 transitions. [2021-07-09 16:18:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:18:48,360 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:48,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:48,396 INFO L225 Difference]: With dead ends: 19312 [2021-07-09 16:18:48,396 INFO L226 Difference]: Without dead ends: 12880 [2021-07-09 16:18:48,397 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1519.6ms TimeCoverageRelationStatistics Valid=240, Invalid=1922, Unknown=0, NotChecked=0, Total=2162 [2021-07-09 16:18:48,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12880 states. [2021-07-09 16:18:48,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12880 to 12880. [2021-07-09 16:18:48,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12880 states, 12879 states have (on average 3.699044956906592) internal successors, (47640), 12879 states have internal predecessors, (47640), 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) [2021-07-09 16:18:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12880 states to 12880 states and 47640 transitions. [2021-07-09 16:18:48,654 INFO L78 Accepts]: Start accepts. Automaton has 12880 states and 47640 transitions. Word has length 80 [2021-07-09 16:18:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:48,654 INFO L482 AbstractCegarLoop]: Abstraction has 12880 states and 47640 transitions. [2021-07-09 16:18:48,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 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) [2021-07-09 16:18:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 12880 states and 47640 transitions. [2021-07-09 16:18:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:48,669 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:48,669 INFO L508 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] [2021-07-09 16:18:48,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-09 16:18:48,669 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:48,670 INFO L82 PathProgramCache]: Analyzing trace with hash -11684839, now seen corresponding path program 11 times [2021-07-09 16:18:48,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:48,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609970425] [2021-07-09 16:18:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:49,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:49,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:49,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609970425] [2021-07-09 16:18:49,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609970425] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:49,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:49,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:18:49,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365634115] [2021-07-09 16:18:49,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:18:49,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:49,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:18:49,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:18:49,453 INFO L87 Difference]: Start difference. First operand 12880 states and 47640 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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) [2021-07-09 16:18:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:50,577 INFO L93 Difference]: Finished difference Result 14536 states and 53282 transitions. [2021-07-09 16:18:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:18:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:50,611 INFO L225 Difference]: With dead ends: 14536 [2021-07-09 16:18:50,611 INFO L226 Difference]: Without dead ends: 12880 [2021-07-09 16:18:50,611 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1109.2ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:18:50,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12880 states. [2021-07-09 16:18:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12880 to 12880. [2021-07-09 16:18:50,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12880 states, 12879 states have (on average 3.6984237906669772) internal successors, (47632), 12879 states have internal predecessors, (47632), 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) [2021-07-09 16:18:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12880 states to 12880 states and 47632 transitions. [2021-07-09 16:18:50,854 INFO L78 Accepts]: Start accepts. Automaton has 12880 states and 47632 transitions. Word has length 80 [2021-07-09 16:18:50,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:50,854 INFO L482 AbstractCegarLoop]: Abstraction has 12880 states and 47632 transitions. [2021-07-09 16:18:50,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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) [2021-07-09 16:18:50,854 INFO L276 IsEmpty]: Start isEmpty. Operand 12880 states and 47632 transitions. [2021-07-09 16:18:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:18:50,869 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:50,869 INFO L508 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] [2021-07-09 16:18:50,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-09 16:18:50,869 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:50,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:50,869 INFO L82 PathProgramCache]: Analyzing trace with hash -21546859, now seen corresponding path program 12 times [2021-07-09 16:18:50,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:50,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065276712] [2021-07-09 16:18:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:51,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:51,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065276712] [2021-07-09 16:18:51,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065276712] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:51,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:51,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:18:51,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579279272] [2021-07-09 16:18:51,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:18:51,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:51,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:18:51,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:18:51,138 INFO L87 Difference]: Start difference. First operand 12880 states and 47632 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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) [2021-07-09 16:18:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:51,749 INFO L93 Difference]: Finished difference Result 11664 states and 41710 transitions. [2021-07-09 16:18:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:18:51,749 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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 80 [2021-07-09 16:18:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:51,773 INFO L225 Difference]: With dead ends: 11664 [2021-07-09 16:18:51,774 INFO L226 Difference]: Without dead ends: 9756 [2021-07-09 16:18:51,774 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 429.8ms TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:18:51,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9756 states. [2021-07-09 16:18:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9756 to 9756. [2021-07-09 16:18:51,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 9755 states have (on average 3.6302409021014865) internal successors, (35413), 9755 states have internal predecessors, (35413), 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) [2021-07-09 16:18:51,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 35413 transitions. [2021-07-09 16:18:51,942 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 35413 transitions. Word has length 80 [2021-07-09 16:18:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:51,942 INFO L482 AbstractCegarLoop]: Abstraction has 9756 states and 35413 transitions. [2021-07-09 16:18:51,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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) [2021-07-09 16:18:51,942 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 35413 transitions. [2021-07-09 16:18:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-09 16:18:51,956 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:51,956 INFO L508 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] [2021-07-09 16:18:51,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-09 16:18:51,956 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:51,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:51,956 INFO L82 PathProgramCache]: Analyzing trace with hash 881606360, now seen corresponding path program 1 times [2021-07-09 16:18:51,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:51,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405487013] [2021-07-09 16:18:51,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:52,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:52,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:52,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405487013] [2021-07-09 16:18:52,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405487013] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:52,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:52,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:18:52,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916965890] [2021-07-09 16:18:52,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:18:52,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:52,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:18:52,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:18:52,336 INFO L87 Difference]: Start difference. First operand 9756 states and 35413 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 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) [2021-07-09 16:18:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:52,998 INFO L93 Difference]: Finished difference Result 11478 states and 41516 transitions. [2021-07-09 16:18:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:18:52,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 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 82 [2021-07-09 16:18:52,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:53,023 INFO L225 Difference]: With dead ends: 11478 [2021-07-09 16:18:53,024 INFO L226 Difference]: Without dead ends: 10686 [2021-07-09 16:18:53,024 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 600.2ms TimeCoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:18:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2021-07-09 16:18:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 9798. [2021-07-09 16:18:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 9797 states have (on average 3.6236603041747473) internal successors, (35501), 9797 states have internal predecessors, (35501), 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) [2021-07-09 16:18:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 35501 transitions. [2021-07-09 16:18:53,201 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 35501 transitions. Word has length 82 [2021-07-09 16:18:53,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:53,201 INFO L482 AbstractCegarLoop]: Abstraction has 9798 states and 35501 transitions. [2021-07-09 16:18:53,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 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) [2021-07-09 16:18:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 35501 transitions. [2021-07-09 16:18:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-09 16:18:53,214 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:53,214 INFO L508 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] [2021-07-09 16:18:53,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-09 16:18:53,214 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:53,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1198512482, now seen corresponding path program 1 times [2021-07-09 16:18:53,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:53,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364177659] [2021-07-09 16:18:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:53,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:53,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364177659] [2021-07-09 16:18:53,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364177659] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:53,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:53,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:18:53,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397837708] [2021-07-09 16:18:53,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:18:53,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:53,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:18:53,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:18:53,589 INFO L87 Difference]: Start difference. First operand 9798 states and 35501 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 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) [2021-07-09 16:18:54,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:54,197 INFO L93 Difference]: Finished difference Result 10512 states and 37844 transitions. [2021-07-09 16:18:54,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:18:54,197 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 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 82 [2021-07-09 16:18:54,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:54,220 INFO L225 Difference]: With dead ends: 10512 [2021-07-09 16:18:54,220 INFO L226 Difference]: Without dead ends: 9744 [2021-07-09 16:18:54,220 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 601.7ms TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:18:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-07-09 16:18:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-07-09 16:18:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9743 states have (on average 3.631427691676075) internal successors, (35381), 9743 states have internal predecessors, (35381), 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) [2021-07-09 16:18:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 35381 transitions. [2021-07-09 16:18:54,387 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 35381 transitions. Word has length 82 [2021-07-09 16:18:54,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:54,387 INFO L482 AbstractCegarLoop]: Abstraction has 9744 states and 35381 transitions. [2021-07-09 16:18:54,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 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) [2021-07-09 16:18:54,387 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 35381 transitions. [2021-07-09 16:18:54,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-09 16:18:54,400 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:54,400 INFO L508 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] [2021-07-09 16:18:54,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-09 16:18:54,400 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:54,400 INFO L82 PathProgramCache]: Analyzing trace with hash -44603372, now seen corresponding path program 2 times [2021-07-09 16:18:54,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:54,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852415925] [2021-07-09 16:18:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:54,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:54,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852415925] [2021-07-09 16:18:54,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852415925] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:54,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:54,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:18:54,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854989291] [2021-07-09 16:18:54,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:18:54,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:54,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:18:54,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:18:54,784 INFO L87 Difference]: Start difference. First operand 9744 states and 35381 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 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)