/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/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:52:52,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:52:52,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:52:52,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:52:52,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:52:52,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:52:52,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:52:52,990 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 16:52:53,008 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:52:53,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:52:53,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:52:53,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:52:53,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:52:53,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:52:53,011 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:52:53,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:52:53,011 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:52:53,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:52:53,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:52:53,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:52:53,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:52:53,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:52:53,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:52:53,012 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:52:53,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:52:53,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:52:53,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:52:53,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:52:53,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:52:53,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:52:53,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:52:53,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:52:53,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:52:53,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:52:53,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:52:53,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:52:53,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:52:53,014 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:52:53,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:52:53,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:52:53,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:52:53,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:52:53,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:52:53,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:52:53,418 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:52:53,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-07-09 16:52:53,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0bd15e05/51b6f115cc7347cb9acd6277e87c15b3/FLAGe0a072e3f [2021-07-09 16:52:54,004 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:52:54,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-07-09 16:52:54,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0bd15e05/51b6f115cc7347cb9acd6277e87c15b3/FLAGe0a072e3f [2021-07-09 16:52:54,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0bd15e05/51b6f115cc7347cb9acd6277e87c15b3 [2021-07-09 16:52:54,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:52:54,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:52:54,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:52:54,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:52:54,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:52:54,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:52:54" (1/1) ... [2021-07-09 16:52:54,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a43ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:54, skipping insertion in model container [2021-07-09 16:52:54,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:52:54" (1/1) ... [2021-07-09 16:52:54,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:52:54,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:52:55,160 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-07-09 16:52:55,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:52:55,188 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:52:55,221 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-07-09 16:52:55,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:52:55,316 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:52:55,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55 WrapperNode [2021-07-09 16:52:55,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:52:55,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:52:55,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:52:55,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:52:55,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:52:55,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:52:55,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:52:55,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:52:55,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (1/1) ... [2021-07-09 16:52:55,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:52:55,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:52:55,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:52:55,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:52:55,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (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 16:52:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:52:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:52:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-09 16:52:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-09 16:52:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:52:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:52:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-09 16:52:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-09 16:52:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:52:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:52:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:52:55,516 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 16:52:55,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:52:55,947 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-09 16:52:55,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:52:55 BoogieIcfgContainer [2021-07-09 16:52:55,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:52:55,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:52:55,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:52:55,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:52:55,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:52:54" (1/3) ... [2021-07-09 16:52:55,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286eeca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:52:55, skipping insertion in model container [2021-07-09 16:52:55,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:52:55" (2/3) ... [2021-07-09 16:52:55,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286eeca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:52:55, skipping insertion in model container [2021-07-09 16:52:55,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:52:55" (3/3) ... [2021-07-09 16:52:55,953 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-07-09 16:52:55,956 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:52:55,956 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:52:55,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-09 16:52:55,957 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:52:55,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,990 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,990 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,990 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,990 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,991 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,992 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,993 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,996 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,996 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,996 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,996 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,996 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:55,997 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:52:56,004 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-09 16:52:56,018 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-09 16:52:56,030 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:52:56,030 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:52:56,030 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:52:56,030 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:52:56,031 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:52:56,031 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:52:56,031 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:52:56,031 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:52:56,039 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 171 transitions, 364 flow [2021-07-09 16:52:56,254 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9349 states, 9339 states have (on average 2.8488060820216297) internal successors, (26605), 9348 states have internal predecessors, (26605), 0 states have call successors, (0), 0 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 16:52:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 9349 states, 9339 states have (on average 2.8488060820216297) internal successors, (26605), 9348 states have internal predecessors, (26605), 0 states have call successors, (0), 0 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 16:52:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-09 16:52:56,298 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:52:56,298 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] [2021-07-09 16:52:56,298 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:52:56,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:52:56,305 INFO L82 PathProgramCache]: Analyzing trace with hash 4312800, now seen corresponding path program 1 times [2021-07-09 16:52:56,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:52:56,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112300326] [2021-07-09 16:52:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:52:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:52:56,731 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 16:52:56,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:52:56,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112300326] [2021-07-09 16:52:56,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112300326] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:52:56,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:52:56,733 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:52:56,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66794007] [2021-07-09 16:52:56,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:52:56,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:52:56,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:52:56,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:52:56,791 INFO L87 Difference]: Start difference. First operand has 9349 states, 9339 states have (on average 2.8488060820216297) internal successors, (26605), 9348 states have internal predecessors, (26605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 16:52:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:52:57,117 INFO L93 Difference]: Finished difference Result 8893 states and 24854 transitions. [2021-07-09 16:52:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:52:57,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-07-09 16:52:57,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:52:57,154 INFO L225 Difference]: With dead ends: 8893 [2021-07-09 16:52:57,154 INFO L226 Difference]: Without dead ends: 7312 [2021-07-09 16:52:57,155 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 93.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:52:57,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-07-09 16:52:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7311. [2021-07-09 16:52:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7304 states have (on average 2.7836801752464404) internal successors, (20332), 7310 states have internal predecessors, (20332), 0 states have call successors, (0), 0 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 16:52:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 20332 transitions. [2021-07-09 16:52:57,611 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 20332 transitions. Word has length 36 [2021-07-09 16:52:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:52:57,611 INFO L482 AbstractCegarLoop]: Abstraction has 7311 states and 20332 transitions. [2021-07-09 16:52:57,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 16:52:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 20332 transitions. [2021-07-09 16:52:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-09 16:52:57,612 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:52:57,612 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] [2021-07-09 16:52:57,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:52:57,613 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:52:57,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:52:57,614 INFO L82 PathProgramCache]: Analyzing trace with hash -334882016, now seen corresponding path program 1 times [2021-07-09 16:52:57,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:52:57,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238407610] [2021-07-09 16:52:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:52:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:52:57,706 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 16:52:57,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:52:57,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238407610] [2021-07-09 16:52:57,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238407610] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:52:57,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:52:57,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:52:57,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642635093] [2021-07-09 16:52:57,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:52:57,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:52:57,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:52:57,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:52:57,717 INFO L87 Difference]: Start difference. First operand 7311 states and 20332 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 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 16:52:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:52:57,933 INFO L93 Difference]: Finished difference Result 7313 states and 20334 transitions. [2021-07-09 16:52:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:52:57,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-07-09 16:52:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:52:57,964 INFO L225 Difference]: With dead ends: 7313 [2021-07-09 16:52:57,964 INFO L226 Difference]: Without dead ends: 7313 [2021-07-09 16:52:57,965 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 59.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:52:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-07-09 16:52:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7309. [2021-07-09 16:52:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7303 states have (on average 2.7837874845953716) internal successors, (20330), 7308 states have internal predecessors, (20330), 0 states have call successors, (0), 0 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 16:52:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 20330 transitions. [2021-07-09 16:52:58,186 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 20330 transitions. Word has length 42 [2021-07-09 16:52:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:52:58,187 INFO L482 AbstractCegarLoop]: Abstraction has 7309 states and 20330 transitions. [2021-07-09 16:52:58,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 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 16:52:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 20330 transitions. [2021-07-09 16:52:58,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:52:58,191 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:52:58,191 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] [2021-07-09 16:52:58,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:52:58,192 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:52:58,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:52:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1888111070, now seen corresponding path program 1 times [2021-07-09 16:52:58,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:52:58,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649401039] [2021-07-09 16:52:58,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:52:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:52:58,362 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 16:52:58,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:52:58,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649401039] [2021-07-09 16:52:58,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649401039] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:52:58,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:52:58,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:52:58,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411922956] [2021-07-09 16:52:58,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:52:58,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:52:58,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:52:58,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:52:58,365 INFO L87 Difference]: Start difference. First operand 7309 states and 20330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 16:52:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:52:58,691 INFO L93 Difference]: Finished difference Result 10560 states and 29296 transitions. [2021-07-09 16:52:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:52:58,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-07-09 16:52:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:52:58,739 INFO L225 Difference]: With dead ends: 10560 [2021-07-09 16:52:58,739 INFO L226 Difference]: Without dead ends: 10560 [2021-07-09 16:52:58,740 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 85.1ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:52:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-07-09 16:52:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 8145. [2021-07-09 16:52:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8140 states have (on average 2.784029484029484) internal successors, (22662), 8144 states have internal predecessors, (22662), 0 states have call successors, (0), 0 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 16:52:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 22662 transitions. [2021-07-09 16:52:59,076 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 22662 transitions. Word has length 60 [2021-07-09 16:52:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:52:59,078 INFO L482 AbstractCegarLoop]: Abstraction has 8145 states and 22662 transitions. [2021-07-09 16:52:59,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 16:52:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 22662 transitions. [2021-07-09 16:52:59,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:52:59,085 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:52:59,085 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 16:52:59,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:52:59,085 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:52:59,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:52:59,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1332255701, now seen corresponding path program 1 times [2021-07-09 16:52:59,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:52:59,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229314321] [2021-07-09 16:52:59,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:52:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:52:59,162 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 16:52:59,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:52:59,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229314321] [2021-07-09 16:52:59,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229314321] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:52:59,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:52:59,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:52:59,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113611955] [2021-07-09 16:52:59,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:52:59,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:52:59,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:52:59,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:52:59,164 INFO L87 Difference]: Start difference. First operand 8145 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 16:52:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:52:59,511 INFO L93 Difference]: Finished difference Result 11396 states and 31467 transitions. [2021-07-09 16:52:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:52:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 16:52:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:52:59,546 INFO L225 Difference]: With dead ends: 11396 [2021-07-09 16:52:59,546 INFO L226 Difference]: Without dead ends: 9607 [2021-07-09 16:52:59,547 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 63.6ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:52:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-07-09 16:52:59,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9285. [2021-07-09 16:52:59,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 9281 states have (on average 2.7852602090291994) internal successors, (25850), 9284 states have internal predecessors, (25850), 0 states have call successors, (0), 0 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 16:52:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 25850 transitions. [2021-07-09 16:52:59,842 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 25850 transitions. Word has length 66 [2021-07-09 16:52:59,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:52:59,842 INFO L482 AbstractCegarLoop]: Abstraction has 9285 states and 25850 transitions. [2021-07-09 16:52:59,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 16:52:59,842 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 25850 transitions. [2021-07-09 16:52:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:52:59,850 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:52:59,850 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 16:52:59,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:52:59,850 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:52:59,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:52:59,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1838606577, now seen corresponding path program 1 times [2021-07-09 16:52:59,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:52:59,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839941465] [2021-07-09 16:52:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:52:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:52:59,911 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 16:52:59,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:52:59,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839941465] [2021-07-09 16:52:59,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839941465] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:52:59,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:52:59,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:52:59,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557419198] [2021-07-09 16:52:59,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:52:59,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:52:59,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:52:59,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:52:59,913 INFO L87 Difference]: Start difference. First operand 9285 states and 25850 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 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 16:52:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:52:59,954 INFO L93 Difference]: Finished difference Result 3460 states and 9340 transitions. [2021-07-09 16:52:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 16:52:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 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 16:52:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:52:59,962 INFO L225 Difference]: With dead ends: 3460 [2021-07-09 16:52:59,962 INFO L226 Difference]: Without dead ends: 3460 [2021-07-09 16:52:59,962 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:52:59,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2021-07-09 16:53:00,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2021-07-09 16:53:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.700983227299017) internal successors, (9340), 3459 states have internal predecessors, (9340), 0 states have call successors, (0), 0 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 16:53:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9340 transitions. [2021-07-09 16:53:00,035 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9340 transitions. Word has length 80 [2021-07-09 16:53:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:00,036 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9340 transitions. [2021-07-09 16:53:00,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 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 16:53:00,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9340 transitions. [2021-07-09 16:53:00,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:00,129 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:00,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:00,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:53:00,130 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:00,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:00,130 INFO L82 PathProgramCache]: Analyzing trace with hash 762776300, now seen corresponding path program 1 times [2021-07-09 16:53:00,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:00,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535975858] [2021-07-09 16:53:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:00,940 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 16:53:00,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:00,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535975858] [2021-07-09 16:53:00,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535975858] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:00,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:00,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:00,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210921176] [2021-07-09 16:53:00,941 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:00,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:00,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:00,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:00,942 INFO L87 Difference]: Start difference. First operand 3460 states and 9340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:01,454 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-07-09 16:53:01,882 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:53:02,089 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:02,320 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:02,473 INFO L93 Difference]: Finished difference Result 4246 states and 11446 transitions. [2021-07-09 16:53:02,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:02,474 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:02,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:02,482 INFO L225 Difference]: With dead ends: 4246 [2021-07-09 16:53:02,482 INFO L226 Difference]: Without dead ends: 4246 [2021-07-09 16:53:02,482 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1451.7ms TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-07-09 16:53:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3964. [2021-07-09 16:53:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3962 states have (on average 2.708732963149924) internal successors, (10732), 3963 states have internal predecessors, (10732), 0 states have call successors, (0), 0 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 16:53:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 10732 transitions. [2021-07-09 16:53:02,627 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 10732 transitions. Word has length 114 [2021-07-09 16:53:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:02,641 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 10732 transitions. [2021-07-09 16:53:02,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:02,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 10732 transitions. [2021-07-09 16:53:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:02,667 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:02,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:02,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:53:02,668 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:02,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:02,668 INFO L82 PathProgramCache]: Analyzing trace with hash -977159444, now seen corresponding path program 2 times [2021-07-09 16:53:02,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:02,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734214958] [2021-07-09 16:53:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:03,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:03,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734214958] [2021-07-09 16:53:03,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734214958] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:03,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:03,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:03,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712064122] [2021-07-09 16:53:03,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:03,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:03,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:03,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:03,356 INFO L87 Difference]: Start difference. First operand 3964 states and 10732 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:04,203 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-07-09 16:53:04,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:04,642 INFO L93 Difference]: Finished difference Result 4833 states and 12790 transitions. [2021-07-09 16:53:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:04,653 INFO L225 Difference]: With dead ends: 4833 [2021-07-09 16:53:04,653 INFO L226 Difference]: Without dead ends: 4833 [2021-07-09 16:53:04,654 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1093.4ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:04,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-07-09 16:53:04,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4524. [2021-07-09 16:53:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 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 16:53:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-07-09 16:53:04,773 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-07-09 16:53:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:04,774 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-07-09 16:53:04,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-07-09 16:53:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:04,782 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:04,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:04,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:53:04,783 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:04,783 INFO L82 PathProgramCache]: Analyzing trace with hash -2033955812, now seen corresponding path program 3 times [2021-07-09 16:53:04,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:04,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643801930] [2021-07-09 16:53:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:05,297 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 16:53:05,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:05,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643801930] [2021-07-09 16:53:05,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643801930] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:05,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:05,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:05,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706091128] [2021-07-09 16:53:05,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:05,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:05,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:05,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:05,299 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:06,522 INFO L93 Difference]: Finished difference Result 5240 states and 13612 transitions. [2021-07-09 16:53:06,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:06,522 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:06,532 INFO L225 Difference]: With dead ends: 5240 [2021-07-09 16:53:06,532 INFO L226 Difference]: Without dead ends: 5240 [2021-07-09 16:53:06,533 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1053.0ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:06,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2021-07-09 16:53:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4641. [2021-07-09 16:53:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4639 states have (on average 2.6704031041172667) internal successors, (12388), 4640 states have internal predecessors, (12388), 0 states have call successors, (0), 0 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 16:53:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 12388 transitions. [2021-07-09 16:53:06,694 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 12388 transitions. Word has length 114 [2021-07-09 16:53:06,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:06,694 INFO L482 AbstractCegarLoop]: Abstraction has 4641 states and 12388 transitions. [2021-07-09 16:53:06,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 12388 transitions. [2021-07-09 16:53:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:06,728 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:06,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:06,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:53:06,729 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:06,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:06,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1957310510, now seen corresponding path program 4 times [2021-07-09 16:53:06,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:06,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755290741] [2021-07-09 16:53:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:07,149 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 16:53:07,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:07,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755290741] [2021-07-09 16:53:07,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755290741] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:07,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:07,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:07,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000652189] [2021-07-09 16:53:07,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:07,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:07,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:07,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:07,151 INFO L87 Difference]: Start difference. First operand 4641 states and 12388 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:07,950 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-09 16:53:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:08,581 INFO L93 Difference]: Finished difference Result 5618 states and 14458 transitions. [2021-07-09 16:53:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:08,581 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:08,593 INFO L225 Difference]: With dead ends: 5618 [2021-07-09 16:53:08,593 INFO L226 Difference]: Without dead ends: 5618 [2021-07-09 16:53:08,594 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1206.9ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2021-07-09 16:53:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 4688. [2021-07-09 16:53:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4686 states have (on average 2.667733674775928) internal successors, (12501), 4687 states have internal predecessors, (12501), 0 states have call successors, (0), 0 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 16:53:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 12501 transitions. [2021-07-09 16:53:08,684 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 12501 transitions. Word has length 114 [2021-07-09 16:53:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:08,684 INFO L482 AbstractCegarLoop]: Abstraction has 4688 states and 12501 transitions. [2021-07-09 16:53:08,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 12501 transitions. [2021-07-09 16:53:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:08,709 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:08,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:08,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:53:08,710 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:08,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:08,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1573319360, now seen corresponding path program 5 times [2021-07-09 16:53:08,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:08,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831637266] [2021-07-09 16:53:08,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:09,157 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 16:53:09,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:09,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831637266] [2021-07-09 16:53:09,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831637266] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:09,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:09,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:09,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041596074] [2021-07-09 16:53:09,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:09,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:09,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:09,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:09,159 INFO L87 Difference]: Start difference. First operand 4688 states and 12501 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:09,767 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-09 16:53:09,915 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-09 16:53:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:10,398 INFO L93 Difference]: Finished difference Result 5759 states and 14797 transitions. [2021-07-09 16:53:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:10,399 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:10,408 INFO L225 Difference]: With dead ends: 5759 [2021-07-09 16:53:10,408 INFO L226 Difference]: Without dead ends: 5759 [2021-07-09 16:53:10,409 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1095.9ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-07-09 16:53:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4782. [2021-07-09 16:53:10,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.6625523012552303) internal successors, (12727), 4781 states have internal predecessors, (12727), 0 states have call successors, (0), 0 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 16:53:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12727 transitions. [2021-07-09 16:53:10,520 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12727 transitions. Word has length 114 [2021-07-09 16:53:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:10,521 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12727 transitions. [2021-07-09 16:53:10,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12727 transitions. [2021-07-09 16:53:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:10,529 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:10,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:10,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:53:10,530 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:10,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:10,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1704432286, now seen corresponding path program 6 times [2021-07-09 16:53:10,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:10,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020944846] [2021-07-09 16:53:10,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:10,981 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 16:53:10,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:10,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020944846] [2021-07-09 16:53:10,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020944846] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:10,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:10,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:10,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164281347] [2021-07-09 16:53:10,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:10,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:10,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:10,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:10,983 INFO L87 Difference]: Start difference. First operand 4782 states and 12727 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:11,621 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-09 16:53:11,753 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-09 16:53:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:12,203 INFO L93 Difference]: Finished difference Result 5900 states and 15136 transitions. [2021-07-09 16:53:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:12,204 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:12,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:12,214 INFO L225 Difference]: With dead ends: 5900 [2021-07-09 16:53:12,214 INFO L226 Difference]: Without dead ends: 5900 [2021-07-09 16:53:12,214 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1080.3ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:12,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-07-09 16:53:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4829. [2021-07-09 16:53:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4827 states have (on average 2.6600372902423866) internal successors, (12840), 4828 states have internal predecessors, (12840), 0 states have call successors, (0), 0 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 16:53:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 12840 transitions. [2021-07-09 16:53:12,328 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 12840 transitions. Word has length 114 [2021-07-09 16:53:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:12,329 INFO L482 AbstractCegarLoop]: Abstraction has 4829 states and 12840 transitions. [2021-07-09 16:53:12,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 12840 transitions. [2021-07-09 16:53:12,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:12,337 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:12,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:12,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:53:12,337 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:12,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:12,338 INFO L82 PathProgramCache]: Analyzing trace with hash 561940594, now seen corresponding path program 7 times [2021-07-09 16:53:12,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:12,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533627239] [2021-07-09 16:53:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:12,731 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 16:53:12,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:12,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533627239] [2021-07-09 16:53:12,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533627239] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:12,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:12,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:12,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904714409] [2021-07-09 16:53:12,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:12,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:12,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:12,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:12,733 INFO L87 Difference]: Start difference. First operand 4829 states and 12840 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:13,375 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-09 16:53:13,530 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-09 16:53:13,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:13,951 INFO L93 Difference]: Finished difference Result 5302 states and 13818 transitions. [2021-07-09 16:53:13,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:13,951 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:13,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:13,968 INFO L225 Difference]: With dead ends: 5302 [2021-07-09 16:53:13,968 INFO L226 Difference]: Without dead ends: 5302 [2021-07-09 16:53:13,968 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1062.2ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2021-07-09 16:53:14,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 4524. [2021-07-09 16:53:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 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 16:53:14,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-07-09 16:53:14,094 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-07-09 16:53:14,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:14,094 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-07-09 16:53:14,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-07-09 16:53:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:14,102 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:14,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:14,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:53:14,103 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:14,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:14,103 INFO L82 PathProgramCache]: Analyzing trace with hash 126114190, now seen corresponding path program 8 times [2021-07-09 16:53:14,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:14,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300126114] [2021-07-09 16:53:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:14,541 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 16:53:14,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:14,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300126114] [2021-07-09 16:53:14,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300126114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:14,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:14,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:14,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813229971] [2021-07-09 16:53:14,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:14,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:14,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:14,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:14,543 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:15,174 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:53:15,321 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:15,519 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:15,761 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:16,081 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:16,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:16,264 INFO L93 Difference]: Finished difference Result 8479 states and 22743 transitions. [2021-07-09 16:53:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:16,271 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:16,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:16,283 INFO L225 Difference]: With dead ends: 8479 [2021-07-09 16:53:16,283 INFO L226 Difference]: Without dead ends: 8479 [2021-07-09 16:53:16,283 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1610.0ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-07-09 16:53:16,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 4594. [2021-07-09 16:53:16,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4592 states have (on average 2.684233449477352) internal successors, (12326), 4593 states have internal predecessors, (12326), 0 states have call successors, (0), 0 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 16:53:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 12326 transitions. [2021-07-09 16:53:16,442 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 12326 transitions. Word has length 114 [2021-07-09 16:53:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:16,443 INFO L482 AbstractCegarLoop]: Abstraction has 4594 states and 12326 transitions. [2021-07-09 16:53:16,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 12326 transitions. [2021-07-09 16:53:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:16,450 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:16,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:16,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 16:53:16,450 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:16,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:16,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1959264756, now seen corresponding path program 9 times [2021-07-09 16:53:16,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:16,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085559845] [2021-07-09 16:53:16,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:16,964 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 16:53:16,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:16,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085559845] [2021-07-09 16:53:16,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085559845] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:16,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:16,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:16,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432440133] [2021-07-09 16:53:16,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:16,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:16,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:16,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:16,966 INFO L87 Difference]: Start difference. First operand 4594 states and 12326 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:17,936 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:18,104 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:53:18,273 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:53:18,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:18,406 INFO L93 Difference]: Finished difference Result 7977 states and 21077 transitions. [2021-07-09 16:53:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:18,406 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:18,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:18,420 INFO L225 Difference]: With dead ends: 7977 [2021-07-09 16:53:18,420 INFO L226 Difference]: Without dead ends: 7977 [2021-07-09 16:53:18,420 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1389.3ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-07-09 16:53:18,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 4692. [2021-07-09 16:53:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 2.6714285714285713) internal successors, (12529), 4691 states have internal predecessors, (12529), 0 states have call successors, (0), 0 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 16:53:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 12529 transitions. [2021-07-09 16:53:18,521 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 12529 transitions. Word has length 114 [2021-07-09 16:53:18,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:18,522 INFO L482 AbstractCegarLoop]: Abstraction has 4692 states and 12529 transitions. [2021-07-09 16:53:18,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:18,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 12529 transitions. [2021-07-09 16:53:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:18,529 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:18,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:18,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 16:53:18,529 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:18,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1176796782, now seen corresponding path program 10 times [2021-07-09 16:53:18,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:18,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118461076] [2021-07-09 16:53:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:19,009 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 16:53:19,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:19,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118461076] [2021-07-09 16:53:19,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118461076] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:19,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:19,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:19,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023797136] [2021-07-09 16:53:19,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:19,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:19,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:19,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:19,012 INFO L87 Difference]: Start difference. First operand 4692 states and 12529 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:19,735 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-07-09 16:53:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:20,144 INFO L93 Difference]: Finished difference Result 6412 states and 16826 transitions. [2021-07-09 16:53:20,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:20,154 INFO L225 Difference]: With dead ends: 6412 [2021-07-09 16:53:20,154 INFO L226 Difference]: Without dead ends: 6412 [2021-07-09 16:53:20,156 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 968.6ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-07-09 16:53:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4842. [2021-07-09 16:53:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4840 states have (on average 2.671694214876033) internal successors, (12931), 4841 states have internal predecessors, (12931), 0 states have call successors, (0), 0 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 16:53:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 12931 transitions. [2021-07-09 16:53:20,226 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 12931 transitions. Word has length 114 [2021-07-09 16:53:20,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:20,226 INFO L482 AbstractCegarLoop]: Abstraction has 4842 states and 12931 transitions. [2021-07-09 16:53:20,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:20,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 12931 transitions. [2021-07-09 16:53:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:20,232 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:20,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:20,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 16:53:20,233 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:20,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:20,233 INFO L82 PathProgramCache]: Analyzing trace with hash -320288030, now seen corresponding path program 1 times [2021-07-09 16:53:20,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:20,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981166339] [2021-07-09 16:53:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:20,935 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 16:53:20,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:20,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981166339] [2021-07-09 16:53:20,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981166339] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:20,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:20,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:53:20,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536212498] [2021-07-09 16:53:20,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:53:20,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:20,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:53:20,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:53:20,938 INFO L87 Difference]: Start difference. First operand 4842 states and 12931 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:24,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:24,769 INFO L93 Difference]: Finished difference Result 11257 states and 30227 transitions. [2021-07-09 16:53:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-09 16:53:24,770 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:24,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:24,788 INFO L225 Difference]: With dead ends: 11257 [2021-07-09 16:53:24,789 INFO L226 Difference]: Without dead ends: 11172 [2021-07-09 16:53:24,790 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 2399.1ms TimeCoverageRelationStatistics Valid=960, Invalid=3732, Unknown=0, NotChecked=0, Total=4692 [2021-07-09 16:53:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2021-07-09 16:53:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 8109. [2021-07-09 16:53:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8109 states, 8107 states have (on average 2.685703712840755) internal successors, (21773), 8108 states have internal predecessors, (21773), 0 states have call successors, (0), 0 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 16:53:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 21773 transitions. [2021-07-09 16:53:25,010 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 21773 transitions. Word has length 114 [2021-07-09 16:53:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:25,011 INFO L482 AbstractCegarLoop]: Abstraction has 8109 states and 21773 transitions. [2021-07-09 16:53:25,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 21773 transitions. [2021-07-09 16:53:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:25,024 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:25,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:25,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 16:53:25,025 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:25,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:25,025 INFO L82 PathProgramCache]: Analyzing trace with hash 69643098, now seen corresponding path program 11 times [2021-07-09 16:53:25,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:25,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868979141] [2021-07-09 16:53:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:25,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:25,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868979141] [2021-07-09 16:53:25,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868979141] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:25,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:25,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:25,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929362344] [2021-07-09 16:53:25,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:25,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:25,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:25,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:25,565 INFO L87 Difference]: Start difference. First operand 8109 states and 21773 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:26,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:26,839 INFO L93 Difference]: Finished difference Result 11359 states and 29724 transitions. [2021-07-09 16:53:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:26,840 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:26,856 INFO L225 Difference]: With dead ends: 11359 [2021-07-09 16:53:26,856 INFO L226 Difference]: Without dead ends: 11359 [2021-07-09 16:53:26,856 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1147.0ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2021-07-09 16:53:26,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 8214. [2021-07-09 16:53:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 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 16:53:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-07-09 16:53:26,989 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-07-09 16:53:26,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:26,989 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-07-09 16:53:26,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:26,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-07-09 16:53:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:26,998 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:26,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:26,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 16:53:26,999 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:26,999 INFO L82 PathProgramCache]: Analyzing trace with hash 696589166, now seen corresponding path program 12 times [2021-07-09 16:53:26,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:26,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787896867] [2021-07-09 16:53:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:27,400 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 16:53:27,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:27,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787896867] [2021-07-09 16:53:27,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787896867] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:27,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:27,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:27,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886494184] [2021-07-09 16:53:27,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:27,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:27,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:27,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:27,402 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:28,034 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:53:28,183 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:28,338 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:53:28,547 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:28,757 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:28,888 INFO L93 Difference]: Finished difference Result 12543 states and 33366 transitions. [2021-07-09 16:53:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:28,905 INFO L225 Difference]: With dead ends: 12543 [2021-07-09 16:53:28,905 INFO L226 Difference]: Without dead ends: 12543 [2021-07-09 16:53:28,906 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1420.2ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12543 states. [2021-07-09 16:53:29,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12543 to 8214. [2021-07-09 16:53:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 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 16:53:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-07-09 16:53:29,032 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-07-09 16:53:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:29,032 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-07-09 16:53:29,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-07-09 16:53:29,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:29,042 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:29,042 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:29,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 16:53:29,042 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:29,042 INFO L82 PathProgramCache]: Analyzing trace with hash 317771852, now seen corresponding path program 13 times [2021-07-09 16:53:29,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:29,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909532779] [2021-07-09 16:53:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:29,439 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 16:53:29,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:29,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909532779] [2021-07-09 16:53:29,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909532779] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:29,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:29,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:29,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073054796] [2021-07-09 16:53:29,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:29,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:29,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:29,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:29,440 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:30,245 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:53:30,397 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:53:30,594 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:30,800 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:30,931 INFO L93 Difference]: Finished difference Result 13047 states and 34842 transitions. [2021-07-09 16:53:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:30,932 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:30,950 INFO L225 Difference]: With dead ends: 13047 [2021-07-09 16:53:30,950 INFO L226 Difference]: Without dead ends: 13047 [2021-07-09 16:53:30,951 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1435.5ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:30,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13047 states. [2021-07-09 16:53:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13047 to 8214. [2021-07-09 16:53:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 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 16:53:31,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-07-09 16:53:31,082 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-07-09 16:53:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:31,082 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-07-09 16:53:31,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-07-09 16:53:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:31,091 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:31,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:31,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 16:53:31,092 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash 658016210, now seen corresponding path program 14 times [2021-07-09 16:53:31,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:31,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921213940] [2021-07-09 16:53:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:31,531 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 16:53:31,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:31,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921213940] [2021-07-09 16:53:31,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921213940] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:31,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:31,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:31,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866443505] [2021-07-09 16:53:31,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:31,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:31,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:31,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:31,533 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:32,630 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:32,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:32,741 INFO L93 Difference]: Finished difference Result 9491 states and 25105 transitions. [2021-07-09 16:53:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:32,757 INFO L225 Difference]: With dead ends: 9491 [2021-07-09 16:53:32,757 INFO L226 Difference]: Without dead ends: 9491 [2021-07-09 16:53:32,758 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1196.2ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2021-07-09 16:53:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 6576. [2021-07-09 16:53:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6576 states, 6574 states have (on average 2.648919987830849) internal successors, (17414), 6575 states have internal predecessors, (17414), 0 states have call successors, (0), 0 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 16:53:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 17414 transitions. [2021-07-09 16:53:32,953 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 17414 transitions. Word has length 114 [2021-07-09 16:53:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:32,954 INFO L482 AbstractCegarLoop]: Abstraction has 6576 states and 17414 transitions. [2021-07-09 16:53:32,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:32,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 17414 transitions. [2021-07-09 16:53:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:32,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:32,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:32,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 16:53:32,993 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 334808012, now seen corresponding path program 15 times [2021-07-09 16:53:32,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:32,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101383469] [2021-07-09 16:53:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:33,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:33,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101383469] [2021-07-09 16:53:33,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101383469] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:33,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:33,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:33,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533267967] [2021-07-09 16:53:33,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:33,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:33,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:33,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:33,483 INFO L87 Difference]: Start difference. First operand 6576 states and 17414 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:34,264 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:34,443 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:34,667 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:34,868 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:35,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:35,019 INFO L93 Difference]: Finished difference Result 16373 states and 43362 transitions. [2021-07-09 16:53:35,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:35,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:35,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:35,043 INFO L225 Difference]: With dead ends: 16373 [2021-07-09 16:53:35,043 INFO L226 Difference]: Without dead ends: 16373 [2021-07-09 16:53:35,043 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1431.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16373 states. [2021-07-09 16:53:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16373 to 6680. [2021-07-09 16:53:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.652890086852351) internal successors, (17716), 6679 states have internal predecessors, (17716), 0 states have call successors, (0), 0 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 16:53:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17716 transitions. [2021-07-09 16:53:35,185 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17716 transitions. Word has length 114 [2021-07-09 16:53:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:35,185 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17716 transitions. [2021-07-09 16:53:35,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17716 transitions. [2021-07-09 16:53:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:35,193 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:35,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:35,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 16:53:35,193 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:35,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:35,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1750570934, now seen corresponding path program 16 times [2021-07-09 16:53:35,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:35,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452278751] [2021-07-09 16:53:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:35,564 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 16:53:35,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:35,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452278751] [2021-07-09 16:53:35,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452278751] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:35,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:35,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:35,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900429512] [2021-07-09 16:53:35,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:35,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:35,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:35,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:35,566 INFO L87 Difference]: Start difference. First operand 6680 states and 17716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:36,193 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:53:36,345 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:36,515 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:36,705 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:53:36,928 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:53:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:37,092 INFO L93 Difference]: Finished difference Result 15951 states and 41848 transitions. [2021-07-09 16:53:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:37,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:37,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:37,115 INFO L225 Difference]: With dead ends: 15951 [2021-07-09 16:53:37,115 INFO L226 Difference]: Without dead ends: 15951 [2021-07-09 16:53:37,115 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1436.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:37,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15951 states. [2021-07-09 16:53:37,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15951 to 6680. [2021-07-09 16:53:37,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.6501946690625937) internal successors, (17698), 6679 states have internal predecessors, (17698), 0 states have call successors, (0), 0 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 16:53:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17698 transitions. [2021-07-09 16:53:37,264 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17698 transitions. Word has length 114 [2021-07-09 16:53:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:37,264 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17698 transitions. [2021-07-09 16:53:37,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17698 transitions. [2021-07-09 16:53:37,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:37,272 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:37,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:37,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 16:53:37,273 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:37,273 INFO L82 PathProgramCache]: Analyzing trace with hash 905282988, now seen corresponding path program 17 times [2021-07-09 16:53:37,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:37,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322809922] [2021-07-09 16:53:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:37,622 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 16:53:37,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:37,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322809922] [2021-07-09 16:53:37,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322809922] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:37,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:37,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:37,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314508762] [2021-07-09 16:53:37,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:37,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:37,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:37,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:37,623 INFO L87 Difference]: Start difference. First operand 6680 states and 17698 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:38,258 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:53:38,407 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:38,559 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:53:38,755 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:38,959 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:39,101 INFO L93 Difference]: Finished difference Result 13429 states and 35341 transitions. [2021-07-09 16:53:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:39,101 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:39,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:39,120 INFO L225 Difference]: With dead ends: 13429 [2021-07-09 16:53:39,120 INFO L226 Difference]: Without dead ends: 13429 [2021-07-09 16:53:39,120 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1374.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13429 states. [2021-07-09 16:53:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13429 to 6652. [2021-07-09 16:53:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6652 states, 6650 states have (on average 2.6490225563909773) internal successors, (17616), 6651 states have internal predecessors, (17616), 0 states have call successors, (0), 0 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 16:53:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 17616 transitions. [2021-07-09 16:53:39,321 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 17616 transitions. Word has length 114 [2021-07-09 16:53:39,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:39,322 INFO L482 AbstractCegarLoop]: Abstraction has 6652 states and 17616 transitions. [2021-07-09 16:53:39,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 17616 transitions. [2021-07-09 16:53:39,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:39,329 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:39,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:39,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 16:53:39,329 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:39,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:39,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1203683662, now seen corresponding path program 18 times [2021-07-09 16:53:39,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:39,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178780424] [2021-07-09 16:53:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:39,658 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 16:53:39,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:39,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178780424] [2021-07-09 16:53:39,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178780424] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:39,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:39,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:39,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901795436] [2021-07-09 16:53:39,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:39,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:39,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:39,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:39,660 INFO L87 Difference]: Start difference. First operand 6652 states and 17616 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:40,296 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:53:40,456 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:53:40,616 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:40,796 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:40,999 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:41,165 INFO L93 Difference]: Finished difference Result 12763 states and 33601 transitions. [2021-07-09 16:53:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:41,184 INFO L225 Difference]: With dead ends: 12763 [2021-07-09 16:53:41,184 INFO L226 Difference]: Without dead ends: 12763 [2021-07-09 16:53:41,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1362.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12763 states. [2021-07-09 16:53:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12763 to 6682. [2021-07-09 16:53:41,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 6680 states have (on average 2.6501497005988024) internal successors, (17703), 6681 states have internal predecessors, (17703), 0 states have call successors, (0), 0 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 16:53:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 17703 transitions. [2021-07-09 16:53:41,317 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 17703 transitions. Word has length 114 [2021-07-09 16:53:41,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:41,317 INFO L482 AbstractCegarLoop]: Abstraction has 6682 states and 17703 transitions. [2021-07-09 16:53:41,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 17703 transitions. [2021-07-09 16:53:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:41,327 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:41,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:41,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 16:53:41,327 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:41,328 INFO L82 PathProgramCache]: Analyzing trace with hash -881695284, now seen corresponding path program 19 times [2021-07-09 16:53:41,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:41,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683709872] [2021-07-09 16:53:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:41,675 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 16:53:41,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:41,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683709872] [2021-07-09 16:53:41,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683709872] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:41,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:41,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:41,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609777934] [2021-07-09 16:53:41,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:41,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:41,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:41,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:41,677 INFO L87 Difference]: Start difference. First operand 6682 states and 17703 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:42,293 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:53:42,455 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:53:42,619 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:42,807 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:53:43,009 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:53:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:43,146 INFO L93 Difference]: Finished difference Result 13576 states and 35405 transitions. [2021-07-09 16:53:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:43,147 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:43,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:43,174 INFO L225 Difference]: With dead ends: 13576 [2021-07-09 16:53:43,175 INFO L226 Difference]: Without dead ends: 13576 [2021-07-09 16:53:43,175 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1384.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13576 states. [2021-07-09 16:53:43,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13576 to 6666. [2021-07-09 16:53:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6664 states have (on average 2.649609843937575) internal successors, (17657), 6665 states have internal predecessors, (17657), 0 states have call successors, (0), 0 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 16:53:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 17657 transitions. [2021-07-09 16:53:43,346 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 17657 transitions. Word has length 114 [2021-07-09 16:53:43,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:43,346 INFO L482 AbstractCegarLoop]: Abstraction has 6666 states and 17657 transitions. [2021-07-09 16:53:43,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 17657 transitions. [2021-07-09 16:53:43,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:43,354 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:43,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:43,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 16:53:43,355 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:43,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:43,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1155920082, now seen corresponding path program 20 times [2021-07-09 16:53:43,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:43,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954652604] [2021-07-09 16:53:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:43,694 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 16:53:43,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:43,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954652604] [2021-07-09 16:53:43,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954652604] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:43,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:43,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:43,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360643565] [2021-07-09 16:53:43,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:43,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:43,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:43,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:43,696 INFO L87 Difference]: Start difference. First operand 6666 states and 17657 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:44,516 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:53:44,678 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:44,892 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:53:45,101 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:53:45,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:45,262 INFO L93 Difference]: Finished difference Result 12902 states and 33818 transitions. [2021-07-09 16:53:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:45,281 INFO L225 Difference]: With dead ends: 12902 [2021-07-09 16:53:45,281 INFO L226 Difference]: Without dead ends: 12902 [2021-07-09 16:53:45,282 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1389.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12902 states. [2021-07-09 16:53:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12902 to 6680. [2021-07-09 16:53:45,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.6501946690625937) internal successors, (17698), 6679 states have internal predecessors, (17698), 0 states have call successors, (0), 0 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 16:53:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17698 transitions. [2021-07-09 16:53:45,404 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17698 transitions. Word has length 114 [2021-07-09 16:53:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:45,405 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17698 transitions. [2021-07-09 16:53:45,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17698 transitions. [2021-07-09 16:53:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:45,411 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:45,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:45,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 16:53:45,412 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:45,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1404467062, now seen corresponding path program 21 times [2021-07-09 16:53:45,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:45,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831004933] [2021-07-09 16:53:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:45,734 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 16:53:45,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:45,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831004933] [2021-07-09 16:53:45,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831004933] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:45,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:45,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:45,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272883981] [2021-07-09 16:53:45,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:45,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:45,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:45,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:45,736 INFO L87 Difference]: Start difference. First operand 6680 states and 17698 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:46,500 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:53:46,664 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:46,840 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:47,040 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:47,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:47,168 INFO L93 Difference]: Finished difference Result 10249 states and 27058 transitions. [2021-07-09 16:53:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:47,168 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:47,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:47,182 INFO L225 Difference]: With dead ends: 10249 [2021-07-09 16:53:47,182 INFO L226 Difference]: Without dead ends: 10249 [2021-07-09 16:53:47,182 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1348.2ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2021-07-09 16:53:47,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 6764. [2021-07-09 16:53:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6764 states, 6762 states have (on average 2.653652765454008) internal successors, (17944), 6763 states have internal predecessors, (17944), 0 states have call successors, (0), 0 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 16:53:47,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6764 states to 6764 states and 17944 transitions. [2021-07-09 16:53:47,305 INFO L78 Accepts]: Start accepts. Automaton has 6764 states and 17944 transitions. Word has length 114 [2021-07-09 16:53:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:47,305 INFO L482 AbstractCegarLoop]: Abstraction has 6764 states and 17944 transitions. [2021-07-09 16:53:47,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 6764 states and 17944 transitions. [2021-07-09 16:53:47,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:47,313 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:47,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:47,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 16:53:47,313 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:47,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:47,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1729361230, now seen corresponding path program 2 times [2021-07-09 16:53:47,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:47,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114863375] [2021-07-09 16:53:47,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:47,901 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 16:53:47,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:47,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114863375] [2021-07-09 16:53:47,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114863375] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:47,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:47,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:53:47,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179497869] [2021-07-09 16:53:47,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:53:47,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:47,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:53:47,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:53:47,903 INFO L87 Difference]: Start difference. First operand 6764 states and 17944 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:51,825 INFO L93 Difference]: Finished difference Result 10865 states and 28442 transitions. [2021-07-09 16:53:51,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-09 16:53:51,825 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:51,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:51,845 INFO L225 Difference]: With dead ends: 10865 [2021-07-09 16:53:51,845 INFO L226 Difference]: Without dead ends: 10760 [2021-07-09 16:53:51,846 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 2602.8ms TimeCoverageRelationStatistics Valid=1066, Invalid=4046, Unknown=0, NotChecked=0, Total=5112 [2021-07-09 16:53:51,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2021-07-09 16:53:52,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 8083. [2021-07-09 16:53:52,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8083 states, 8081 states have (on average 2.658458111619849) internal successors, (21483), 8082 states have internal predecessors, (21483), 0 states have call successors, (0), 0 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 16:53:52,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8083 states to 8083 states and 21483 transitions. [2021-07-09 16:53:52,097 INFO L78 Accepts]: Start accepts. Automaton has 8083 states and 21483 transitions. Word has length 114 [2021-07-09 16:53:52,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:52,098 INFO L482 AbstractCegarLoop]: Abstraction has 8083 states and 21483 transitions. [2021-07-09 16:53:52,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:52,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8083 states and 21483 transitions. [2021-07-09 16:53:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:52,109 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:52,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:52,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 16:53:52,110 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:52,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:52,110 INFO L82 PathProgramCache]: Analyzing trace with hash 2119292358, now seen corresponding path program 22 times [2021-07-09 16:53:52,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:52,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168922303] [2021-07-09 16:53:52,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:52,620 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 16:53:52,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:52,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168922303] [2021-07-09 16:53:52,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168922303] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:52,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:52,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:52,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022403556] [2021-07-09 16:53:52,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:52,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:52,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:52,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:52,621 INFO L87 Difference]: Start difference. First operand 8083 states and 21483 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:53,302 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-09 16:53:53,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:53,829 INFO L93 Difference]: Finished difference Result 9579 states and 24648 transitions. [2021-07-09 16:53:53,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:53,829 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:53,843 INFO L225 Difference]: With dead ends: 9579 [2021-07-09 16:53:53,843 INFO L226 Difference]: Without dead ends: 9579 [2021-07-09 16:53:53,844 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1099.7ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-07-09 16:53:53,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 8068. [2021-07-09 16:53:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 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 16:53:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-07-09 16:53:53,964 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-07-09 16:53:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:53,964 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-07-09 16:53:53,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-07-09 16:53:53,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:53,973 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:53,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:53,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 16:53:53,974 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:53,974 INFO L82 PathProgramCache]: Analyzing trace with hash 240129774, now seen corresponding path program 23 times [2021-07-09 16:53:53,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:53,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547072156] [2021-07-09 16:53:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:54,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:54,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547072156] [2021-07-09 16:53:54,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547072156] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:54,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:54,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:54,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779250331] [2021-07-09 16:53:54,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:54,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:54,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:54,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:54,321 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:55,018 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:53:55,163 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:55,345 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:55,529 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:53:55,720 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:53:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:55,883 INFO L93 Difference]: Finished difference Result 18483 states and 48831 transitions. [2021-07-09 16:53:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:55,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:55,916 INFO L225 Difference]: With dead ends: 18483 [2021-07-09 16:53:55,916 INFO L226 Difference]: Without dead ends: 18483 [2021-07-09 16:53:55,917 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1363.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18483 states. [2021-07-09 16:53:56,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18483 to 8188. [2021-07-09 16:53:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8186 states have (on average 2.665404348888346) internal successors, (21819), 8187 states have internal predecessors, (21819), 0 states have call successors, (0), 0 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 16:53:56,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 21819 transitions. [2021-07-09 16:53:56,163 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 21819 transitions. Word has length 114 [2021-07-09 16:53:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:56,164 INFO L482 AbstractCegarLoop]: Abstraction has 8188 states and 21819 transitions. [2021-07-09 16:53:56,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:56,164 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 21819 transitions. [2021-07-09 16:53:56,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:56,175 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:56,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:56,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 16:53:56,175 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:56,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:56,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1845249172, now seen corresponding path program 24 times [2021-07-09 16:53:56,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:56,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715827006] [2021-07-09 16:53:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:56,656 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 16:53:56,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:56,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715827006] [2021-07-09 16:53:56,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715827006] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:56,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:56,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:56,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339540495] [2021-07-09 16:53:56,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:56,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:56,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:56,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:56,658 INFO L87 Difference]: Start difference. First operand 8188 states and 21819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:57,415 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:57,600 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:53:57,794 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:53:58,000 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:53:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:58,157 INFO L93 Difference]: Finished difference Result 17809 states and 46489 transitions. [2021-07-09 16:53:58,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:58,157 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:53:58,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:58,183 INFO L225 Difference]: With dead ends: 17809 [2021-07-09 16:53:58,183 INFO L226 Difference]: Without dead ends: 17809 [2021-07-09 16:53:58,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1397.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17809 states. [2021-07-09 16:53:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17809 to 8158. [2021-07-09 16:53:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8156 states have (on average 2.664541441883276) internal successors, (21732), 8157 states have internal predecessors, (21732), 0 states have call successors, (0), 0 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 16:53:58,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 21732 transitions. [2021-07-09 16:53:58,350 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 21732 transitions. Word has length 114 [2021-07-09 16:53:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:58,350 INFO L482 AbstractCegarLoop]: Abstraction has 8158 states and 21732 transitions. [2021-07-09 16:53:58,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 21732 transitions. [2021-07-09 16:53:58,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:53:58,360 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:58,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:58,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 16:53:58,361 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:58,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:58,361 INFO L82 PathProgramCache]: Analyzing trace with hash 810604750, now seen corresponding path program 25 times [2021-07-09 16:53:58,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:58,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529708107] [2021-07-09 16:53:58,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:58,731 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 16:53:58,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:58,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529708107] [2021-07-09 16:53:58,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529708107] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:58,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:58,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:58,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718657483] [2021-07-09 16:53:58,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:58,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:58,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:58,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:58,733 INFO L87 Difference]: Start difference. First operand 8158 states and 21732 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:53:59,583 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:53:59,737 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:53:59,934 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:00,140 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:00,294 INFO L93 Difference]: Finished difference Result 17863 states and 46765 transitions. [2021-07-09 16:54:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:00,295 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:00,320 INFO L225 Difference]: With dead ends: 17863 [2021-07-09 16:54:00,321 INFO L226 Difference]: Without dead ends: 17863 [2021-07-09 16:54:00,321 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1430.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17863 states. [2021-07-09 16:54:00,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17863 to 8098. [2021-07-09 16:54:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8098 states, 8096 states have (on average 2.662796442687747) internal successors, (21558), 8097 states have internal predecessors, (21558), 0 states have call successors, (0), 0 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 16:54:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8098 states to 8098 states and 21558 transitions. [2021-07-09 16:54:00,483 INFO L78 Accepts]: Start accepts. Automaton has 8098 states and 21558 transitions. Word has length 114 [2021-07-09 16:54:00,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:00,483 INFO L482 AbstractCegarLoop]: Abstraction has 8098 states and 21558 transitions. [2021-07-09 16:54:00,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand 8098 states and 21558 transitions. [2021-07-09 16:54:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:00,492 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:00,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:00,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 16:54:00,492 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:00,492 INFO L82 PathProgramCache]: Analyzing trace with hash 431787436, now seen corresponding path program 26 times [2021-07-09 16:54:00,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:00,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325125459] [2021-07-09 16:54:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:00,844 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 16:54:00,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:00,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325125459] [2021-07-09 16:54:00,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325125459] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:00,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:00,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:00,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72096716] [2021-07-09 16:54:00,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:00,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:00,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:00,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:00,845 INFO L87 Difference]: Start difference. First operand 8098 states and 21558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:01,477 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:54:01,616 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:54:01,766 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:01,968 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:02,172 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:02,308 INFO L93 Difference]: Finished difference Result 13688 states and 36021 transitions. [2021-07-09 16:54:02,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:02,308 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:02,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:02,328 INFO L225 Difference]: With dead ends: 13688 [2021-07-09 16:54:02,328 INFO L226 Difference]: Without dead ends: 13688 [2021-07-09 16:54:02,330 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1351.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2021-07-09 16:54:02,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 8068. [2021-07-09 16:54:02,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 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 16:54:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-07-09 16:54:02,465 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-07-09 16:54:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:02,465 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-07-09 16:54:02,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-07-09 16:54:02,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:02,474 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:02,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:02,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 16:54:02,474 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:02,474 INFO L82 PathProgramCache]: Analyzing trace with hash -165772534, now seen corresponding path program 27 times [2021-07-09 16:54:02,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:02,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532182712] [2021-07-09 16:54:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:02,841 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 16:54:02,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:02,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532182712] [2021-07-09 16:54:02,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532182712] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:02,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:02,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:02,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061822508] [2021-07-09 16:54:02,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:02,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:02,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:02,842 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:03,366 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-07-09 16:54:03,490 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:54:03,634 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:03,813 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:03,989 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:04,188 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:04,405 INFO L93 Difference]: Finished difference Result 16219 states and 42568 transitions. [2021-07-09 16:54:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:04,431 INFO L225 Difference]: With dead ends: 16219 [2021-07-09 16:54:04,431 INFO L226 Difference]: Without dead ends: 16219 [2021-07-09 16:54:04,431 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1411.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16219 states. [2021-07-09 16:54:04,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16219 to 8138. [2021-07-09 16:54:04,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8138 states, 8136 states have (on average 2.6642084562438546) internal successors, (21676), 8137 states have internal predecessors, (21676), 0 states have call successors, (0), 0 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 16:54:04,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8138 states to 8138 states and 21676 transitions. [2021-07-09 16:54:04,600 INFO L78 Accepts]: Start accepts. Automaton has 8138 states and 21676 transitions. Word has length 114 [2021-07-09 16:54:04,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:04,600 INFO L482 AbstractCegarLoop]: Abstraction has 8138 states and 21676 transitions. [2021-07-09 16:54:04,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 8138 states and 21676 transitions. [2021-07-09 16:54:04,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:04,609 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:04,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:04,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 16:54:04,610 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:04,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:04,610 INFO L82 PathProgramCache]: Analyzing trace with hash 2043815816, now seen corresponding path program 28 times [2021-07-09 16:54:04,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:04,611 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314395824] [2021-07-09 16:54:04,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:04,972 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 16:54:04,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:04,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314395824] [2021-07-09 16:54:04,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314395824] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:04,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:04,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:04,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463312456] [2021-07-09 16:54:04,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:04,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:04,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:04,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:04,974 INFO L87 Difference]: Start difference. First operand 8138 states and 21676 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:05,628 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:54:05,777 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:05,959 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:06,160 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:06,367 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:06,533 INFO L93 Difference]: Finished difference Result 15545 states and 40226 transitions. [2021-07-09 16:54:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:06,534 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:06,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:06,557 INFO L225 Difference]: With dead ends: 15545 [2021-07-09 16:54:06,557 INFO L226 Difference]: Without dead ends: 15545 [2021-07-09 16:54:06,558 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1419.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:06,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2021-07-09 16:54:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 7996. [2021-07-09 16:54:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7996 states, 7994 states have (on average 2.660370277708281) internal successors, (21267), 7995 states have internal predecessors, (21267), 0 states have call successors, (0), 0 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 16:54:06,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7996 states to 7996 states and 21267 transitions. [2021-07-09 16:54:06,710 INFO L78 Accepts]: Start accepts. Automaton has 7996 states and 21267 transitions. Word has length 114 [2021-07-09 16:54:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:06,711 INFO L482 AbstractCegarLoop]: Abstraction has 7996 states and 21267 transitions. [2021-07-09 16:54:06,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:06,711 INFO L276 IsEmpty]: Start isEmpty. Operand 7996 states and 21267 transitions. [2021-07-09 16:54:06,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:06,719 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:06,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:06,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 16:54:06,719 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:06,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:06,720 INFO L82 PathProgramCache]: Analyzing trace with hash 404702442, now seen corresponding path program 29 times [2021-07-09 16:54:06,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:06,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457001528] [2021-07-09 16:54:06,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:07,107 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 16:54:07,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:07,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457001528] [2021-07-09 16:54:07,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457001528] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:07,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:07,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:07,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755669156] [2021-07-09 16:54:07,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:07,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:07,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:07,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:07,108 INFO L87 Difference]: Start difference. First operand 7996 states and 21267 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:07,742 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:54:07,890 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:08,050 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:08,249 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:08,455 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:08,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:08,599 INFO L93 Difference]: Finished difference Result 15599 states and 40502 transitions. [2021-07-09 16:54:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:08,600 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:08,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:08,622 INFO L225 Difference]: With dead ends: 15599 [2021-07-09 16:54:08,622 INFO L226 Difference]: Without dead ends: 15599 [2021-07-09 16:54:08,622 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1414.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2021-07-09 16:54:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 7936. [2021-07-09 16:54:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7936 states, 7934 states have (on average 2.6585581043609783) internal successors, (21093), 7935 states have internal predecessors, (21093), 0 states have call successors, (0), 0 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 16:54:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7936 states to 7936 states and 21093 transitions. [2021-07-09 16:54:08,864 INFO L78 Accepts]: Start accepts. Automaton has 7936 states and 21093 transitions. Word has length 114 [2021-07-09 16:54:08,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:08,864 INFO L482 AbstractCegarLoop]: Abstraction has 7936 states and 21093 transitions. [2021-07-09 16:54:08,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 7936 states and 21093 transitions. [2021-07-09 16:54:08,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:08,872 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:08,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:08,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 16:54:08,872 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:08,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:08,873 INFO L82 PathProgramCache]: Analyzing trace with hash 25885128, now seen corresponding path program 30 times [2021-07-09 16:54:08,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:08,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374028729] [2021-07-09 16:54:08,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:09,233 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 16:54:09,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:09,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374028729] [2021-07-09 16:54:09,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374028729] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:09,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:09,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:09,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146879483] [2021-07-09 16:54:09,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:09,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:09,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:09,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:09,235 INFO L87 Difference]: Start difference. First operand 7936 states and 21093 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:10,120 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:10,295 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:10,494 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:10,647 INFO L93 Difference]: Finished difference Result 15915 states and 41412 transitions. [2021-07-09 16:54:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:10,672 INFO L225 Difference]: With dead ends: 15915 [2021-07-09 16:54:10,672 INFO L226 Difference]: Without dead ends: 15915 [2021-07-09 16:54:10,673 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1317.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:10,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15915 states. [2021-07-09 16:54:10,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15915 to 7906. [2021-07-09 16:54:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7906 states, 7904 states have (on average 2.6576417004048585) internal successors, (21006), 7905 states have internal predecessors, (21006), 0 states have call successors, (0), 0 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 16:54:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 21006 transitions. [2021-07-09 16:54:10,820 INFO L78 Accepts]: Start accepts. Automaton has 7906 states and 21006 transitions. Word has length 114 [2021-07-09 16:54:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:10,820 INFO L482 AbstractCegarLoop]: Abstraction has 7906 states and 21006 transitions. [2021-07-09 16:54:10,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7906 states and 21006 transitions. [2021-07-09 16:54:10,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:10,828 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:10,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:10,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-09 16:54:10,828 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:10,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:10,829 INFO L82 PathProgramCache]: Analyzing trace with hash 366129486, now seen corresponding path program 31 times [2021-07-09 16:54:10,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:10,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240956332] [2021-07-09 16:54:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:11,196 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 16:54:11,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:11,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240956332] [2021-07-09 16:54:11,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240956332] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:11,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:11,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:11,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950159668] [2021-07-09 16:54:11,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:11,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:11,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:11,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:11,197 INFO L87 Difference]: Start difference. First operand 7906 states and 21006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:11,981 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:54:12,133 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:12,333 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:12,540 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:12,677 INFO L93 Difference]: Finished difference Result 11341 states and 29538 transitions. [2021-07-09 16:54:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:12,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:12,692 INFO L225 Difference]: With dead ends: 11341 [2021-07-09 16:54:12,693 INFO L226 Difference]: Without dead ends: 11341 [2021-07-09 16:54:12,693 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1381.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2021-07-09 16:54:12,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 7306. [2021-07-09 16:54:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 7304 states have (on average 2.6521084337349397) internal successors, (19371), 7305 states have internal predecessors, (19371), 0 states have call successors, (0), 0 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 16:54:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 19371 transitions. [2021-07-09 16:54:12,806 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 19371 transitions. Word has length 114 [2021-07-09 16:54:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:12,806 INFO L482 AbstractCegarLoop]: Abstraction has 7306 states and 19371 transitions. [2021-07-09 16:54:12,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:12,806 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 19371 transitions. [2021-07-09 16:54:12,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:12,814 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:12,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:12,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-09 16:54:12,814 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:12,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:12,814 INFO L82 PathProgramCache]: Analyzing trace with hash 718495150, now seen corresponding path program 32 times [2021-07-09 16:54:12,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:12,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762610351] [2021-07-09 16:54:12,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:13,140 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 16:54:13,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:13,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762610351] [2021-07-09 16:54:13,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762610351] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:13,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:13,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:13,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116225531] [2021-07-09 16:54:13,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:13,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:13,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:13,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:13,142 INFO L87 Difference]: Start difference. First operand 7306 states and 19371 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:13,980 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:14,148 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:14,318 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:14,496 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:14,644 INFO L93 Difference]: Finished difference Result 17786 states and 47226 transitions. [2021-07-09 16:54:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:14,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:14,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:14,671 INFO L225 Difference]: With dead ends: 17786 [2021-07-09 16:54:14,672 INFO L226 Difference]: Without dead ends: 17786 [2021-07-09 16:54:14,672 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1381.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17786 states. [2021-07-09 16:54:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17786 to 7498. [2021-07-09 16:54:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7496 states have (on average 2.6586179295624333) internal successors, (19929), 7497 states have internal predecessors, (19929), 0 states have call successors, (0), 0 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 16:54:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 19929 transitions. [2021-07-09 16:54:14,827 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 19929 transitions. Word has length 114 [2021-07-09 16:54:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:14,827 INFO L482 AbstractCegarLoop]: Abstraction has 7498 states and 19929 transitions. [2021-07-09 16:54:14,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 19929 transitions. [2021-07-09 16:54:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:14,834 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:14,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:14,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-09 16:54:14,835 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:14,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:14,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1366883796, now seen corresponding path program 33 times [2021-07-09 16:54:14,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:14,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454300455] [2021-07-09 16:54:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:15,165 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 16:54:15,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:15,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454300455] [2021-07-09 16:54:15,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454300455] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:15,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:15,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:15,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415326487] [2021-07-09 16:54:15,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:15,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:15,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:15,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:15,167 INFO L87 Difference]: Start difference. First operand 7498 states and 19929 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:15,947 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:16,120 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:16,310 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:16,507 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:16,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:16,672 INFO L93 Difference]: Finished difference Result 17364 states and 45712 transitions. [2021-07-09 16:54:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:16,673 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:16,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:16,699 INFO L225 Difference]: With dead ends: 17364 [2021-07-09 16:54:16,699 INFO L226 Difference]: Without dead ends: 17364 [2021-07-09 16:54:16,699 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1354.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17364 states. [2021-07-09 16:54:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17364 to 7498. [2021-07-09 16:54:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7496 states have (on average 2.6562166488794023) internal successors, (19911), 7497 states have internal predecessors, (19911), 0 states have call successors, (0), 0 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 16:54:16,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 19911 transitions. [2021-07-09 16:54:16,864 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 19911 transitions. Word has length 114 [2021-07-09 16:54:16,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:16,865 INFO L482 AbstractCegarLoop]: Abstraction has 7498 states and 19911 transitions. [2021-07-09 16:54:16,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 19911 transitions. [2021-07-09 16:54:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:16,873 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:16,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:16,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-09 16:54:16,873 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:16,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1288970126, now seen corresponding path program 34 times [2021-07-09 16:54:16,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:16,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305385842] [2021-07-09 16:54:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:17,208 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 16:54:17,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:17,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305385842] [2021-07-09 16:54:17,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305385842] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:17,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:17,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:17,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904494923] [2021-07-09 16:54:17,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:17,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:17,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:17,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:17,210 INFO L87 Difference]: Start difference. First operand 7498 states and 19911 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:17,983 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:18,187 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:18,373 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:18,572 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:18,713 INFO L93 Difference]: Finished difference Result 14842 states and 39205 transitions. [2021-07-09 16:54:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:18,740 INFO L225 Difference]: With dead ends: 14842 [2021-07-09 16:54:18,740 INFO L226 Difference]: Without dead ends: 14842 [2021-07-09 16:54:18,741 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1339.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:18,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14842 states. [2021-07-09 16:54:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14842 to 7470. [2021-07-09 16:54:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7470 states, 7468 states have (on average 2.655195500803428) internal successors, (19829), 7469 states have internal predecessors, (19829), 0 states have call successors, (0), 0 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 16:54:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 19829 transitions. [2021-07-09 16:54:18,895 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 19829 transitions. Word has length 114 [2021-07-09 16:54:18,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:18,895 INFO L482 AbstractCegarLoop]: Abstraction has 7470 states and 19829 transitions. [2021-07-09 16:54:18,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 19829 transitions. [2021-07-09 16:54:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:18,903 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:18,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:18,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 16:54:18,903 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:18,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:18,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1587370800, now seen corresponding path program 35 times [2021-07-09 16:54:18,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:18,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552401432] [2021-07-09 16:54:18,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:19,218 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 16:54:19,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:19,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552401432] [2021-07-09 16:54:19,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552401432] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:19,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:19,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:19,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502284579] [2021-07-09 16:54:19,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:19,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:19,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:19,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:19,219 INFO L87 Difference]: Start difference. First operand 7470 states and 19829 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:19,854 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:20,009 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:20,168 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:20,349 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:20,568 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:20,740 INFO L93 Difference]: Finished difference Result 18404 states and 48253 transitions. [2021-07-09 16:54:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:20,769 INFO L225 Difference]: With dead ends: 18404 [2021-07-09 16:54:20,769 INFO L226 Difference]: Without dead ends: 18404 [2021-07-09 16:54:20,770 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1379.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18404 states. [2021-07-09 16:54:20,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18404 to 7502. [2021-07-09 16:54:20,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7500 states have (on average 2.6561333333333335) internal successors, (19921), 7501 states have internal predecessors, (19921), 0 states have call successors, (0), 0 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 16:54:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19921 transitions. [2021-07-09 16:54:20,951 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19921 transitions. Word has length 114 [2021-07-09 16:54:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:20,951 INFO L482 AbstractCegarLoop]: Abstraction has 7502 states and 19921 transitions. [2021-07-09 16:54:20,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19921 transitions. [2021-07-09 16:54:20,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:20,959 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:20,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:20,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 16:54:20,960 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:20,960 INFO L82 PathProgramCache]: Analyzing trace with hash -498008146, now seen corresponding path program 36 times [2021-07-09 16:54:20,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:20,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690585005] [2021-07-09 16:54:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:21,294 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 16:54:21,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:21,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690585005] [2021-07-09 16:54:21,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690585005] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:21,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:21,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:21,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387051366] [2021-07-09 16:54:21,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:21,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:21,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:21,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:21,296 INFO L87 Difference]: Start difference. First operand 7502 states and 19921 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:21,892 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:22,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:22,302 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:22,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:22,544 INFO L93 Difference]: Finished difference Result 19217 states and 50057 transitions. [2021-07-09 16:54:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:22,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:22,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:22,572 INFO L225 Difference]: With dead ends: 19217 [2021-07-09 16:54:22,572 INFO L226 Difference]: Without dead ends: 19217 [2021-07-09 16:54:22,572 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1093.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19217 states. [2021-07-09 16:54:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19217 to 7486. [2021-07-09 16:54:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7486 states, 7484 states have (on average 2.6556654195617315) internal successors, (19875), 7485 states have internal predecessors, (19875), 0 states have call successors, (0), 0 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 16:54:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7486 states to 7486 states and 19875 transitions. [2021-07-09 16:54:22,748 INFO L78 Accepts]: Start accepts. Automaton has 7486 states and 19875 transitions. Word has length 114 [2021-07-09 16:54:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:22,748 INFO L482 AbstractCegarLoop]: Abstraction has 7486 states and 19875 transitions. [2021-07-09 16:54:22,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:22,748 INFO L276 IsEmpty]: Start isEmpty. Operand 7486 states and 19875 transitions. [2021-07-09 16:54:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:22,756 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:22,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:22,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 16:54:22,757 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:22,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:22,757 INFO L82 PathProgramCache]: Analyzing trace with hash -772232944, now seen corresponding path program 37 times [2021-07-09 16:54:22,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:22,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87810002] [2021-07-09 16:54:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:23,140 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 16:54:23,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:23,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87810002] [2021-07-09 16:54:23,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87810002] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:23,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:23,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:23,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215611772] [2021-07-09 16:54:23,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:23,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:23,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:23,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:23,142 INFO L87 Difference]: Start difference. First operand 7486 states and 19875 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:23,791 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:23,949 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:24,111 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:24,298 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:24,501 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:24,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:24,673 INFO L93 Difference]: Finished difference Result 18543 states and 48470 transitions. [2021-07-09 16:54:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:24,704 INFO L225 Difference]: With dead ends: 18543 [2021-07-09 16:54:24,704 INFO L226 Difference]: Without dead ends: 18543 [2021-07-09 16:54:24,704 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1427.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:24,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18543 states. [2021-07-09 16:54:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18543 to 7502. [2021-07-09 16:54:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7500 states have (on average 2.6561333333333335) internal successors, (19921), 7501 states have internal predecessors, (19921), 0 states have call successors, (0), 0 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 16:54:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19921 transitions. [2021-07-09 16:54:24,888 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19921 transitions. Word has length 114 [2021-07-09 16:54:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:24,888 INFO L482 AbstractCegarLoop]: Abstraction has 7502 states and 19921 transitions. [2021-07-09 16:54:24,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19921 transitions. [2021-07-09 16:54:24,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:24,897 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:24,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:24,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-09 16:54:24,897 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:24,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:24,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1020779924, now seen corresponding path program 38 times [2021-07-09 16:54:24,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:24,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129959354] [2021-07-09 16:54:24,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:25,207 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 16:54:25,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:25,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129959354] [2021-07-09 16:54:25,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129959354] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:25,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:25,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:25,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457654163] [2021-07-09 16:54:25,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:25,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:25,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:25,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:25,209 INFO L87 Difference]: Start difference. First operand 7502 states and 19921 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:26,150 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:26,274 INFO L93 Difference]: Finished difference Result 15608 states and 40996 transitions. [2021-07-09 16:54:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:26,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:26,300 INFO L225 Difference]: With dead ends: 15608 [2021-07-09 16:54:26,300 INFO L226 Difference]: Without dead ends: 15608 [2021-07-09 16:54:26,300 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 997.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15608 states. [2021-07-09 16:54:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15608 to 7458. [2021-07-09 16:54:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7456 states have (on average 2.653835836909871) internal successors, (19787), 7457 states have internal predecessors, (19787), 0 states have call successors, (0), 0 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 16:54:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 19787 transitions. [2021-07-09 16:54:26,524 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 19787 transitions. Word has length 114 [2021-07-09 16:54:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:26,525 INFO L482 AbstractCegarLoop]: Abstraction has 7458 states and 19787 transitions. [2021-07-09 16:54:26,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 19787 transitions. [2021-07-09 16:54:26,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:26,533 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:26,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:26,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-09 16:54:26,534 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:26,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:26,534 INFO L82 PathProgramCache]: Analyzing trace with hash -140431474, now seen corresponding path program 39 times [2021-07-09 16:54:26,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:26,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122171829] [2021-07-09 16:54:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:26,820 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 16:54:26,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:26,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122171829] [2021-07-09 16:54:26,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122171829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:26,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:26,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:26,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386743279] [2021-07-09 16:54:26,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:26,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:26,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:26,821 INFO L87 Difference]: Start difference. First operand 7458 states and 19787 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:27,459 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:27,618 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:27,766 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:27,903 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:28,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:28,032 INFO L93 Difference]: Finished difference Result 14164 states and 37423 transitions. [2021-07-09 16:54:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:28,033 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:28,058 INFO L225 Difference]: With dead ends: 14164 [2021-07-09 16:54:28,058 INFO L226 Difference]: Without dead ends: 14164 [2021-07-09 16:54:28,058 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1119.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14164 states. [2021-07-09 16:54:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14164 to 7518. [2021-07-09 16:54:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7516 states have (on average 2.6558009579563597) internal successors, (19961), 7517 states have internal predecessors, (19961), 0 states have call successors, (0), 0 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 16:54:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19961 transitions. [2021-07-09 16:54:28,234 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19961 transitions. Word has length 114 [2021-07-09 16:54:28,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:28,234 INFO L482 AbstractCegarLoop]: Abstraction has 7518 states and 19961 transitions. [2021-07-09 16:54:28,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:28,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19961 transitions. [2021-07-09 16:54:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:28,244 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:28,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:28,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-09 16:54:28,244 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:28,245 INFO L82 PathProgramCache]: Analyzing trace with hash 2069156876, now seen corresponding path program 40 times [2021-07-09 16:54:28,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:28,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859011592] [2021-07-09 16:54:28,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:28,573 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 16:54:28,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:28,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859011592] [2021-07-09 16:54:28,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859011592] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:28,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:28,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:28,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078110085] [2021-07-09 16:54:28,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:28,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:28,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:28,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:28,574 INFO L87 Difference]: Start difference. First operand 7518 states and 19961 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:29,402 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:29,568 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:29,736 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:29,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:29,880 INFO L93 Difference]: Finished difference Result 14977 states and 39227 transitions. [2021-07-09 16:54:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:29,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:29,909 INFO L225 Difference]: With dead ends: 14977 [2021-07-09 16:54:29,909 INFO L226 Difference]: Without dead ends: 14977 [2021-07-09 16:54:29,910 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1205.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14977 states. [2021-07-09 16:54:30,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14977 to 7502. [2021-07-09 16:54:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7500 states have (on average 2.6553333333333335) internal successors, (19915), 7501 states have internal predecessors, (19915), 0 states have call successors, (0), 0 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 16:54:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19915 transitions. [2021-07-09 16:54:30,095 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19915 transitions. Word has length 114 [2021-07-09 16:54:30,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:30,096 INFO L482 AbstractCegarLoop]: Abstraction has 7502 states and 19915 transitions. [2021-07-09 16:54:30,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19915 transitions. [2021-07-09 16:54:30,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:30,106 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:30,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:30,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-09 16:54:30,106 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:30,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1794932078, now seen corresponding path program 41 times [2021-07-09 16:54:30,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:30,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962789804] [2021-07-09 16:54:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:30,443 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 16:54:30,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:30,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962789804] [2021-07-09 16:54:30,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962789804] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:30,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:30,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:30,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662718510] [2021-07-09 16:54:30,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:30,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:30,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:30,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:30,445 INFO L87 Difference]: Start difference. First operand 7502 states and 19915 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:31,130 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:31,286 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:31,451 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:31,637 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:31,834 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:31,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:31,998 INFO L93 Difference]: Finished difference Result 18090 states and 47177 transitions. [2021-07-09 16:54:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:31,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:31,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:32,024 INFO L225 Difference]: With dead ends: 18090 [2021-07-09 16:54:32,024 INFO L226 Difference]: Without dead ends: 18090 [2021-07-09 16:54:32,025 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1412.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18090 states. [2021-07-09 16:54:32,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18090 to 7518. [2021-07-09 16:54:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7516 states have (on average 2.6558009579563597) internal successors, (19961), 7517 states have internal predecessors, (19961), 0 states have call successors, (0), 0 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 16:54:32,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19961 transitions. [2021-07-09 16:54:32,191 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19961 transitions. Word has length 114 [2021-07-09 16:54:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:32,191 INFO L482 AbstractCegarLoop]: Abstraction has 7518 states and 19961 transitions. [2021-07-09 16:54:32,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19961 transitions. [2021-07-09 16:54:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:32,200 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:32,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:32,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-09 16:54:32,201 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:32,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1546385098, now seen corresponding path program 42 times [2021-07-09 16:54:32,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:32,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989485689] [2021-07-09 16:54:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:32,629 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 16:54:32,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:32,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989485689] [2021-07-09 16:54:32,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989485689] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:32,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:32,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:32,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513077268] [2021-07-09 16:54:32,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:32,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:32,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:32,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:32,636 INFO L87 Difference]: Start difference. First operand 7518 states and 19961 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:33,414 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:33,578 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:33,753 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:33,951 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:34,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:34,086 INFO L93 Difference]: Finished difference Result 15155 states and 39703 transitions. [2021-07-09 16:54:34,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:34,087 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:34,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:34,107 INFO L225 Difference]: With dead ends: 15155 [2021-07-09 16:54:34,108 INFO L226 Difference]: Without dead ends: 15155 [2021-07-09 16:54:34,108 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1361.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:34,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15155 states. [2021-07-09 16:54:34,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15155 to 7486. [2021-07-09 16:54:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7486 states, 7484 states have (on average 2.6548637092463925) internal successors, (19869), 7485 states have internal predecessors, (19869), 0 states have call successors, (0), 0 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 16:54:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7486 states to 7486 states and 19869 transitions. [2021-07-09 16:54:34,249 INFO L78 Accepts]: Start accepts. Automaton has 7486 states and 19869 transitions. Word has length 114 [2021-07-09 16:54:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:34,249 INFO L482 AbstractCegarLoop]: Abstraction has 7486 states and 19869 transitions. [2021-07-09 16:54:34,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7486 states and 19869 transitions. [2021-07-09 16:54:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:34,265 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:34,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:34,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-09 16:54:34,266 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:34,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:34,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1270119412, now seen corresponding path program 43 times [2021-07-09 16:54:34,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:34,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281333696] [2021-07-09 16:54:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:34,734 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 16:54:34,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:34,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281333696] [2021-07-09 16:54:34,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281333696] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:34,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:34,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:34,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920966759] [2021-07-09 16:54:34,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:34,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:34,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:34,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:34,736 INFO L87 Difference]: Start difference. First operand 7486 states and 19869 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:35,367 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:35,523 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:35,744 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:35,932 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:36,138 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:36,291 INFO L93 Difference]: Finished difference Result 14287 states and 37594 transitions. [2021-07-09 16:54:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:36,291 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:36,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:36,313 INFO L225 Difference]: With dead ends: 14287 [2021-07-09 16:54:36,313 INFO L226 Difference]: Without dead ends: 14287 [2021-07-09 16:54:36,313 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1467.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14287 states. [2021-07-09 16:54:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14287 to 7530. [2021-07-09 16:54:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7528 states have (on average 2.6563496280552603) internal successors, (19997), 7529 states have internal predecessors, (19997), 0 states have call successors, (0), 0 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 16:54:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19997 transitions. [2021-07-09 16:54:36,450 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19997 transitions. Word has length 114 [2021-07-09 16:54:36,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:36,451 INFO L482 AbstractCegarLoop]: Abstraction has 7530 states and 19997 transitions. [2021-07-09 16:54:36,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19997 transitions. [2021-07-09 16:54:36,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:36,459 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:36,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:36,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-09 16:54:36,461 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:36,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:36,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1518666392, now seen corresponding path program 44 times [2021-07-09 16:54:36,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:36,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497828400] [2021-07-09 16:54:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:36,889 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 16:54:36,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:36,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497828400] [2021-07-09 16:54:36,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497828400] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:36,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:36,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:36,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931477591] [2021-07-09 16:54:36,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:36,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:36,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:36,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:36,891 INFO L87 Difference]: Start difference. First operand 7530 states and 19997 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:37,661 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:37,829 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:38,010 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:38,268 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:38,428 INFO L93 Difference]: Finished difference Result 14127 states and 37192 transitions. [2021-07-09 16:54:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:38,428 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:38,448 INFO L225 Difference]: With dead ends: 14127 [2021-07-09 16:54:38,448 INFO L226 Difference]: Without dead ends: 14127 [2021-07-09 16:54:38,449 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1443.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14127 states. [2021-07-09 16:54:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14127 to 7514. [2021-07-09 16:54:38,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7512 states have (on average 2.6558839190628327) internal successors, (19951), 7513 states have internal predecessors, (19951), 0 states have call successors, (0), 0 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 16:54:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 19951 transitions. [2021-07-09 16:54:38,587 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 19951 transitions. Word has length 114 [2021-07-09 16:54:38,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:38,587 INFO L482 AbstractCegarLoop]: Abstraction has 7514 states and 19951 transitions. [2021-07-09 16:54:38,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:38,588 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 19951 transitions. [2021-07-09 16:54:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:38,595 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:38,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:38,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-09 16:54:38,596 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:38,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1619483600, now seen corresponding path program 45 times [2021-07-09 16:54:38,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:38,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482308167] [2021-07-09 16:54:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:39,119 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 16:54:39,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:39,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482308167] [2021-07-09 16:54:39,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482308167] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:39,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:39,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:39,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550643791] [2021-07-09 16:54:39,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:39,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:39,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:39,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:39,120 INFO L87 Difference]: Start difference. First operand 7514 states and 19951 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:40,006 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:40,155 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:40,344 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:40,550 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:40,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:40,696 INFO L93 Difference]: Finished difference Result 11560 states and 30646 transitions. [2021-07-09 16:54:40,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:40,696 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:40,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:40,712 INFO L225 Difference]: With dead ends: 11560 [2021-07-09 16:54:40,712 INFO L226 Difference]: Without dead ends: 11560 [2021-07-09 16:54:40,712 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1538.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11560 states. [2021-07-09 16:54:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11560 to 7682. [2021-07-09 16:54:40,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7680 states have (on average 2.661848958333333) internal successors, (20443), 7681 states have internal predecessors, (20443), 0 states have call successors, (0), 0 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 16:54:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20443 transitions. [2021-07-09 16:54:40,897 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20443 transitions. Word has length 114 [2021-07-09 16:54:40,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:40,898 INFO L482 AbstractCegarLoop]: Abstraction has 7682 states and 20443 transitions. [2021-07-09 16:54:40,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:40,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20443 transitions. [2021-07-09 16:54:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:40,906 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:40,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:40,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-09 16:54:40,906 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:40,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:40,907 INFO L82 PathProgramCache]: Analyzing trace with hash -371423616, now seen corresponding path program 3 times [2021-07-09 16:54:40,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:40,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540221428] [2021-07-09 16:54:40,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:41,615 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 16:54:41,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:41,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540221428] [2021-07-09 16:54:41,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540221428] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:41,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:41,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-09 16:54:41,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152008534] [2021-07-09 16:54:41,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-09 16:54:41,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:41,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-09 16:54:41,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:54:41,617 INFO L87 Difference]: Start difference. First operand 7682 states and 20443 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:46,258 INFO L93 Difference]: Finished difference Result 12717 states and 33960 transitions. [2021-07-09 16:54:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-09 16:54:46,258 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:46,281 INFO L225 Difference]: With dead ends: 12717 [2021-07-09 16:54:46,282 INFO L226 Difference]: Without dead ends: 12717 [2021-07-09 16:54:46,283 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 3358.6ms TimeCoverageRelationStatistics Valid=1658, Invalid=5824, Unknown=0, NotChecked=0, Total=7482 [2021-07-09 16:54:46,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12717 states. [2021-07-09 16:54:46,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12717 to 10727. [2021-07-09 16:54:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 10725 states have (on average 2.70993006993007) internal successors, (29064), 10726 states have internal predecessors, (29064), 0 states have call successors, (0), 0 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 16:54:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 29064 transitions. [2021-07-09 16:54:46,476 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 29064 transitions. Word has length 114 [2021-07-09 16:54:46,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:46,476 INFO L482 AbstractCegarLoop]: Abstraction has 10727 states and 29064 transitions. [2021-07-09 16:54:46,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 29064 transitions. [2021-07-09 16:54:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:46,490 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:46,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:46,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-09 16:54:46,491 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:46,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:46,491 INFO L82 PathProgramCache]: Analyzing trace with hash 18507512, now seen corresponding path program 46 times [2021-07-09 16:54:46,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:46,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715907897] [2021-07-09 16:54:46,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:46,913 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 16:54:46,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:46,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715907897] [2021-07-09 16:54:46,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715907897] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:46,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:46,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:54:46,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397671976] [2021-07-09 16:54:46,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:54:46,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:46,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:54:46,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:54:46,914 INFO L87 Difference]: Start difference. First operand 10727 states and 29064 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:47,613 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-09 16:54:48,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:48,135 INFO L93 Difference]: Finished difference Result 12471 states and 32819 transitions. [2021-07-09 16:54:48,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:48,135 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:48,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:48,158 INFO L225 Difference]: With dead ends: 12471 [2021-07-09 16:54:48,158 INFO L226 Difference]: Without dead ends: 12471 [2021-07-09 16:54:48,159 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1035.6ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:54:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12471 states. [2021-07-09 16:54:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12471 to 10597. [2021-07-09 16:54:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10597 states, 10595 states have (on average 2.714676734308636) internal successors, (28762), 10596 states have internal predecessors, (28762), 0 states have call successors, (0), 0 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 16:54:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10597 states to 10597 states and 28762 transitions. [2021-07-09 16:54:48,371 INFO L78 Accepts]: Start accepts. Automaton has 10597 states and 28762 transitions. Word has length 114 [2021-07-09 16:54:48,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:48,371 INFO L482 AbstractCegarLoop]: Abstraction has 10597 states and 28762 transitions. [2021-07-09 16:54:48,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:48,372 INFO L276 IsEmpty]: Start isEmpty. Operand 10597 states and 28762 transitions. [2021-07-09 16:54:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:48,386 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:48,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:48,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-09 16:54:48,386 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:48,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:48,386 INFO L82 PathProgramCache]: Analyzing trace with hash -119525490, now seen corresponding path program 47 times [2021-07-09 16:54:48,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:48,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298138851] [2021-07-09 16:54:48,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:48,713 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 16:54:48,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:48,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298138851] [2021-07-09 16:54:48,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298138851] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:48,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:48,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:48,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211276474] [2021-07-09 16:54:48,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:48,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:48,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:48,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:48,714 INFO L87 Difference]: Start difference. First operand 10597 states and 28762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:49,341 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:49,495 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:49,685 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:49,864 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:50,072 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:50,296 INFO L93 Difference]: Finished difference Result 34714 states and 93221 transitions. [2021-07-09 16:54:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:50,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:50,359 INFO L225 Difference]: With dead ends: 34714 [2021-07-09 16:54:50,359 INFO L226 Difference]: Without dead ends: 34714 [2021-07-09 16:54:50,359 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1344.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34714 states. [2021-07-09 16:54:50,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34714 to 10765. [2021-07-09 16:54:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10765 states, 10763 states have (on average 2.7180154232091422) internal successors, (29254), 10764 states have internal predecessors, (29254), 0 states have call successors, (0), 0 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 16:54:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 29254 transitions. [2021-07-09 16:54:50,710 INFO L78 Accepts]: Start accepts. Automaton has 10765 states and 29254 transitions. Word has length 114 [2021-07-09 16:54:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:50,710 INFO L482 AbstractCegarLoop]: Abstraction has 10765 states and 29254 transitions. [2021-07-09 16:54:50,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 10765 states and 29254 transitions. [2021-07-09 16:54:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:50,722 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:50,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:50,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-09 16:54:50,722 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:50,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2090062860, now seen corresponding path program 48 times [2021-07-09 16:54:50,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:50,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240742673] [2021-07-09 16:54:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:51,222 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 16:54:51,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:51,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240742673] [2021-07-09 16:54:51,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240742673] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:51,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:51,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:51,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065938920] [2021-07-09 16:54:51,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:51,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:51,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:51,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:51,224 INFO L87 Difference]: Start difference. First operand 10765 states and 29254 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:51,917 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:52,070 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:54:52,274 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:52,480 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:52,697 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:52,925 INFO L93 Difference]: Finished difference Result 33904 states and 90323 transitions. [2021-07-09 16:54:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:52,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:52,979 INFO L225 Difference]: With dead ends: 33904 [2021-07-09 16:54:52,983 INFO L226 Difference]: Without dead ends: 33904 [2021-07-09 16:54:52,983 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1583.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33904 states. [2021-07-09 16:54:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33904 to 10737. [2021-07-09 16:54:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 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 16:54:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-09 16:54:53,294 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-09 16:54:53,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:53,294 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-09 16:54:53,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:53,294 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-09 16:54:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:53,305 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:53,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:53,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-09 16:54:53,306 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:53,306 INFO L82 PathProgramCache]: Analyzing trace with hash 450949486, now seen corresponding path program 49 times [2021-07-09 16:54:53,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:53,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098863746] [2021-07-09 16:54:53,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:53,764 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 16:54:53,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:53,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098863746] [2021-07-09 16:54:53,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098863746] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:53,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:53,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:53,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184123556] [2021-07-09 16:54:53,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:53,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:53,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:53,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:53,766 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:54,564 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:54:54,740 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:54,919 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:55,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:55,133 INFO L93 Difference]: Finished difference Result 29217 states and 77986 transitions. [2021-07-09 16:54:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:55,133 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:55,192 INFO L225 Difference]: With dead ends: 29217 [2021-07-09 16:54:55,192 INFO L226 Difference]: Without dead ends: 29217 [2021-07-09 16:54:55,192 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1253.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29217 states. [2021-07-09 16:54:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29217 to 10681. [2021-07-09 16:54:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10681 states, 10679 states have (on average 2.716359209663826) internal successors, (29008), 10680 states have internal predecessors, (29008), 0 states have call successors, (0), 0 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 16:54:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10681 states to 10681 states and 29008 transitions. [2021-07-09 16:54:55,477 INFO L78 Accepts]: Start accepts. Automaton has 10681 states and 29008 transitions. Word has length 114 [2021-07-09 16:54:55,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:55,477 INFO L482 AbstractCegarLoop]: Abstraction has 10681 states and 29008 transitions. [2021-07-09 16:54:55,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:55,477 INFO L276 IsEmpty]: Start isEmpty. Operand 10681 states and 29008 transitions. [2021-07-09 16:54:55,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:55,490 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:55,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:55,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-09 16:54:55,490 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:55,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:55,491 INFO L82 PathProgramCache]: Analyzing trace with hash 749350160, now seen corresponding path program 50 times [2021-07-09 16:54:55,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:55,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368328192] [2021-07-09 16:54:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:55,922 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 16:54:55,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:55,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368328192] [2021-07-09 16:54:55,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368328192] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:55,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:55,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:55,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392836694] [2021-07-09 16:54:55,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:55,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:55,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:55,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:55,923 INFO L87 Difference]: Start difference. First operand 10681 states and 29008 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:56,566 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:54:56,729 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:56,890 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:57,068 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:54:57,269 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:54:57,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:57,474 INFO L93 Difference]: Finished difference Result 28871 states and 77036 transitions. [2021-07-09 16:54:57,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:57,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:57,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:57,521 INFO L225 Difference]: With dead ends: 28871 [2021-07-09 16:54:57,521 INFO L226 Difference]: Without dead ends: 28871 [2021-07-09 16:54:57,522 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1369.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28871 states. [2021-07-09 16:54:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28871 to 10737. [2021-07-09 16:54:57,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 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 16:54:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-09 16:54:57,765 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-09 16:54:57,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:57,765 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-09 16:54:57,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-09 16:54:57,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:54:57,777 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:57,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:57,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-09 16:54:57,778 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:57,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1336028786, now seen corresponding path program 51 times [2021-07-09 16:54:57,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:57,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047869977] [2021-07-09 16:54:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:58,092 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 16:54:58,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:58,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047869977] [2021-07-09 16:54:58,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047869977] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:58,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:58,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:58,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944948638] [2021-07-09 16:54:58,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:58,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:58,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:58,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:58,093 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:54:58,889 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:54:59,051 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:54:59,243 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:54:59,440 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:54:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:59,652 INFO L93 Difference]: Finished difference Result 30247 states and 80239 transitions. [2021-07-09 16:54:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:54:59,652 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:54:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:59,696 INFO L225 Difference]: With dead ends: 30247 [2021-07-09 16:54:59,696 INFO L226 Difference]: Without dead ends: 30247 [2021-07-09 16:54:59,697 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1350.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30247 states. [2021-07-09 16:55:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30247 to 10709. [2021-07-09 16:55:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 10707 states have (on average 2.7169141683011113) internal successors, (29090), 10708 states have internal predecessors, (29090), 0 states have call successors, (0), 0 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 16:55:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 29090 transitions. [2021-07-09 16:55:00,078 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 29090 transitions. Word has length 114 [2021-07-09 16:55:00,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:00,078 INFO L482 AbstractCegarLoop]: Abstraction has 10709 states and 29090 transitions. [2021-07-09 16:55:00,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 29090 transitions. [2021-07-09 16:55:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:00,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:00,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:00,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-09 16:55:00,090 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:00,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:00,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1610253584, now seen corresponding path program 52 times [2021-07-09 16:55:00,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:00,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916750756] [2021-07-09 16:55:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:00,429 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 16:55:00,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:00,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916750756] [2021-07-09 16:55:00,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916750756] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:00,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:00,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:00,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136502756] [2021-07-09 16:55:00,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:00,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:00,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:00,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:00,430 INFO L87 Difference]: Start difference. First operand 10709 states and 29090 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:01,222 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:01,389 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:01,578 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:01,804 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:02,016 INFO L93 Difference]: Finished difference Result 29120 states and 77439 transitions. [2021-07-09 16:55:02,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:02,016 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:02,068 INFO L225 Difference]: With dead ends: 29120 [2021-07-09 16:55:02,068 INFO L226 Difference]: Without dead ends: 29120 [2021-07-09 16:55:02,069 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1396.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:02,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2021-07-09 16:55:02,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 10737. [2021-07-09 16:55:02,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 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 16:55:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-09 16:55:02,397 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-09 16:55:02,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:02,397 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-09 16:55:02,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-09 16:55:02,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:02,411 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:02,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:02,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-09 16:55:02,412 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:02,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:02,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1858800564, now seen corresponding path program 53 times [2021-07-09 16:55:02,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:02,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408218408] [2021-07-09 16:55:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:02,750 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 16:55:02,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:02,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408218408] [2021-07-09 16:55:02,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408218408] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:02,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:02,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:02,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23108356] [2021-07-09 16:55:02,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:02,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:02,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:02,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:02,751 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:03,436 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:03,604 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:03,798 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:04,017 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:04,235 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:04,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:04,418 INFO L93 Difference]: Finished difference Result 24326 states and 64931 transitions. [2021-07-09 16:55:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:04,455 INFO L225 Difference]: With dead ends: 24326 [2021-07-09 16:55:04,455 INFO L226 Difference]: Without dead ends: 24326 [2021-07-09 16:55:04,456 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1505.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:04,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24326 states. [2021-07-09 16:55:04,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24326 to 10625. [2021-07-09 16:55:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10625 states, 10623 states have (on average 2.7152405158618094) internal successors, (28844), 10624 states have internal predecessors, (28844), 0 states have call successors, (0), 0 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 16:55:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10625 states to 10625 states and 28844 transitions. [2021-07-09 16:55:04,798 INFO L78 Accepts]: Start accepts. Automaton has 10625 states and 28844 transitions. Word has length 114 [2021-07-09 16:55:04,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:04,799 INFO L482 AbstractCegarLoop]: Abstraction has 10625 states and 28844 transitions. [2021-07-09 16:55:04,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:04,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10625 states and 28844 transitions. [2021-07-09 16:55:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:04,811 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:04,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:04,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-09 16:55:04,811 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:04,812 INFO L82 PathProgramCache]: Analyzing trace with hash -214203728, now seen corresponding path program 54 times [2021-07-09 16:55:04,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:04,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991495786] [2021-07-09 16:55:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:05,174 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 16:55:05,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:05,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991495786] [2021-07-09 16:55:05,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991495786] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:05,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:05,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:05,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038464619] [2021-07-09 16:55:05,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:05,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:05,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:05,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:05,176 INFO L87 Difference]: Start difference. First operand 10625 states and 28844 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:05,872 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:06,026 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:06,212 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:06,405 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:06,609 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:06,796 INFO L93 Difference]: Finished difference Result 24685 states and 66345 transitions. [2021-07-09 16:55:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:06,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:06,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:06,839 INFO L225 Difference]: With dead ends: 24685 [2021-07-09 16:55:06,839 INFO L226 Difference]: Without dead ends: 24685 [2021-07-09 16:55:06,839 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1461.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24685 states. [2021-07-09 16:55:07,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24685 to 10737. [2021-07-09 16:55:07,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 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 16:55:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-09 16:55:07,107 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-09 16:55:07,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:07,107 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-09 16:55:07,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:07,107 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-09 16:55:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:07,122 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:07,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:07,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-07-09 16:55:07,123 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:07,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1995384622, now seen corresponding path program 55 times [2021-07-09 16:55:07,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:07,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163522842] [2021-07-09 16:55:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:07,498 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 16:55:07,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:07,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163522842] [2021-07-09 16:55:07,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163522842] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:07,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:07,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:07,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794167313] [2021-07-09 16:55:07,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:07,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:07,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:07,499 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:08,159 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:08,304 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:08,480 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:08,693 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:08,907 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:09,082 INFO L93 Difference]: Finished difference Result 23875 states and 63447 transitions. [2021-07-09 16:55:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:09,083 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:09,121 INFO L225 Difference]: With dead ends: 23875 [2021-07-09 16:55:09,121 INFO L226 Difference]: Without dead ends: 23875 [2021-07-09 16:55:09,121 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1450.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23875 states. [2021-07-09 16:55:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23875 to 10709. [2021-07-09 16:55:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 10707 states have (on average 2.7169141683011113) internal successors, (29090), 10708 states have internal predecessors, (29090), 0 states have call successors, (0), 0 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 16:55:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 29090 transitions. [2021-07-09 16:55:09,488 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 29090 transitions. Word has length 114 [2021-07-09 16:55:09,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:09,488 INFO L482 AbstractCegarLoop]: Abstraction has 10709 states and 29090 transitions. [2021-07-09 16:55:09,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 29090 transitions. [2021-07-09 16:55:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:09,503 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:09,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:09,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-07-09 16:55:09,503 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:09,504 INFO L82 PathProgramCache]: Analyzing trace with hash 356271248, now seen corresponding path program 56 times [2021-07-09 16:55:09,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:09,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556938158] [2021-07-09 16:55:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:09,872 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 16:55:09,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:09,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556938158] [2021-07-09 16:55:09,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556938158] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:09,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:09,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:09,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439163089] [2021-07-09 16:55:09,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:09,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:09,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:09,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:09,874 INFO L87 Difference]: Start difference. First operand 10709 states and 29090 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:10,555 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:10,710 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:10,871 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:11,092 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:11,317 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:11,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:11,511 INFO L93 Difference]: Finished difference Result 23845 states and 63549 transitions. [2021-07-09 16:55:11,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:11,512 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:11,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:11,552 INFO L225 Difference]: With dead ends: 23845 [2021-07-09 16:55:11,552 INFO L226 Difference]: Without dead ends: 23845 [2021-07-09 16:55:11,553 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1454.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23845 states. [2021-07-09 16:55:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23845 to 10653. [2021-07-09 16:55:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10653 states, 10651 states have (on average 2.7158013332081494) internal successors, (28926), 10652 states have internal predecessors, (28926), 0 states have call successors, (0), 0 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 16:55:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 28926 transitions. [2021-07-09 16:55:11,802 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 28926 transitions. Word has length 114 [2021-07-09 16:55:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:11,802 INFO L482 AbstractCegarLoop]: Abstraction has 10653 states and 28926 transitions. [2021-07-09 16:55:11,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 28926 transitions. [2021-07-09 16:55:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:11,813 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:11,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:11,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-07-09 16:55:11,814 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:11,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:11,814 INFO L82 PathProgramCache]: Analyzing trace with hash -22546066, now seen corresponding path program 57 times [2021-07-09 16:55:11,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:11,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369846279] [2021-07-09 16:55:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:12,186 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 16:55:12,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:12,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369846279] [2021-07-09 16:55:12,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369846279] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:12,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:12,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:12,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557936034] [2021-07-09 16:55:12,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:12,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:12,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:12,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:12,187 INFO L87 Difference]: Start difference. First operand 10653 states and 28926 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:12,882 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:13,026 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:55:13,196 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:13,416 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:13,635 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:13,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:13,785 INFO L93 Difference]: Finished difference Result 17860 states and 47816 transitions. [2021-07-09 16:55:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:13,814 INFO L225 Difference]: With dead ends: 17860 [2021-07-09 16:55:13,815 INFO L226 Difference]: Without dead ends: 17860 [2021-07-09 16:55:13,815 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1481.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:13,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17860 states. [2021-07-09 16:55:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17860 to 10609. [2021-07-09 16:55:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 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 16:55:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-07-09 16:55:14,158 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-07-09 16:55:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:14,158 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-07-09 16:55:14,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-07-09 16:55:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:14,170 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:14,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:14,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-07-09 16:55:14,171 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:14,171 INFO L82 PathProgramCache]: Analyzing trace with hash -72978352, now seen corresponding path program 58 times [2021-07-09 16:55:14,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:14,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219402288] [2021-07-09 16:55:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:14,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:14,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219402288] [2021-07-09 16:55:14,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219402288] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:14,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:14,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:14,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822532880] [2021-07-09 16:55:14,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:14,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:14,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:14,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:14,513 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:15,212 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:15,369 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:15,559 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:15,747 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:15,974 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:16,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:16,191 INFO L93 Difference]: Finished difference Result 31274 states and 83574 transitions. [2021-07-09 16:55:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:16,192 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:16,253 INFO L225 Difference]: With dead ends: 31274 [2021-07-09 16:55:16,253 INFO L226 Difference]: Without dead ends: 31274 [2021-07-09 16:55:16,254 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1457.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:16,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31274 states. [2021-07-09 16:55:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31274 to 10749. [2021-07-09 16:55:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10749 states, 10747 states have (on average 2.7177817065227505) internal successors, (29208), 10748 states have internal predecessors, (29208), 0 states have call successors, (0), 0 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 16:55:16,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10749 states to 10749 states and 29208 transitions. [2021-07-09 16:55:16,564 INFO L78 Accepts]: Start accepts. Automaton has 10749 states and 29208 transitions. Word has length 114 [2021-07-09 16:55:16,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:16,564 INFO L482 AbstractCegarLoop]: Abstraction has 10749 states and 29208 transitions. [2021-07-09 16:55:16,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 10749 states and 29208 transitions. [2021-07-09 16:55:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:16,580 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:16,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:16,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-07-09 16:55:16,580 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:16,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:16,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2136609998, now seen corresponding path program 59 times [2021-07-09 16:55:16,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:16,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245591026] [2021-07-09 16:55:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:16,950 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 16:55:16,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:16,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245591026] [2021-07-09 16:55:16,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245591026] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:16,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:16,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:16,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449907248] [2021-07-09 16:55:16,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:16,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:16,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:16,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:16,951 INFO L87 Difference]: Start difference. First operand 10749 states and 29208 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:17,692 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:17,845 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:18,043 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:18,246 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:18,452 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:18,686 INFO L93 Difference]: Finished difference Result 30464 states and 80676 transitions. [2021-07-09 16:55:18,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:18,748 INFO L225 Difference]: With dead ends: 30464 [2021-07-09 16:55:18,748 INFO L226 Difference]: Without dead ends: 30464 [2021-07-09 16:55:18,748 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1522.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30464 states. [2021-07-09 16:55:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30464 to 10721. [2021-07-09 16:55:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10721 states, 10719 states have (on average 2.7172310849892716) internal successors, (29126), 10720 states have internal predecessors, (29126), 0 states have call successors, (0), 0 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 16:55:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10721 states to 10721 states and 29126 transitions. [2021-07-09 16:55:19,046 INFO L78 Accepts]: Start accepts. Automaton has 10721 states and 29126 transitions. Word has length 114 [2021-07-09 16:55:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:19,046 INFO L482 AbstractCegarLoop]: Abstraction has 10721 states and 29126 transitions. [2021-07-09 16:55:19,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 10721 states and 29126 transitions. [2021-07-09 16:55:19,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:19,059 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:19,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:19,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-07-09 16:55:19,059 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:19,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:19,059 INFO L82 PathProgramCache]: Analyzing trace with hash 497496624, now seen corresponding path program 60 times [2021-07-09 16:55:19,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:19,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864089690] [2021-07-09 16:55:19,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:19,412 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 16:55:19,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:19,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864089690] [2021-07-09 16:55:19,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864089690] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:19,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:19,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:19,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235874587] [2021-07-09 16:55:19,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:19,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:19,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:19,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:19,413 INFO L87 Difference]: Start difference. First operand 10721 states and 29126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:20,104 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:20,264 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:20,433 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:20,651 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:20,875 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:21,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:21,084 INFO L93 Difference]: Finished difference Result 25777 states and 68339 transitions. [2021-07-09 16:55:21,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:21,085 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:21,127 INFO L225 Difference]: With dead ends: 25777 [2021-07-09 16:55:21,127 INFO L226 Difference]: Without dead ends: 25777 [2021-07-09 16:55:21,127 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1458.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:21,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25777 states. [2021-07-09 16:55:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25777 to 10665. [2021-07-09 16:55:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10665 states, 10663 states have (on average 2.7161211666510363) internal successors, (28962), 10664 states have internal predecessors, (28962), 0 states have call successors, (0), 0 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 16:55:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10665 states to 10665 states and 28962 transitions. [2021-07-09 16:55:21,381 INFO L78 Accepts]: Start accepts. Automaton has 10665 states and 28962 transitions. Word has length 114 [2021-07-09 16:55:21,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:21,381 INFO L482 AbstractCegarLoop]: Abstraction has 10665 states and 28962 transitions. [2021-07-09 16:55:21,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10665 states and 28962 transitions. [2021-07-09 16:55:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:21,393 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:21,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:21,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-07-09 16:55:21,393 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:21,393 INFO L82 PathProgramCache]: Analyzing trace with hash 795897298, now seen corresponding path program 61 times [2021-07-09 16:55:21,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:21,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137922182] [2021-07-09 16:55:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:21,846 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 16:55:21,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:21,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137922182] [2021-07-09 16:55:21,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137922182] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:21,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:21,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:21,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164517933] [2021-07-09 16:55:21,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:21,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:21,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:21,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:21,848 INFO L87 Difference]: Start difference. First operand 10665 states and 28962 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:22,551 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:22,717 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:22,891 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:23,080 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:23,282 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:23,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:23,504 INFO L93 Difference]: Finished difference Result 25431 states and 67389 transitions. [2021-07-09 16:55:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:23,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:23,552 INFO L225 Difference]: With dead ends: 25431 [2021-07-09 16:55:23,552 INFO L226 Difference]: Without dead ends: 25431 [2021-07-09 16:55:23,552 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1541.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2021-07-09 16:55:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 10707. [2021-07-09 16:55:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10707 states, 10705 states have (on average 2.7169546940681926) internal successors, (29085), 10706 states have internal predecessors, (29085), 0 states have call successors, (0), 0 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 16:55:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10707 states to 10707 states and 29085 transitions. [2021-07-09 16:55:23,798 INFO L78 Accepts]: Start accepts. Automaton has 10707 states and 29085 transitions. Word has length 114 [2021-07-09 16:55:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:23,799 INFO L482 AbstractCegarLoop]: Abstraction has 10707 states and 29085 transitions. [2021-07-09 16:55:23,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:23,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10707 states and 29085 transitions. [2021-07-09 16:55:23,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:23,810 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:23,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:23,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-07-09 16:55:23,811 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:23,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1289481648, now seen corresponding path program 62 times [2021-07-09 16:55:23,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:23,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767949257] [2021-07-09 16:55:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:24,165 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 16:55:24,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:24,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767949257] [2021-07-09 16:55:24,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767949257] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:24,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:24,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:24,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157464942] [2021-07-09 16:55:24,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:24,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:24,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:24,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:24,166 INFO L87 Difference]: Start difference. First operand 10707 states and 29085 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:24,841 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:25,023 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:25,193 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:25,402 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:25,618 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:25,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:25,831 INFO L93 Difference]: Finished difference Result 26807 states and 70592 transitions. [2021-07-09 16:55:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:25,873 INFO L225 Difference]: With dead ends: 26807 [2021-07-09 16:55:25,873 INFO L226 Difference]: Without dead ends: 26807 [2021-07-09 16:55:25,873 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1468.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:25,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26807 states. [2021-07-09 16:55:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26807 to 10679. [2021-07-09 16:55:26,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10679 states, 10677 states have (on average 2.7163997377540507) internal successors, (29003), 10678 states have internal predecessors, (29003), 0 states have call successors, (0), 0 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 16:55:26,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10679 states to 10679 states and 29003 transitions. [2021-07-09 16:55:26,143 INFO L78 Accepts]: Start accepts. Automaton has 10679 states and 29003 transitions. Word has length 114 [2021-07-09 16:55:26,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:26,143 INFO L482 AbstractCegarLoop]: Abstraction has 10679 states and 29003 transitions. [2021-07-09 16:55:26,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10679 states and 29003 transitions. [2021-07-09 16:55:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:26,157 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:26,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:26,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-07-09 16:55:26,157 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:26,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:26,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1563706446, now seen corresponding path program 63 times [2021-07-09 16:55:26,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:26,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268398406] [2021-07-09 16:55:26,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:26,489 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-07-09 16:55:26,691 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 16:55:26,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:26,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268398406] [2021-07-09 16:55:26,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268398406] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:26,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:26,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:26,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628957488] [2021-07-09 16:55:26,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:26,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:26,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:26,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:26,692 INFO L87 Difference]: Start difference. First operand 10679 states and 29003 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:27,325 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:27,491 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:27,645 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:27,824 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:28,002 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:28,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:28,209 INFO L93 Difference]: Finished difference Result 25680 states and 67792 transitions. [2021-07-09 16:55:28,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:28,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:28,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:28,252 INFO L225 Difference]: With dead ends: 25680 [2021-07-09 16:55:28,253 INFO L226 Difference]: Without dead ends: 25680 [2021-07-09 16:55:28,253 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1519.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25680 states. [2021-07-09 16:55:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25680 to 10693. [2021-07-09 16:55:28,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10693 states, 10691 states have (on average 2.716677579272285) internal successors, (29044), 10692 states have internal predecessors, (29044), 0 states have call successors, (0), 0 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 16:55:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10693 states to 10693 states and 29044 transitions. [2021-07-09 16:55:28,514 INFO L78 Accepts]: Start accepts. Automaton has 10693 states and 29044 transitions. Word has length 114 [2021-07-09 16:55:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:28,514 INFO L482 AbstractCegarLoop]: Abstraction has 10693 states and 29044 transitions. [2021-07-09 16:55:28,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 10693 states and 29044 transitions. [2021-07-09 16:55:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:28,526 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:28,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:28,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-07-09 16:55:28,527 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:28,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1812253426, now seen corresponding path program 64 times [2021-07-09 16:55:28,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:28,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718468305] [2021-07-09 16:55:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:28,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:28,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718468305] [2021-07-09 16:55:28,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718468305] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:28,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:28,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:28,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755179365] [2021-07-09 16:55:28,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:28,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:28,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:28,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:28,852 INFO L87 Difference]: Start difference. First operand 10693 states and 29044 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:29,455 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-09 16:55:29,589 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:29,753 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:29,923 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:30,110 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:30,322 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:30,484 INFO L93 Difference]: Finished difference Result 20886 states and 55284 transitions. [2021-07-09 16:55:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:30,484 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:30,516 INFO L225 Difference]: With dead ends: 20886 [2021-07-09 16:55:30,516 INFO L226 Difference]: Without dead ends: 20886 [2021-07-09 16:55:30,517 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1500.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:30,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20886 states. [2021-07-09 16:55:30,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20886 to 10497. [2021-07-09 16:55:30,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10497 states, 10495 states have (on average 2.712720343020486) internal successors, (28470), 10496 states have internal predecessors, (28470), 0 states have call successors, (0), 0 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 16:55:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10497 states to 10497 states and 28470 transitions. [2021-07-09 16:55:30,732 INFO L78 Accepts]: Start accepts. Automaton has 10497 states and 28470 transitions. Word has length 114 [2021-07-09 16:55:30,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:30,733 INFO L482 AbstractCegarLoop]: Abstraction has 10497 states and 28470 transitions. [2021-07-09 16:55:30,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand 10497 states and 28470 transitions. [2021-07-09 16:55:30,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:30,745 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:30,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:30,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-07-09 16:55:30,746 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:30,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:30,746 INFO L82 PathProgramCache]: Analyzing trace with hash -167656590, now seen corresponding path program 65 times [2021-07-09 16:55:30,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:30,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191319455] [2021-07-09 16:55:30,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:31,097 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 16:55:31,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:31,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191319455] [2021-07-09 16:55:31,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191319455] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:31,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:31,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:31,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848970513] [2021-07-09 16:55:31,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:31,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:31,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:31,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:31,098 INFO L87 Difference]: Start difference. First operand 10497 states and 28470 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:31,773 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:31,925 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:32,121 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:32,313 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:32,528 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:32,753 INFO L93 Difference]: Finished difference Result 29779 states and 79246 transitions. [2021-07-09 16:55:32,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:32,754 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:32,806 INFO L225 Difference]: With dead ends: 29779 [2021-07-09 16:55:32,806 INFO L226 Difference]: Without dead ends: 29779 [2021-07-09 16:55:32,807 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1429.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29779 states. [2021-07-09 16:55:33,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29779 to 10609. [2021-07-09 16:55:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 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 16:55:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-07-09 16:55:33,100 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-07-09 16:55:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:33,101 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-07-09 16:55:33,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-07-09 16:55:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:33,114 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:33,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:33,114 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-07-09 16:55:33,114 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:33,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:33,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2041931760, now seen corresponding path program 66 times [2021-07-09 16:55:33,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:33,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817474305] [2021-07-09 16:55:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:33,485 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 16:55:33,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:33,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817474305] [2021-07-09 16:55:33,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817474305] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:33,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:33,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:33,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65954070] [2021-07-09 16:55:33,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:33,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:33,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:33,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:33,486 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:34,091 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-09 16:55:34,220 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:34,371 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:34,563 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:34,762 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:34,967 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:35,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:35,169 INFO L93 Difference]: Finished difference Result 28969 states and 76348 transitions. [2021-07-09 16:55:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:35,169 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:35,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:35,218 INFO L225 Difference]: With dead ends: 28969 [2021-07-09 16:55:35,218 INFO L226 Difference]: Without dead ends: 28969 [2021-07-09 16:55:35,219 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1524.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:35,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28969 states. [2021-07-09 16:55:35,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28969 to 10581. [2021-07-09 16:55:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10581 states, 10579 states have (on average 2.7144342565459874) internal successors, (28716), 10580 states have internal predecessors, (28716), 0 states have call successors, (0), 0 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 16:55:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10581 states to 10581 states and 28716 transitions. [2021-07-09 16:55:35,520 INFO L78 Accepts]: Start accepts. Automaton has 10581 states and 28716 transitions. Word has length 114 [2021-07-09 16:55:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:35,520 INFO L482 AbstractCegarLoop]: Abstraction has 10581 states and 28716 transitions. [2021-07-09 16:55:35,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 10581 states and 28716 transitions. [2021-07-09 16:55:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:35,534 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:35,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:35,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-07-09 16:55:35,534 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:35,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:35,534 INFO L82 PathProgramCache]: Analyzing trace with hash 402818386, now seen corresponding path program 67 times [2021-07-09 16:55:35,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:35,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934992053] [2021-07-09 16:55:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:35,920 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 16:55:35,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:35,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934992053] [2021-07-09 16:55:35,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934992053] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:35,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:35,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:35,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131513957] [2021-07-09 16:55:35,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:35,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:35,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:35,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:35,921 INFO L87 Difference]: Start difference. First operand 10581 states and 28716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:36,611 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:36,769 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:36,960 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:37,196 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:37,416 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:37,633 INFO L93 Difference]: Finished difference Result 28939 states and 76450 transitions. [2021-07-09 16:55:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:37,679 INFO L225 Difference]: With dead ends: 28939 [2021-07-09 16:55:37,680 INFO L226 Difference]: Without dead ends: 28939 [2021-07-09 16:55:37,680 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1502.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28939 states. [2021-07-09 16:55:37,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28939 to 10525. [2021-07-09 16:55:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 10523 states have (on average 2.7132946878266653) internal successors, (28552), 10524 states have internal predecessors, (28552), 0 states have call successors, (0), 0 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 16:55:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 28552 transitions. [2021-07-09 16:55:37,965 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 28552 transitions. Word has length 114 [2021-07-09 16:55:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:37,965 INFO L482 AbstractCegarLoop]: Abstraction has 10525 states and 28552 transitions. [2021-07-09 16:55:37,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 28552 transitions. [2021-07-09 16:55:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:37,978 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:37,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:37,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-07-09 16:55:37,979 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:37,979 INFO L82 PathProgramCache]: Analyzing trace with hash 24001072, now seen corresponding path program 68 times [2021-07-09 16:55:37,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:37,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274922550] [2021-07-09 16:55:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:38,361 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 16:55:38,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:38,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274922550] [2021-07-09 16:55:38,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274922550] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:38,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:38,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:38,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154266096] [2021-07-09 16:55:38,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:38,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:38,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:38,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:38,362 INFO L87 Difference]: Start difference. First operand 10525 states and 28552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:38,752 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-07-09 16:55:39,104 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:39,247 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:55:39,422 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:39,642 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:39,868 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:40,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:40,060 INFO L93 Difference]: Finished difference Result 22954 states and 60717 transitions. [2021-07-09 16:55:40,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:40,060 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:40,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:40,099 INFO L225 Difference]: With dead ends: 22954 [2021-07-09 16:55:40,100 INFO L226 Difference]: Without dead ends: 22954 [2021-07-09 16:55:40,100 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1553.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2021-07-09 16:55:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 10469. [2021-07-09 16:55:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 10467 states have (on average 2.712142925384542) internal successors, (28388), 10468 states have internal predecessors, (28388), 0 states have call successors, (0), 0 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 16:55:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 28388 transitions. [2021-07-09 16:55:40,346 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 28388 transitions. Word has length 114 [2021-07-09 16:55:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:40,346 INFO L482 AbstractCegarLoop]: Abstraction has 10469 states and 28388 transitions. [2021-07-09 16:55:40,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:40,346 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 28388 transitions. [2021-07-09 16:55:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:40,357 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:40,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:40,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-07-09 16:55:40,358 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:40,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:40,358 INFO L82 PathProgramCache]: Analyzing trace with hash -573558898, now seen corresponding path program 69 times [2021-07-09 16:55:40,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:40,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84370559] [2021-07-09 16:55:40,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:40,734 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 16:55:40,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:40,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84370559] [2021-07-09 16:55:40,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84370559] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:40,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:40,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:40,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424817838] [2021-07-09 16:55:40,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:40,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:40,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:40,736 INFO L87 Difference]: Start difference. First operand 10469 states and 28388 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:41,482 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:41,654 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:41,824 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:42,008 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:42,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:42,181 INFO L93 Difference]: Finished difference Result 21217 states and 56616 transitions. [2021-07-09 16:55:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:42,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:42,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:42,217 INFO L225 Difference]: With dead ends: 21217 [2021-07-09 16:55:42,217 INFO L226 Difference]: Without dead ends: 21217 [2021-07-09 16:55:42,217 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1345.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21217 states. [2021-07-09 16:55:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21217 to 10539. [2021-07-09 16:55:42,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10539 states, 10537 states have (on average 2.7135807155736926) internal successors, (28593), 10538 states have internal predecessors, (28593), 0 states have call successors, (0), 0 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 16:55:42,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10539 states to 10539 states and 28593 transitions. [2021-07-09 16:55:42,474 INFO L78 Accepts]: Start accepts. Automaton has 10539 states and 28593 transitions. Word has length 114 [2021-07-09 16:55:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:42,475 INFO L482 AbstractCegarLoop]: Abstraction has 10539 states and 28593 transitions. [2021-07-09 16:55:42,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:42,475 INFO L276 IsEmpty]: Start isEmpty. Operand 10539 states and 28593 transitions. [2021-07-09 16:55:42,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:42,491 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:42,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:42,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-07-09 16:55:42,491 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:42,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:42,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1636029452, now seen corresponding path program 70 times [2021-07-09 16:55:42,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:42,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925492392] [2021-07-09 16:55:42,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:42,915 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 16:55:42,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:42,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925492392] [2021-07-09 16:55:42,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925492392] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:42,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:42,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:42,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390913750] [2021-07-09 16:55:42,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:42,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:42,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:42,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:42,916 INFO L87 Difference]: Start difference. First operand 10539 states and 28593 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:43,515 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-07-09 16:55:43,654 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:43,806 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:44,004 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:44,192 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:44,406 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:44,588 INFO L93 Difference]: Finished difference Result 20407 states and 53718 transitions. [2021-07-09 16:55:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:44,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:44,621 INFO L225 Difference]: With dead ends: 20407 [2021-07-09 16:55:44,621 INFO L226 Difference]: Without dead ends: 20407 [2021-07-09 16:55:44,621 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1558.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20407 states. [2021-07-09 16:55:44,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20407 to 10413. [2021-07-09 16:55:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10413 states, 10411 states have (on average 2.710978772452214) internal successors, (28224), 10412 states have internal predecessors, (28224), 0 states have call successors, (0), 0 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 16:55:44,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10413 states to 10413 states and 28224 transitions. [2021-07-09 16:55:44,879 INFO L78 Accepts]: Start accepts. Automaton has 10413 states and 28224 transitions. Word has length 114 [2021-07-09 16:55:44,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:44,880 INFO L482 AbstractCegarLoop]: Abstraction has 10413 states and 28224 transitions. [2021-07-09 16:55:44,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 10413 states and 28224 transitions. [2021-07-09 16:55:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:44,896 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:44,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:44,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-07-09 16:55:44,896 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:44,896 INFO L82 PathProgramCache]: Analyzing trace with hash -3083922, now seen corresponding path program 71 times [2021-07-09 16:55:44,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:44,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782430611] [2021-07-09 16:55:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:45,323 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 16:55:45,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:45,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782430611] [2021-07-09 16:55:45,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782430611] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:45,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:45,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:45,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234293984] [2021-07-09 16:55:45,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:45,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:45,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:45,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:45,324 INFO L87 Difference]: Start difference. First operand 10413 states and 28224 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:45,999 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:46,155 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:46,319 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:46,540 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:46,737 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:46,897 INFO L93 Difference]: Finished difference Result 20377 states and 53820 transitions. [2021-07-09 16:55:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:46,933 INFO L225 Difference]: With dead ends: 20377 [2021-07-09 16:55:46,934 INFO L226 Difference]: Without dead ends: 20377 [2021-07-09 16:55:46,934 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1495.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20377 states. [2021-07-09 16:55:47,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20377 to 10357. [2021-07-09 16:55:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 10355 states have (on average 2.7098020280057944) internal successors, (28060), 10356 states have internal predecessors, (28060), 0 states have call successors, (0), 0 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 16:55:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 28060 transitions. [2021-07-09 16:55:47,159 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 28060 transitions. Word has length 114 [2021-07-09 16:55:47,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:47,159 INFO L482 AbstractCegarLoop]: Abstraction has 10357 states and 28060 transitions. [2021-07-09 16:55:47,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:47,159 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 28060 transitions. [2021-07-09 16:55:47,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:47,170 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:47,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:47,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-07-09 16:55:47,171 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:47,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:47,171 INFO L82 PathProgramCache]: Analyzing trace with hash -381901236, now seen corresponding path program 72 times [2021-07-09 16:55:47,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:47,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273442948] [2021-07-09 16:55:47,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:47,544 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 16:55:47,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:47,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273442948] [2021-07-09 16:55:47,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273442948] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:47,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:47,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:47,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044739150] [2021-07-09 16:55:47,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:47,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:47,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:47,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:47,545 INFO L87 Difference]: Start difference. First operand 10357 states and 28060 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:48,205 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:55:48,421 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:55:48,581 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:48,801 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:49,021 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:49,193 INFO L93 Difference]: Finished difference Result 20881 states and 55296 transitions. [2021-07-09 16:55:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:49,226 INFO L225 Difference]: With dead ends: 20881 [2021-07-09 16:55:49,226 INFO L226 Difference]: Without dead ends: 20881 [2021-07-09 16:55:49,226 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1514.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20881 states. [2021-07-09 16:55:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20881 to 10329. [2021-07-09 16:55:49,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10329 states, 10327 states have (on average 2.7092088699525516) internal successors, (27978), 10328 states have internal predecessors, (27978), 0 states have call successors, (0), 0 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 16:55:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10329 states to 10329 states and 27978 transitions. [2021-07-09 16:55:49,450 INFO L78 Accepts]: Start accepts. Automaton has 10329 states and 27978 transitions. Word has length 114 [2021-07-09 16:55:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:49,450 INFO L482 AbstractCegarLoop]: Abstraction has 10329 states and 27978 transitions. [2021-07-09 16:55:49,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:49,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10329 states and 27978 transitions. [2021-07-09 16:55:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:49,462 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:49,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:49,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-07-09 16:55:49,462 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:49,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:49,463 INFO L82 PathProgramCache]: Analyzing trace with hash -41656878, now seen corresponding path program 73 times [2021-07-09 16:55:49,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:49,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254980839] [2021-07-09 16:55:49,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:49,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:49,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254980839] [2021-07-09 16:55:49,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254980839] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:49,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:49,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:49,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046646123] [2021-07-09 16:55:49,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:49,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:49,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:49,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:49,853 INFO L87 Difference]: Start difference. First operand 10329 states and 27978 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:50,544 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-07-09 16:55:50,685 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:55:50,842 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:51,054 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:51,272 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:51,411 INFO L93 Difference]: Finished difference Result 14275 states and 37776 transitions. [2021-07-09 16:55:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:51,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:51,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:51,432 INFO L225 Difference]: With dead ends: 14275 [2021-07-09 16:55:51,433 INFO L226 Difference]: Without dead ends: 14275 [2021-07-09 16:55:51,433 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1480.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2021-07-09 16:55:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 8647. [2021-07-09 16:55:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8647 states, 8645 states have (on average 2.6884904569115093) internal successors, (23242), 8646 states have internal predecessors, (23242), 0 states have call successors, (0), 0 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 16:55:51,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8647 states to 8647 states and 23242 transitions. [2021-07-09 16:55:51,574 INFO L78 Accepts]: Start accepts. Automaton has 8647 states and 23242 transitions. Word has length 114 [2021-07-09 16:55:51,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:51,574 INFO L482 AbstractCegarLoop]: Abstraction has 8647 states and 23242 transitions. [2021-07-09 16:55:51,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:51,574 INFO L276 IsEmpty]: Start isEmpty. Operand 8647 states and 23242 transitions. [2021-07-09 16:55:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:51,583 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:51,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:51,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-07-09 16:55:51,583 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:51,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1413436722, now seen corresponding path program 74 times [2021-07-09 16:55:51,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:51,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719614412] [2021-07-09 16:55:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:51,944 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 16:55:51,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:51,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719614412] [2021-07-09 16:55:51,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719614412] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:51,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:51,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:51,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357023958] [2021-07-09 16:55:51,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:51,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:51,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:51,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:51,946 INFO L87 Difference]: Start difference. First operand 8647 states and 23242 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:52,625 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:52,776 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:52,963 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:53,149 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:53,403 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:53,578 INFO L93 Difference]: Finished difference Result 24231 states and 64470 transitions. [2021-07-09 16:55:53,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:53,578 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:53,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:53,615 INFO L225 Difference]: With dead ends: 24231 [2021-07-09 16:55:53,615 INFO L226 Difference]: Without dead ends: 24231 [2021-07-09 16:55:53,615 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1473.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24231 states. [2021-07-09 16:55:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24231 to 8869. [2021-07-09 16:55:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.6932446148641027) internal successors, (23881), 8868 states have internal predecessors, (23881), 0 states have call successors, (0), 0 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 16:55:53,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23881 transitions. [2021-07-09 16:55:53,832 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23881 transitions. Word has length 114 [2021-07-09 16:55:53,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:53,833 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23881 transitions. [2021-07-09 16:55:53,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23881 transitions. [2021-07-09 16:55:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:53,841 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:53,842 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:53,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-07-09 16:55:53,842 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:53,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:53,842 INFO L82 PathProgramCache]: Analyzing trace with hash 796151628, now seen corresponding path program 75 times [2021-07-09 16:55:53,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:53,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516634094] [2021-07-09 16:55:53,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:54,235 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 16:55:54,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:54,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516634094] [2021-07-09 16:55:54,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516634094] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:54,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:54,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:54,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113718446] [2021-07-09 16:55:54,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:54,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:54,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:54,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:54,236 INFO L87 Difference]: Start difference. First operand 8869 states and 23881 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:55,036 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:55,234 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:55,442 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:55:55,658 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:55:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:55,845 INFO L93 Difference]: Finished difference Result 23809 states and 62956 transitions. [2021-07-09 16:55:55,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:55,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:55,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:55,879 INFO L225 Difference]: With dead ends: 23809 [2021-07-09 16:55:55,879 INFO L226 Difference]: Without dead ends: 23809 [2021-07-09 16:55:55,879 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1473.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:55,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23809 states. [2021-07-09 16:55:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23809 to 8869. [2021-07-09 16:55:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.69121461599188) internal successors, (23863), 8868 states have internal predecessors, (23863), 0 states have call successors, (0), 0 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 16:55:56,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23863 transitions. [2021-07-09 16:55:56,088 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23863 transitions. Word has length 114 [2021-07-09 16:55:56,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:56,088 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23863 transitions. [2021-07-09 16:55:56,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:56,088 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23863 transitions. [2021-07-09 16:55:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:56,097 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:56,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:56,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-07-09 16:55:56,097 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:56,098 INFO L82 PathProgramCache]: Analyzing trace with hash -842961746, now seen corresponding path program 76 times [2021-07-09 16:55:56,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:56,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110402091] [2021-07-09 16:55:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:56,444 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 16:55:56,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:56,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110402091] [2021-07-09 16:55:56,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110402091] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:56,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:56,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:56,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023426248] [2021-07-09 16:55:56,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:56,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:56,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:56,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:56,445 INFO L87 Difference]: Start difference. First operand 8869 states and 23863 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:57,090 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:57,239 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:55:57,394 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:55:57,587 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:57,793 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:55:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:58,007 INFO L93 Difference]: Finished difference Result 21287 states and 56449 transitions. [2021-07-09 16:55:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:55:58,007 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:55:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:58,036 INFO L225 Difference]: With dead ends: 21287 [2021-07-09 16:55:58,036 INFO L226 Difference]: Without dead ends: 21287 [2021-07-09 16:55:58,037 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1381.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:55:58,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21287 states. [2021-07-09 16:55:58,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21287 to 8841. [2021-07-09 16:55:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8841 states, 8839 states have (on average 2.6904627220273785) internal successors, (23781), 8840 states have internal predecessors, (23781), 0 states have call successors, (0), 0 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 16:55:58,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 23781 transitions. [2021-07-09 16:55:58,227 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 23781 transitions. Word has length 114 [2021-07-09 16:55:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:58,227 INFO L482 AbstractCegarLoop]: Abstraction has 8841 states and 23781 transitions. [2021-07-09 16:55:58,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 23781 transitions. [2021-07-09 16:55:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:55:58,236 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:58,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:58,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-07-09 16:55:58,236 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:58,237 INFO L82 PathProgramCache]: Analyzing trace with hash -544561072, now seen corresponding path program 77 times [2021-07-09 16:55:58,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:58,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300446369] [2021-07-09 16:55:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:58,565 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 16:55:58,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:58,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300446369] [2021-07-09 16:55:58,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300446369] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:58,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:58,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:55:58,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372480064] [2021-07-09 16:55:58,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:55:58,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:58,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:55:58,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:55:58,566 INFO L87 Difference]: Start difference. First operand 8841 states and 23781 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:55:59,226 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:55:59,392 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:55:59,559 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:55:59,738 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:55:59,941 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:00,129 INFO L93 Difference]: Finished difference Result 24849 states and 65497 transitions. [2021-07-09 16:56:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:00,165 INFO L225 Difference]: With dead ends: 24849 [2021-07-09 16:56:00,166 INFO L226 Difference]: Without dead ends: 24849 [2021-07-09 16:56:00,166 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1389.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:00,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24849 states. [2021-07-09 16:56:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24849 to 8873. [2021-07-09 16:56:00,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8871 states have (on average 2.691128395896742) internal successors, (23873), 8872 states have internal predecessors, (23873), 0 states have call successors, (0), 0 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 16:56:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 23873 transitions. [2021-07-09 16:56:00,382 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 23873 transitions. Word has length 114 [2021-07-09 16:56:00,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:00,382 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 23873 transitions. [2021-07-09 16:56:00,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:00,382 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 23873 transitions. [2021-07-09 16:56:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:00,392 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:00,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:00,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-07-09 16:56:00,392 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:00,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1665027278, now seen corresponding path program 78 times [2021-07-09 16:56:00,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:00,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137120983] [2021-07-09 16:56:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:00,714 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 16:56:00,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:00,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137120983] [2021-07-09 16:56:00,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137120983] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:00,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:00,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:00,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473022399] [2021-07-09 16:56:00,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:00,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:00,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:00,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:00,715 INFO L87 Difference]: Start difference. First operand 8873 states and 23873 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:01,449 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:01,590 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:01,773 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:01,988 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:02,269 INFO L93 Difference]: Finished difference Result 25662 states and 67301 transitions. [2021-07-09 16:56:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:02,303 INFO L225 Difference]: With dead ends: 25662 [2021-07-09 16:56:02,303 INFO L226 Difference]: Without dead ends: 25662 [2021-07-09 16:56:02,304 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1289.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25662 states. [2021-07-09 16:56:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25662 to 8857. [2021-07-09 16:56:02,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 8855 states have (on average 2.6907961603613777) internal successors, (23827), 8856 states have internal predecessors, (23827), 0 states have call successors, (0), 0 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 16:56:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 23827 transitions. [2021-07-09 16:56:02,504 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 23827 transitions. Word has length 114 [2021-07-09 16:56:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:02,505 INFO L482 AbstractCegarLoop]: Abstraction has 8857 states and 23827 transitions. [2021-07-09 16:56:02,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:02,505 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 23827 transitions. [2021-07-09 16:56:02,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:02,513 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:02,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:02,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-07-09 16:56:02,514 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:02,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:02,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1390802480, now seen corresponding path program 79 times [2021-07-09 16:56:02,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:02,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539472793] [2021-07-09 16:56:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:02,836 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 16:56:02,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:02,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539472793] [2021-07-09 16:56:02,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539472793] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:02,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:02,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:02,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533674500] [2021-07-09 16:56:02,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:02,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:02,837 INFO L87 Difference]: Start difference. First operand 8857 states and 23827 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:03,476 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:03,634 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:03,795 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:03,982 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:04,181 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:04,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:04,357 INFO L93 Difference]: Finished difference Result 24988 states and 65714 transitions. [2021-07-09 16:56:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:04,357 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:04,398 INFO L225 Difference]: With dead ends: 24988 [2021-07-09 16:56:04,398 INFO L226 Difference]: Without dead ends: 24988 [2021-07-09 16:56:04,399 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1384.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:04,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24988 states. [2021-07-09 16:56:04,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24988 to 8873. [2021-07-09 16:56:04,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8871 states have (on average 2.691128395896742) internal successors, (23873), 8872 states have internal predecessors, (23873), 0 states have call successors, (0), 0 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 16:56:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 23873 transitions. [2021-07-09 16:56:04,618 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 23873 transitions. Word has length 114 [2021-07-09 16:56:04,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:04,618 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 23873 transitions. [2021-07-09 16:56:04,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 23873 transitions. [2021-07-09 16:56:04,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:04,628 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:04,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:04,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-07-09 16:56:04,628 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:04,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1142255500, now seen corresponding path program 80 times [2021-07-09 16:56:04,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:04,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450828726] [2021-07-09 16:56:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:04,941 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 16:56:04,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:04,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450828726] [2021-07-09 16:56:04,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450828726] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:04,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:04,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:04,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60966068] [2021-07-09 16:56:04,941 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:04,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:04,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:04,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:04,942 INFO L87 Difference]: Start difference. First operand 8873 states and 23873 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:05,728 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:05,904 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:06,104 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:06,329 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:06,474 INFO L93 Difference]: Finished difference Result 22053 states and 58240 transitions. [2021-07-09 16:56:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:06,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:06,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:06,505 INFO L225 Difference]: With dead ends: 22053 [2021-07-09 16:56:06,505 INFO L226 Difference]: Without dead ends: 22053 [2021-07-09 16:56:06,505 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1412.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:06,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22053 states. [2021-07-09 16:56:06,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22053 to 8829. [2021-07-09 16:56:06,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6893621842075452) internal successors, (23739), 8828 states have internal predecessors, (23739), 0 states have call successors, (0), 0 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 16:56:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23739 transitions. [2021-07-09 16:56:06,788 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23739 transitions. Word has length 114 [2021-07-09 16:56:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:06,788 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23739 transitions. [2021-07-09 16:56:06,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23739 transitions. [2021-07-09 16:56:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:06,801 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:06,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:06,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-07-09 16:56:06,801 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:06,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:06,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2022603950, now seen corresponding path program 81 times [2021-07-09 16:56:06,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:06,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097650392] [2021-07-09 16:56:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:07,167 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 16:56:07,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:07,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097650392] [2021-07-09 16:56:07,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097650392] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:07,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:07,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:07,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540091299] [2021-07-09 16:56:07,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:07,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:07,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:07,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:07,168 INFO L87 Difference]: Start difference. First operand 8829 states and 23739 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:07,823 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:07,984 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:08,149 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:08,331 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:08,533 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:08,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:08,705 INFO L93 Difference]: Finished difference Result 21225 states and 56303 transitions. [2021-07-09 16:56:08,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:08,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:08,737 INFO L225 Difference]: With dead ends: 21225 [2021-07-09 16:56:08,737 INFO L226 Difference]: Without dead ends: 21225 [2021-07-09 16:56:08,737 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1393.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21225 states. [2021-07-09 16:56:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21225 to 8893. [2021-07-09 16:56:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.69069845911596) internal successors, (23923), 8892 states have internal predecessors, (23923), 0 states have call successors, (0), 0 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 16:56:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23923 transitions. [2021-07-09 16:56:08,930 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23923 transitions. Word has length 114 [2021-07-09 16:56:08,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:08,930 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23923 transitions. [2021-07-09 16:56:08,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23923 transitions. [2021-07-09 16:56:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:08,940 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:08,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:08,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-07-09 16:56:08,940 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:08,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:08,941 INFO L82 PathProgramCache]: Analyzing trace with hash -62774996, now seen corresponding path program 82 times [2021-07-09 16:56:08,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:08,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815795652] [2021-07-09 16:56:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:09,283 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 16:56:09,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:09,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815795652] [2021-07-09 16:56:09,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815795652] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:09,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:09,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:09,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213306554] [2021-07-09 16:56:09,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:09,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:09,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:09,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:09,285 INFO L87 Difference]: Start difference. First operand 8893 states and 23923 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:09,960 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:10,122 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:10,286 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:10,484 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:10,683 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:10,861 INFO L93 Difference]: Finished difference Result 22038 states and 58107 transitions. [2021-07-09 16:56:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:10,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:10,891 INFO L225 Difference]: With dead ends: 22038 [2021-07-09 16:56:10,891 INFO L226 Difference]: Without dead ends: 22038 [2021-07-09 16:56:10,892 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1395.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22038 states. [2021-07-09 16:56:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22038 to 8877. [2021-07-09 16:56:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.6903661971830988) internal successors, (23877), 8876 states have internal predecessors, (23877), 0 states have call successors, (0), 0 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 16:56:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23877 transitions. [2021-07-09 16:56:11,168 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23877 transitions. Word has length 114 [2021-07-09 16:56:11,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:11,168 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23877 transitions. [2021-07-09 16:56:11,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:11,168 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23877 transitions. [2021-07-09 16:56:11,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:11,177 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:11,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:11,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-07-09 16:56:11,177 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:11,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:11,178 INFO L82 PathProgramCache]: Analyzing trace with hash -336999794, now seen corresponding path program 83 times [2021-07-09 16:56:11,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:11,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984339731] [2021-07-09 16:56:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:11,503 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 16:56:11,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:11,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984339731] [2021-07-09 16:56:11,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984339731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:11,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:11,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:11,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616370722] [2021-07-09 16:56:11,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:11,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:11,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:11,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:11,504 INFO L87 Difference]: Start difference. First operand 8877 states and 23877 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:12,148 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:12,300 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:12,466 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:12,655 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:12,855 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:13,030 INFO L93 Difference]: Finished difference Result 25151 states and 66057 transitions. [2021-07-09 16:56:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:13,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:13,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:13,067 INFO L225 Difference]: With dead ends: 25151 [2021-07-09 16:56:13,068 INFO L226 Difference]: Without dead ends: 25151 [2021-07-09 16:56:13,068 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1392.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:13,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25151 states. [2021-07-09 16:56:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25151 to 8893. [2021-07-09 16:56:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.69069845911596) internal successors, (23923), 8892 states have internal predecessors, (23923), 0 states have call successors, (0), 0 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 16:56:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23923 transitions. [2021-07-09 16:56:13,280 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23923 transitions. Word has length 114 [2021-07-09 16:56:13,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:13,281 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23923 transitions. [2021-07-09 16:56:13,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23923 transitions. [2021-07-09 16:56:13,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:13,289 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:13,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:13,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-07-09 16:56:13,290 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:13,290 INFO L82 PathProgramCache]: Analyzing trace with hash -585546774, now seen corresponding path program 84 times [2021-07-09 16:56:13,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:13,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314257237] [2021-07-09 16:56:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:13,642 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 16:56:13,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:13,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314257237] [2021-07-09 16:56:13,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314257237] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:13,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:13,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:13,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789563284] [2021-07-09 16:56:13,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:13,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:13,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:13,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:13,644 INFO L87 Difference]: Start difference. First operand 8893 states and 23923 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:14,296 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:14,454 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:14,621 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:14,801 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:15,005 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:15,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:15,165 INFO L93 Difference]: Finished difference Result 22216 states and 58583 transitions. [2021-07-09 16:56:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:15,165 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:15,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:15,196 INFO L225 Difference]: With dead ends: 22216 [2021-07-09 16:56:15,196 INFO L226 Difference]: Without dead ends: 22216 [2021-07-09 16:56:15,196 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1396.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:15,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22216 states. [2021-07-09 16:56:15,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22216 to 8861. [2021-07-09 16:56:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.6900327350716786) internal successors, (23831), 8860 states have internal predecessors, (23831), 0 states have call successors, (0), 0 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 16:56:15,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23831 transitions. [2021-07-09 16:56:15,474 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23831 transitions. Word has length 114 [2021-07-09 16:56:15,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:15,475 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23831 transitions. [2021-07-09 16:56:15,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:15,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23831 transitions. [2021-07-09 16:56:15,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:15,484 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:15,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:15,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-07-09 16:56:15,484 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:15,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:15,484 INFO L82 PathProgramCache]: Analyzing trace with hash 892916012, now seen corresponding path program 85 times [2021-07-09 16:56:15,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:15,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584688358] [2021-07-09 16:56:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:15,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:15,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584688358] [2021-07-09 16:56:15,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584688358] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:15,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:15,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:15,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722629475] [2021-07-09 16:56:15,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:15,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:15,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:15,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:15,817 INFO L87 Difference]: Start difference. First operand 8861 states and 23831 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:16,468 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:16,616 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:16,792 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:16,986 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:17,192 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:17,366 INFO L93 Difference]: Finished difference Result 21348 states and 56474 transitions. [2021-07-09 16:56:17,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:17,366 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:17,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:17,397 INFO L225 Difference]: With dead ends: 21348 [2021-07-09 16:56:17,397 INFO L226 Difference]: Without dead ends: 21348 [2021-07-09 16:56:17,397 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1387.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:17,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21348 states. [2021-07-09 16:56:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21348 to 8909. [2021-07-09 16:56:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8909 states, 8907 states have (on average 2.6910295273380487) internal successors, (23969), 8908 states have internal predecessors, (23969), 0 states have call successors, (0), 0 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 16:56:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8909 states to 8909 states and 23969 transitions. [2021-07-09 16:56:17,585 INFO L78 Accepts]: Start accepts. Automaton has 8909 states and 23969 transitions. Word has length 114 [2021-07-09 16:56:17,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:17,585 INFO L482 AbstractCegarLoop]: Abstraction has 8909 states and 23969 transitions. [2021-07-09 16:56:17,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:17,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8909 states and 23969 transitions. [2021-07-09 16:56:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:17,594 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:17,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:17,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-07-09 16:56:17,595 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:17,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:17,595 INFO L82 PathProgramCache]: Analyzing trace with hash 644369032, now seen corresponding path program 86 times [2021-07-09 16:56:17,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:17,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719603127] [2021-07-09 16:56:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:17,919 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 16:56:17,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:17,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719603127] [2021-07-09 16:56:17,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719603127] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:17,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:17,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:17,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174446596] [2021-07-09 16:56:17,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:17,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:17,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:17,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:17,920 INFO L87 Difference]: Start difference. First operand 8909 states and 23969 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:18,568 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:18,716 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:18,894 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:19,074 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:19,277 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:19,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:19,439 INFO L93 Difference]: Finished difference Result 21188 states and 56072 transitions. [2021-07-09 16:56:19,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:19,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:19,472 INFO L225 Difference]: With dead ends: 21188 [2021-07-09 16:56:19,472 INFO L226 Difference]: Without dead ends: 21188 [2021-07-09 16:56:19,473 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1365.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2021-07-09 16:56:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8893. [2021-07-09 16:56:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.69069845911596) internal successors, (23923), 8892 states have internal predecessors, (23923), 0 states have call successors, (0), 0 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 16:56:19,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23923 transitions. [2021-07-09 16:56:19,674 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23923 transitions. Word has length 114 [2021-07-09 16:56:19,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:19,674 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23923 transitions. [2021-07-09 16:56:19,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:19,674 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23923 transitions. [2021-07-09 16:56:19,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:19,786 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:19,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:19,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-07-09 16:56:19,787 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:19,787 INFO L82 PathProgramCache]: Analyzing trace with hash -512448272, now seen corresponding path program 87 times [2021-07-09 16:56:19,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:19,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66547652] [2021-07-09 16:56:19,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:20,116 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 16:56:20,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:20,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66547652] [2021-07-09 16:56:20,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66547652] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:20,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:20,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:20,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418734880] [2021-07-09 16:56:20,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:20,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:20,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:20,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:20,117 INFO L87 Difference]: Start difference. First operand 8893 states and 23923 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:20,792 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:20,941 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:21,097 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:56:21,292 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:21,501 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:21,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:21,665 INFO L93 Difference]: Finished difference Result 18621 states and 49526 transitions. [2021-07-09 16:56:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:21,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:21,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:21,691 INFO L225 Difference]: With dead ends: 18621 [2021-07-09 16:56:21,691 INFO L226 Difference]: Without dead ends: 18621 [2021-07-09 16:56:21,692 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1391.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:21,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18621 states. [2021-07-09 16:56:21,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18621 to 8805. [2021-07-09 16:56:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8805 states, 8803 states have (on average 2.6871521072361695) internal successors, (23655), 8804 states have internal predecessors, (23655), 0 states have call successors, (0), 0 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 16:56:21,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 23655 transitions. [2021-07-09 16:56:21,882 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 23655 transitions. Word has length 114 [2021-07-09 16:56:21,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:21,882 INFO L482 AbstractCegarLoop]: Abstraction has 8805 states and 23655 transitions. [2021-07-09 16:56:21,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:21,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 23655 transitions. [2021-07-09 16:56:21,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:21,891 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:21,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:21,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-07-09 16:56:21,891 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:21,891 INFO L82 PathProgramCache]: Analyzing trace with hash 2043509934, now seen corresponding path program 88 times [2021-07-09 16:56:21,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:21,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483625482] [2021-07-09 16:56:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:22,232 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 16:56:22,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:22,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483625482] [2021-07-09 16:56:22,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483625482] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:22,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:22,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:22,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769091980] [2021-07-09 16:56:22,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:22,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:22,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:22,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:22,234 INFO L87 Difference]: Start difference. First operand 8805 states and 23655 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:22,870 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:23,028 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:23,212 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:23,394 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:23,606 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:23,810 INFO L93 Difference]: Finished difference Result 28980 states and 76697 transitions. [2021-07-09 16:56:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:23,810 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:23,861 INFO L225 Difference]: With dead ends: 28980 [2021-07-09 16:56:23,862 INFO L226 Difference]: Without dead ends: 28980 [2021-07-09 16:56:23,862 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1384.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:23,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28980 states. [2021-07-09 16:56:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28980 to 8901. [2021-07-09 16:56:24,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8901 states, 8899 states have (on average 2.6891785593886954) internal successors, (23931), 8900 states have internal predecessors, (23931), 0 states have call successors, (0), 0 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 16:56:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8901 states to 8901 states and 23931 transitions. [2021-07-09 16:56:24,120 INFO L78 Accepts]: Start accepts. Automaton has 8901 states and 23931 transitions. Word has length 114 [2021-07-09 16:56:24,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:24,120 INFO L482 AbstractCegarLoop]: Abstraction has 8901 states and 23931 transitions. [2021-07-09 16:56:24,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8901 states and 23931 transitions. [2021-07-09 16:56:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:24,129 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:24,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:24,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-07-09 16:56:24,129 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:24,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:24,129 INFO L82 PathProgramCache]: Analyzing trace with hash -41869012, now seen corresponding path program 89 times [2021-07-09 16:56:24,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:24,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099786455] [2021-07-09 16:56:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:24,543 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 16:56:24,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:24,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099786455] [2021-07-09 16:56:24,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099786455] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:24,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:24,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:24,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824916230] [2021-07-09 16:56:24,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:24,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:24,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:24,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:24,544 INFO L87 Difference]: Start difference. First operand 8901 states and 23931 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:25,200 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:25,347 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:25,523 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:25,713 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:25,917 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:26,123 INFO L93 Difference]: Finished difference Result 28558 states and 75183 transitions. [2021-07-09 16:56:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:26,167 INFO L225 Difference]: With dead ends: 28558 [2021-07-09 16:56:26,168 INFO L226 Difference]: Without dead ends: 28558 [2021-07-09 16:56:26,168 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1402.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28558 states. [2021-07-09 16:56:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28558 to 8885. [2021-07-09 16:56:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 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 16:56:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-09 16:56:26,429 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-09 16:56:26,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:26,429 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-09 16:56:26,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-09 16:56:26,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:26,440 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:26,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:26,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-07-09 16:56:26,440 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:26,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1680982386, now seen corresponding path program 90 times [2021-07-09 16:56:26,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:26,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622554992] [2021-07-09 16:56:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:26,742 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 16:56:26,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:26,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622554992] [2021-07-09 16:56:26,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622554992] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:26,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:26,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:26,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571194982] [2021-07-09 16:56:26,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:26,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:26,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:26,743 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:27,487 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:27,659 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:56:27,870 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:28,094 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:28,305 INFO L93 Difference]: Finished difference Result 26036 states and 68676 transitions. [2021-07-09 16:56:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:28,357 INFO L225 Difference]: With dead ends: 26036 [2021-07-09 16:56:28,357 INFO L226 Difference]: Without dead ends: 26036 [2021-07-09 16:56:28,357 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1347.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:28,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26036 states. [2021-07-09 16:56:28,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26036 to 8853. [2021-07-09 16:56:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 8851 states have (on average 2.6881708281550107) internal successors, (23793), 8852 states have internal predecessors, (23793), 0 states have call successors, (0), 0 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 16:56:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 23793 transitions. [2021-07-09 16:56:28,719 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 23793 transitions. Word has length 114 [2021-07-09 16:56:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:28,719 INFO L482 AbstractCegarLoop]: Abstraction has 8853 states and 23793 transitions. [2021-07-09 16:56:28,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 23793 transitions. [2021-07-09 16:56:28,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:28,730 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:28,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:28,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-07-09 16:56:28,730 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:28,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1382581712, now seen corresponding path program 91 times [2021-07-09 16:56:28,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:28,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171890700] [2021-07-09 16:56:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:29,057 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 16:56:29,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:29,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171890700] [2021-07-09 16:56:29,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171890700] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:29,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:29,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:29,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554901504] [2021-07-09 16:56:29,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:29,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:29,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:29,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:29,058 INFO L87 Difference]: Start difference. First operand 8853 states and 23793 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:29,704 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:29,868 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:30,037 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:30,218 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:30,399 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:30,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:30,603 INFO L93 Difference]: Finished difference Result 25846 states and 68162 transitions. [2021-07-09 16:56:30,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:30,604 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:30,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:30,651 INFO L225 Difference]: With dead ends: 25846 [2021-07-09 16:56:30,652 INFO L226 Difference]: Without dead ends: 25846 [2021-07-09 16:56:30,652 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1331.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:30,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25846 states. [2021-07-09 16:56:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25846 to 8885. [2021-07-09 16:56:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 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 16:56:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-09 16:56:30,910 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-09 16:56:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:30,910 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-09 16:56:30,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-09 16:56:30,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:30,921 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:30,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:30,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-07-09 16:56:30,921 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:30,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:30,921 INFO L82 PathProgramCache]: Analyzing trace with hash 827006638, now seen corresponding path program 92 times [2021-07-09 16:56:30,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:30,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686147226] [2021-07-09 16:56:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:31,222 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 16:56:31,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:31,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686147226] [2021-07-09 16:56:31,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686147226] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:31,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:31,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:31,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070736281] [2021-07-09 16:56:31,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:31,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:31,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:31,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:31,223 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:31,941 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:32,086 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:32,273 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:32,483 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:32,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:32,687 INFO L93 Difference]: Finished difference Result 26659 states and 69966 transitions. [2021-07-09 16:56:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:32,687 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:32,726 INFO L225 Difference]: With dead ends: 26659 [2021-07-09 16:56:32,726 INFO L226 Difference]: Without dead ends: 26659 [2021-07-09 16:56:32,727 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1245.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:32,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26659 states. [2021-07-09 16:56:33,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26659 to 8869. [2021-07-09 16:56:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.688507950828916) internal successors, (23839), 8868 states have internal predecessors, (23839), 0 states have call successors, (0), 0 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 16:56:33,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23839 transitions. [2021-07-09 16:56:33,065 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23839 transitions. Word has length 114 [2021-07-09 16:56:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:33,065 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23839 transitions. [2021-07-09 16:56:33,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23839 transitions. [2021-07-09 16:56:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:33,075 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:33,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:33,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-07-09 16:56:33,075 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:33,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:33,075 INFO L82 PathProgramCache]: Analyzing trace with hash 552781840, now seen corresponding path program 93 times [2021-07-09 16:56:33,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:33,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736934178] [2021-07-09 16:56:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:33,385 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 16:56:33,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:33,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736934178] [2021-07-09 16:56:33,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736934178] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:33,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:33,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:33,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844449905] [2021-07-09 16:56:33,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:33,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:33,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:33,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:33,387 INFO L87 Difference]: Start difference. First operand 8869 states and 23839 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:34,026 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:34,190 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:34,362 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:34,557 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:34,759 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:34,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:34,956 INFO L93 Difference]: Finished difference Result 25985 states and 68379 transitions. [2021-07-09 16:56:34,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:34,957 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:34,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:34,997 INFO L225 Difference]: With dead ends: 25985 [2021-07-09 16:56:34,997 INFO L226 Difference]: Without dead ends: 25985 [2021-07-09 16:56:34,997 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1367.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25985 states. [2021-07-09 16:56:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25985 to 8885. [2021-07-09 16:56:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 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 16:56:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-09 16:56:35,215 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-09 16:56:35,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:35,215 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-09 16:56:35,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:35,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-09 16:56:35,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:35,223 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:35,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:35,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-07-09 16:56:35,224 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:35,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:35,224 INFO L82 PathProgramCache]: Analyzing trace with hash 304234860, now seen corresponding path program 94 times [2021-07-09 16:56:35,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:35,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006157185] [2021-07-09 16:56:35,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:35,559 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 16:56:35,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:35,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006157185] [2021-07-09 16:56:35,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006157185] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:35,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:35,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:35,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786483297] [2021-07-09 16:56:35,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:35,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:35,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:35,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:35,560 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:36,215 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:36,378 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:36,544 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:36,726 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:36,951 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:37,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:37,126 INFO L93 Difference]: Finished difference Result 23332 states and 61619 transitions. [2021-07-09 16:56:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:37,127 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:37,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:37,161 INFO L225 Difference]: With dead ends: 23332 [2021-07-09 16:56:37,161 INFO L226 Difference]: Without dead ends: 23332 [2021-07-09 16:56:37,161 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1422.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:37,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23332 states. [2021-07-09 16:56:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23332 to 8821. [2021-07-09 16:56:37,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 8819 states have (on average 2.687492913028688) internal successors, (23701), 8820 states have internal predecessors, (23701), 0 states have call successors, (0), 0 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 16:56:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 23701 transitions. [2021-07-09 16:56:37,504 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 23701 transitions. Word has length 114 [2021-07-09 16:56:37,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:37,504 INFO L482 AbstractCegarLoop]: Abstraction has 8821 states and 23701 transitions. [2021-07-09 16:56:37,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 23701 transitions. [2021-07-09 16:56:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:37,514 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:37,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:37,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-07-09 16:56:37,514 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:37,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1948831696, now seen corresponding path program 95 times [2021-07-09 16:56:37,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:37,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585614793] [2021-07-09 16:56:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:37,863 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 16:56:37,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:37,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585614793] [2021-07-09 16:56:37,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585614793] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:37,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:37,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:37,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435457672] [2021-07-09 16:56:37,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:37,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:37,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:37,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:37,864 INFO L87 Difference]: Start difference. First operand 8821 states and 23701 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:38,534 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:56:38,682 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:38,869 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:39,053 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:39,262 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:39,448 INFO L93 Difference]: Finished difference Result 23548 states and 62419 transitions. [2021-07-09 16:56:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:39,482 INFO L225 Difference]: With dead ends: 23548 [2021-07-09 16:56:39,482 INFO L226 Difference]: Without dead ends: 23548 [2021-07-09 16:56:39,482 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1403.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23548 states. [2021-07-09 16:56:39,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23548 to 8885. [2021-07-09 16:56:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 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 16:56:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-09 16:56:39,686 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-09 16:56:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:39,687 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-09 16:56:39,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-09 16:56:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:39,699 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:39,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:39,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-07-09 16:56:39,699 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:39,699 INFO L82 PathProgramCache]: Analyzing trace with hash -136547250, now seen corresponding path program 96 times [2021-07-09 16:56:39,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:39,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32355767] [2021-07-09 16:56:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:40,051 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 16:56:40,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:40,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32355767] [2021-07-09 16:56:40,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32355767] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:40,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:40,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:40,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381999853] [2021-07-09 16:56:40,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:40,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:40,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:40,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:40,052 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:40,989 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:41,205 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:41,438 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:41,630 INFO L93 Difference]: Finished difference Result 23126 states and 60905 transitions. [2021-07-09 16:56:41,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:41,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:41,661 INFO L225 Difference]: With dead ends: 23126 [2021-07-09 16:56:41,662 INFO L226 Difference]: Without dead ends: 23126 [2021-07-09 16:56:41,662 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1397.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-07-09 16:56:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 8869. [2021-07-09 16:56:41,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.688507950828916) internal successors, (23839), 8868 states have internal predecessors, (23839), 0 states have call successors, (0), 0 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 16:56:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23839 transitions. [2021-07-09 16:56:41,993 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23839 transitions. Word has length 114 [2021-07-09 16:56:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:41,993 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23839 transitions. [2021-07-09 16:56:41,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23839 transitions. [2021-07-09 16:56:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:42,002 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:42,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:42,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-07-09 16:56:42,002 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:42,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:42,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1775660624, now seen corresponding path program 97 times [2021-07-09 16:56:42,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:42,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625608886] [2021-07-09 16:56:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:42,351 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 16:56:42,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:42,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625608886] [2021-07-09 16:56:42,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625608886] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:42,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:42,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:42,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033697527] [2021-07-09 16:56:42,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:42,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:42,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:42,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:42,353 INFO L87 Difference]: Start difference. First operand 8869 states and 23839 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:43,262 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:56:43,441 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:43,628 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:43,785 INFO L93 Difference]: Finished difference Result 23108 states and 60959 transitions. [2021-07-09 16:56:43,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:43,786 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:43,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:43,821 INFO L225 Difference]: With dead ends: 23108 [2021-07-09 16:56:43,821 INFO L226 Difference]: Without dead ends: 23108 [2021-07-09 16:56:43,821 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1303.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:43,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23108 states. [2021-07-09 16:56:44,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23108 to 8837. [2021-07-09 16:56:44,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 8835 states have (on average 2.687832484436899) internal successors, (23747), 8836 states have internal predecessors, (23747), 0 states have call successors, (0), 0 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 16:56:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 23747 transitions. [2021-07-09 16:56:44,051 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 23747 transitions. Word has length 114 [2021-07-09 16:56:44,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:44,051 INFO L482 AbstractCegarLoop]: Abstraction has 8837 states and 23747 transitions. [2021-07-09 16:56:44,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 23747 transitions. [2021-07-09 16:56:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:44,063 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:44,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:44,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-07-09 16:56:44,064 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:44,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:44,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2140489358, now seen corresponding path program 98 times [2021-07-09 16:56:44,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:44,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683119349] [2021-07-09 16:56:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:44,402 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 16:56:44,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:44,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683119349] [2021-07-09 16:56:44,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683119349] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:44,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:44,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:44,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626482364] [2021-07-09 16:56:44,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:44,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:44,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:44,403 INFO L87 Difference]: Start difference. First operand 8837 states and 23747 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:45,252 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:56:45,426 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:45,626 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:45,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:45,788 INFO L93 Difference]: Finished difference Result 19834 states and 52536 transitions. [2021-07-09 16:56:45,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:45,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:45,816 INFO L225 Difference]: With dead ends: 19834 [2021-07-09 16:56:45,816 INFO L226 Difference]: Without dead ends: 19834 [2021-07-09 16:56:45,816 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1221.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:45,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19834 states. [2021-07-09 16:56:45,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19834 to 8781. [2021-07-09 16:56:45,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8779 states have (on average 2.6862968447431372) internal successors, (23583), 8780 states have internal predecessors, (23583), 0 states have call successors, (0), 0 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 16:56:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 23583 transitions. [2021-07-09 16:56:45,992 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 23583 transitions. Word has length 114 [2021-07-09 16:56:45,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:45,992 INFO L482 AbstractCegarLoop]: Abstraction has 8781 states and 23583 transitions. [2021-07-09 16:56:45,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 23583 transitions. [2021-07-09 16:56:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:46,001 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:46,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:46,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-07-09 16:56:46,001 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:46,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:46,001 INFO L82 PathProgramCache]: Analyzing trace with hash -88893616, now seen corresponding path program 99 times [2021-07-09 16:56:46,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:46,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888510620] [2021-07-09 16:56:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:46,418 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 16:56:46,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:46,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888510620] [2021-07-09 16:56:46,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888510620] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:46,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:46,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:46,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701881829] [2021-07-09 16:56:46,419 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:46,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:46,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:46,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:46,419 INFO L87 Difference]: Start difference. First operand 8781 states and 23583 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:47,063 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:47,194 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:47,347 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:47,501 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:47,706 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:47,889 INFO L93 Difference]: Finished difference Result 24669 states and 65646 transitions. [2021-07-09 16:56:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:47,889 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:47,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:47,925 INFO L225 Difference]: With dead ends: 24669 [2021-07-09 16:56:47,925 INFO L226 Difference]: Without dead ends: 24669 [2021-07-09 16:56:47,925 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1317.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:47,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24669 states. [2021-07-09 16:56:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24669 to 8893. [2021-07-09 16:56:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 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 16:56:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-07-09 16:56:48,131 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-07-09 16:56:48,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:48,131 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-07-09 16:56:48,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:48,131 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-07-09 16:56:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:48,140 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:48,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:48,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-07-09 16:56:48,140 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:48,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2120694734, now seen corresponding path program 100 times [2021-07-09 16:56:48,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:48,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599950328] [2021-07-09 16:56:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:48,470 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 16:56:48,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:48,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599950328] [2021-07-09 16:56:48,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599950328] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:48,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:48,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:48,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925204439] [2021-07-09 16:56:48,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:48,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:48,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:48,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:48,471 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:49,122 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:49,268 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:49,444 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:49,637 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:49,835 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:50,010 INFO L93 Difference]: Finished difference Result 24247 states and 64132 transitions. [2021-07-09 16:56:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:50,046 INFO L225 Difference]: With dead ends: 24247 [2021-07-09 16:56:50,046 INFO L226 Difference]: Without dead ends: 24247 [2021-07-09 16:56:50,046 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1394.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24247 states. [2021-07-09 16:56:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24247 to 8877. [2021-07-09 16:56:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:56:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:56:50,251 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:56:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:50,251 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:56:50,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:56:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:50,260 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:50,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:50,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-07-09 16:56:50,260 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:50,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:50,261 INFO L82 PathProgramCache]: Analyzing trace with hash 481581360, now seen corresponding path program 101 times [2021-07-09 16:56:50,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:50,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071135211] [2021-07-09 16:56:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:50,705 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 16:56:50,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:50,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071135211] [2021-07-09 16:56:50,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071135211] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:50,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:50,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:50,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344241841] [2021-07-09 16:56:50,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:50,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:50,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:50,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:50,706 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:51,360 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:51,507 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:56:51,661 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:56:51,866 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:52,083 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:52,258 INFO L93 Difference]: Finished difference Result 21725 states and 57625 transitions. [2021-07-09 16:56:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:52,298 INFO L225 Difference]: With dead ends: 21725 [2021-07-09 16:56:52,298 INFO L226 Difference]: Without dead ends: 21725 [2021-07-09 16:56:52,298 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1407.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:52,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21725 states. [2021-07-09 16:56:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21725 to 8845. [2021-07-09 16:56:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 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 16:56:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-07-09 16:56:52,543 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-07-09 16:56:52,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:52,543 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-07-09 16:56:52,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:52,543 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-07-09 16:56:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:52,555 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:52,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:52,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-07-09 16:56:52,555 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:52,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:52,555 INFO L82 PathProgramCache]: Analyzing trace with hash 779982034, now seen corresponding path program 102 times [2021-07-09 16:56:52,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:52,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396125994] [2021-07-09 16:56:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:52,884 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 16:56:52,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:52,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396125994] [2021-07-09 16:56:52,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396125994] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:52,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:52,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:52,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968258281] [2021-07-09 16:56:52,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:52,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:52,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:52,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:52,885 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:53,545 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:53,714 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:53,879 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:54,065 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:56:54,268 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:56:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:54,465 INFO L93 Difference]: Finished difference Result 21535 states and 57111 transitions. [2021-07-09 16:56:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:54,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:54,501 INFO L225 Difference]: With dead ends: 21535 [2021-07-09 16:56:54,501 INFO L226 Difference]: Without dead ends: 21535 [2021-07-09 16:56:54,501 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1367.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:54,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21535 states. [2021-07-09 16:56:54,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21535 to 8877. [2021-07-09 16:56:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:56:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:56:54,749 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:56:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:54,749 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:56:54,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:56:54,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:54,762 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:54,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:54,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-07-09 16:56:54,762 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:54,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:54,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1305396912, now seen corresponding path program 103 times [2021-07-09 16:56:54,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:54,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865999983] [2021-07-09 16:56:54,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:55,215 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 16:56:55,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:55,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865999983] [2021-07-09 16:56:55,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865999983] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:55,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:55,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:55,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930233410] [2021-07-09 16:56:55,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:55,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:55,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:55,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:55,216 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:55,856 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:56,014 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:56,173 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:56,365 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:56,560 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:56,734 INFO L93 Difference]: Finished difference Result 22348 states and 58915 transitions. [2021-07-09 16:56:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:56,769 INFO L225 Difference]: With dead ends: 22348 [2021-07-09 16:56:56,769 INFO L226 Difference]: Without dead ends: 22348 [2021-07-09 16:56:56,769 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1424.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:56,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22348 states. [2021-07-09 16:56:56,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22348 to 8861. [2021-07-09 16:56:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 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 16:56:57,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-09 16:56:57,000 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-09 16:56:57,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:57,000 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-09 16:56:57,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-09 16:56:57,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:57,011 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:57,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:57,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-07-09 16:56:57,011 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:57,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:57,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1579621710, now seen corresponding path program 104 times [2021-07-09 16:56:57,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:57,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837394912] [2021-07-09 16:56:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:57,325 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 16:56:57,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:57,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837394912] [2021-07-09 16:56:57,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837394912] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:57,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:57,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:57,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774987121] [2021-07-09 16:56:57,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:57,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:57,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:57,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:57,326 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:57,976 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:56:58,135 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:56:58,277 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:56:58,453 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:56:58,627 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:56:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:58,798 INFO L93 Difference]: Finished difference Result 21674 states and 57328 transitions. [2021-07-09 16:56:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:56:58,798 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:56:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:58,827 INFO L225 Difference]: With dead ends: 21674 [2021-07-09 16:56:58,827 INFO L226 Difference]: Without dead ends: 21674 [2021-07-09 16:56:58,827 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1300.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:56:58,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21674 states. [2021-07-09 16:56:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21674 to 8877. [2021-07-09 16:56:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:56:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:56:59,028 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:56:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:59,028 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:56:59,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:56:59,028 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:56:59,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:56:59,037 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:59,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:59,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-07-09 16:56:59,037 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:59,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1828168690, now seen corresponding path program 105 times [2021-07-09 16:56:59,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:59,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016195397] [2021-07-09 16:56:59,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:59,325 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 16:56:59,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:59,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016195397] [2021-07-09 16:56:59,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016195397] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:59,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:59,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:56:59,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487293332] [2021-07-09 16:56:59,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:56:59,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:59,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:56:59,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:56:59,326 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:00,166 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:00,327 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:00,508 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:00,708 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:00,879 INFO L93 Difference]: Finished difference Result 19021 states and 50568 transitions. [2021-07-09 16:57:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:00,913 INFO L225 Difference]: With dead ends: 19021 [2021-07-09 16:57:00,914 INFO L226 Difference]: Without dead ends: 19021 [2021-07-09 16:57:00,914 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1355.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2021-07-09 16:57:01,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 8813. [2021-07-09 16:57:01,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 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 16:57:01,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-07-09 16:57:01,121 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-07-09 16:57:01,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:01,121 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-07-09 16:57:01,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-07-09 16:57:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:01,132 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:01,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:01,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-07-09 16:57:01,132 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:01,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash -183571854, now seen corresponding path program 106 times [2021-07-09 16:57:01,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:01,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400975235] [2021-07-09 16:57:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:01,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:01,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400975235] [2021-07-09 16:57:01,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400975235] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:01,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:01,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:01,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82732555] [2021-07-09 16:57:01,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:01,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:01,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:01,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:01,474 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:02,253 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:02,432 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:02,613 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:02,815 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:03,012 INFO L93 Difference]: Finished difference Result 23970 states and 63549 transitions. [2021-07-09 16:57:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:03,012 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:03,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:03,053 INFO L225 Difference]: With dead ends: 23970 [2021-07-09 16:57:03,054 INFO L226 Difference]: Without dead ends: 23970 [2021-07-09 16:57:03,054 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1369.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:03,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23970 states. [2021-07-09 16:57:03,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23970 to 8877. [2021-07-09 16:57:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:57:03,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:57:03,300 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:57:03,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:03,301 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:57:03,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:57:03,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:03,311 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:03,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:03,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-07-09 16:57:03,311 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:03,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:03,312 INFO L82 PathProgramCache]: Analyzing trace with hash 2026016496, now seen corresponding path program 107 times [2021-07-09 16:57:03,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:03,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405813753] [2021-07-09 16:57:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:03,665 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 16:57:03,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:03,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405813753] [2021-07-09 16:57:03,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405813753] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:03,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:03,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:03,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740315019] [2021-07-09 16:57:03,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:03,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:03,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:03,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:03,666 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:04,115 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-07-09 16:57:04,357 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:57:04,501 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:04,682 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:04,876 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:05,079 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:05,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:05,260 INFO L93 Difference]: Finished difference Result 23548 states and 62035 transitions. [2021-07-09 16:57:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:05,299 INFO L225 Difference]: With dead ends: 23548 [2021-07-09 16:57:05,300 INFO L226 Difference]: Without dead ends: 23548 [2021-07-09 16:57:05,300 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1451.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:05,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23548 states. [2021-07-09 16:57:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23548 to 8861. [2021-07-09 16:57:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 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 16:57:05,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-09 16:57:05,552 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-09 16:57:05,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:05,552 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-09 16:57:05,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-09 16:57:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:05,564 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:05,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:05,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-07-09 16:57:05,565 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:05,565 INFO L82 PathProgramCache]: Analyzing trace with hash 386903122, now seen corresponding path program 108 times [2021-07-09 16:57:05,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:05,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691441802] [2021-07-09 16:57:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:05,906 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 16:57:05,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:05,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691441802] [2021-07-09 16:57:05,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691441802] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:05,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:05,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:05,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206126818] [2021-07-09 16:57:05,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:05,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:05,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:05,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:05,907 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:06,568 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:57:06,697 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:06,850 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:07,036 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:07,249 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:07,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:07,440 INFO L93 Difference]: Finished difference Result 23530 states and 62089 transitions. [2021-07-09 16:57:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:07,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:07,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:07,480 INFO L225 Difference]: With dead ends: 23530 [2021-07-09 16:57:07,481 INFO L226 Difference]: Without dead ends: 23530 [2021-07-09 16:57:07,481 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1349.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:07,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23530 states. [2021-07-09 16:57:07,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23530 to 8829. [2021-07-09 16:57:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 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 16:57:07,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-07-09 16:57:07,737 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-07-09 16:57:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:07,737 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-07-09 16:57:07,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-07-09 16:57:07,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:07,748 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:07,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:07,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-07-09 16:57:07,748 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:07,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:07,748 INFO L82 PathProgramCache]: Analyzing trace with hash 8085808, now seen corresponding path program 109 times [2021-07-09 16:57:07,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:07,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563121012] [2021-07-09 16:57:07,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:08,094 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 16:57:08,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:08,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563121012] [2021-07-09 16:57:08,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563121012] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:08,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:08,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:08,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436226882] [2021-07-09 16:57:08,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:08,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:08,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:08,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:08,095 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:08,805 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:57:08,942 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:57:09,094 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:09,297 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:09,482 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:09,645 INFO L93 Difference]: Finished difference Result 20256 states and 53666 transitions. [2021-07-09 16:57:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:09,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:09,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:09,677 INFO L225 Difference]: With dead ends: 20256 [2021-07-09 16:57:09,677 INFO L226 Difference]: Without dead ends: 20256 [2021-07-09 16:57:09,678 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1384.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:09,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20256 states. [2021-07-09 16:57:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20256 to 8797. [2021-07-09 16:57:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8795 states have (on average 2.68664013644116) internal successors, (23629), 8796 states have internal predecessors, (23629), 0 states have call successors, (0), 0 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 16:57:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 23629 transitions. [2021-07-09 16:57:09,889 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 23629 transitions. Word has length 114 [2021-07-09 16:57:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:09,889 INFO L482 AbstractCegarLoop]: Abstraction has 8797 states and 23629 transitions. [2021-07-09 16:57:09,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 23629 transitions. [2021-07-09 16:57:09,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:09,899 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:09,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:09,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-07-09 16:57:09,899 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:09,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:09,900 INFO L82 PathProgramCache]: Analyzing trace with hash -589474162, now seen corresponding path program 110 times [2021-07-09 16:57:09,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:09,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404897518] [2021-07-09 16:57:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:10,290 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 16:57:10,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:10,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404897518] [2021-07-09 16:57:10,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404897518] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:10,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:10,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:10,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601288240] [2021-07-09 16:57:10,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:10,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:10,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:10,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:10,291 INFO L87 Difference]: Start difference. First operand 8797 states and 23629 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:10,980 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:11,137 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:11,296 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:11,480 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:11,639 INFO L93 Difference]: Finished difference Result 19221 states and 51322 transitions. [2021-07-09 16:57:11,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:11,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:11,666 INFO L225 Difference]: With dead ends: 19221 [2021-07-09 16:57:11,666 INFO L226 Difference]: Without dead ends: 19221 [2021-07-09 16:57:11,667 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1267.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:11,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19221 states. [2021-07-09 16:57:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19221 to 8877. [2021-07-09 16:57:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:57:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:57:11,838 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:57:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:11,838 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:57:11,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:11,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:57:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:11,848 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:11,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:11,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-07-09 16:57:11,848 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:11,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1620114188, now seen corresponding path program 111 times [2021-07-09 16:57:11,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:11,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836480234] [2021-07-09 16:57:11,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:12,306 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 16:57:12,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:12,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836480234] [2021-07-09 16:57:12,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836480234] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:12,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:12,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:12,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151295436] [2021-07-09 16:57:12,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:12,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:12,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:12,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:12,307 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:12,971 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:57:13,119 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:13,319 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:13,500 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:13,679 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:13,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:13,840 INFO L93 Difference]: Finished difference Result 18799 states and 49808 transitions. [2021-07-09 16:57:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:13,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:13,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:13,865 INFO L225 Difference]: With dead ends: 18799 [2021-07-09 16:57:13,865 INFO L226 Difference]: Without dead ends: 18799 [2021-07-09 16:57:13,865 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1431.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18799 states. [2021-07-09 16:57:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18799 to 8861. [2021-07-09 16:57:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 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 16:57:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-09 16:57:14,030 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-09 16:57:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:14,030 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-09 16:57:14,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:14,031 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-09 16:57:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:14,040 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:14,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:14,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-07-09 16:57:14,040 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:14,040 INFO L82 PathProgramCache]: Analyzing trace with hash -18999186, now seen corresponding path program 112 times [2021-07-09 16:57:14,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:14,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384888606] [2021-07-09 16:57:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:14,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:14,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384888606] [2021-07-09 16:57:14,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384888606] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:14,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:14,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:14,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108815193] [2021-07-09 16:57:14,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:14,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:14,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:14,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:14,388 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:15,022 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:57:15,175 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:15,319 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:15,496 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:15,677 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:15,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:15,820 INFO L93 Difference]: Finished difference Result 18781 states and 49862 transitions. [2021-07-09 16:57:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:15,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:15,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:15,845 INFO L225 Difference]: With dead ends: 18781 [2021-07-09 16:57:15,845 INFO L226 Difference]: Without dead ends: 18781 [2021-07-09 16:57:15,846 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1285.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:15,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18781 states. [2021-07-09 16:57:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18781 to 8829. [2021-07-09 16:57:15,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 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 16:57:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-07-09 16:57:16,006 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-07-09 16:57:16,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:16,006 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-07-09 16:57:16,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-07-09 16:57:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:16,015 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:16,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:16,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-07-09 16:57:16,015 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:16,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:16,015 INFO L82 PathProgramCache]: Analyzing trace with hash -397816500, now seen corresponding path program 113 times [2021-07-09 16:57:16,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:16,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393965897] [2021-07-09 16:57:16,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:16,353 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 16:57:16,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:16,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393965897] [2021-07-09 16:57:16,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393965897] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:16,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:16,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:16,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817985855] [2021-07-09 16:57:16,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:16,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:16,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:16,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:16,354 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:16,997 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:57:17,136 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:57:17,289 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:17,497 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:17,738 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:17,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:17,892 INFO L93 Difference]: Finished difference Result 19037 states and 50610 transitions. [2021-07-09 16:57:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:17,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:17,918 INFO L225 Difference]: With dead ends: 19037 [2021-07-09 16:57:17,919 INFO L226 Difference]: Without dead ends: 19037 [2021-07-09 16:57:17,919 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1395.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:17,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19037 states. [2021-07-09 16:57:18,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19037 to 8813. [2021-07-09 16:57:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 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 16:57:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-07-09 16:57:18,080 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-07-09 16:57:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:18,081 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-07-09 16:57:18,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-07-09 16:57:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:18,089 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:18,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:18,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-07-09 16:57:18,090 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:18,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:18,090 INFO L82 PathProgramCache]: Analyzing trace with hash -57572142, now seen corresponding path program 114 times [2021-07-09 16:57:18,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:18,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906006252] [2021-07-09 16:57:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:18,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:18,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906006252] [2021-07-09 16:57:18,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906006252] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:18,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:18,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:18,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939952300] [2021-07-09 16:57:18,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:18,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:18,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:18,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:18,450 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:19,233 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:57:19,389 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:19,593 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:19,773 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:19,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:19,933 INFO L93 Difference]: Finished difference Result 15792 states and 42126 transitions. [2021-07-09 16:57:19,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:19,933 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:19,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:19,955 INFO L225 Difference]: With dead ends: 15792 [2021-07-09 16:57:19,955 INFO L226 Difference]: Without dead ends: 15792 [2021-07-09 16:57:19,955 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1351.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:19,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15792 states. [2021-07-09 16:57:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15792 to 8757. [2021-07-09 16:57:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8757 states, 8755 states have (on average 2.6854368932038835) internal successors, (23511), 8756 states have internal predecessors, (23511), 0 states have call successors, (0), 0 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 16:57:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8757 states to 8757 states and 23511 transitions. [2021-07-09 16:57:20,106 INFO L78 Accepts]: Start accepts. Automaton has 8757 states and 23511 transitions. Word has length 114 [2021-07-09 16:57:20,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:20,106 INFO L482 AbstractCegarLoop]: Abstraction has 8757 states and 23511 transitions. [2021-07-09 16:57:20,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 8757 states and 23511 transitions. [2021-07-09 16:57:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:20,115 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:20,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:20,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-07-09 16:57:20,115 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:20,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1975320880, now seen corresponding path program 115 times [2021-07-09 16:57:20,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:20,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336577968] [2021-07-09 16:57:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:20,494 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 16:57:20,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:20,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336577968] [2021-07-09 16:57:20,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336577968] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:20,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:20,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:20,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798059123] [2021-07-09 16:57:20,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:20,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:20,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:20,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:20,495 INFO L87 Difference]: Start difference. First operand 8757 states and 23511 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:21,148 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:21,301 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:21,480 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:21,656 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:21,840 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:22,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:22,020 INFO L93 Difference]: Finished difference Result 24099 states and 63907 transitions. [2021-07-09 16:57:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:22,064 INFO L225 Difference]: With dead ends: 24099 [2021-07-09 16:57:22,064 INFO L226 Difference]: Without dead ends: 24099 [2021-07-09 16:57:22,065 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1393.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24099 states. [2021-07-09 16:57:22,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24099 to 8947. [2021-07-09 16:57:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 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 16:57:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-07-09 16:57:22,350 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-07-09 16:57:22,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:22,350 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-07-09 16:57:22,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-07-09 16:57:22,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:22,361 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:22,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:22,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-07-09 16:57:22,361 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:22,361 INFO L82 PathProgramCache]: Analyzing trace with hash 234267470, now seen corresponding path program 116 times [2021-07-09 16:57:22,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:22,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571256638] [2021-07-09 16:57:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:22,737 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 16:57:22,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:22,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571256638] [2021-07-09 16:57:22,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571256638] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:22,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:22,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:22,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251056138] [2021-07-09 16:57:22,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:22,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:22,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:22,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:22,738 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:23,395 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:23,546 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:23,737 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:23,927 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:24,133 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:24,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:24,316 INFO L93 Difference]: Finished difference Result 23677 states and 62393 transitions. [2021-07-09 16:57:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:24,316 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:24,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:24,349 INFO L225 Difference]: With dead ends: 23677 [2021-07-09 16:57:24,349 INFO L226 Difference]: Without dead ends: 23677 [2021-07-09 16:57:24,350 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1412.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23677 states. [2021-07-09 16:57:24,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23677 to 8931. [2021-07-09 16:57:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 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 16:57:24,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-09 16:57:24,569 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-09 16:57:24,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:24,569 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-09 16:57:24,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-09 16:57:24,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:24,578 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:24,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:24,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-07-09 16:57:24,579 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:24,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:24,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1404845904, now seen corresponding path program 117 times [2021-07-09 16:57:24,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:24,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277450518] [2021-07-09 16:57:24,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:24,989 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 16:57:24,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:24,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277450518] [2021-07-09 16:57:24,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277450518] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:24,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:24,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:24,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096288703] [2021-07-09 16:57:24,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:24,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:24,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:24,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:24,990 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:25,632 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:25,780 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:25,936 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:26,137 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:26,345 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:26,516 INFO L93 Difference]: Finished difference Result 21155 states and 55886 transitions. [2021-07-09 16:57:26,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:26,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:26,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:26,547 INFO L225 Difference]: With dead ends: 21155 [2021-07-09 16:57:26,547 INFO L226 Difference]: Without dead ends: 21155 [2021-07-09 16:57:26,547 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1386.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21155 states. [2021-07-09 16:57:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21155 to 8899. [2021-07-09 16:57:26,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 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 16:57:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-07-09 16:57:26,824 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-07-09 16:57:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:26,824 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-07-09 16:57:26,824 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:26,824 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-07-09 16:57:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:26,833 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:26,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:26,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-07-09 16:57:26,833 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:26,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1106445230, now seen corresponding path program 118 times [2021-07-09 16:57:26,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:26,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908575375] [2021-07-09 16:57:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:27,142 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 16:57:27,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:27,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908575375] [2021-07-09 16:57:27,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908575375] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:27,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:27,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:27,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319343448] [2021-07-09 16:57:27,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:27,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:27,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:27,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:27,143 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:27,932 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:28,071 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:28,226 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:28,406 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:28,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:28,599 INFO L93 Difference]: Finished difference Result 24717 states and 64934 transitions. [2021-07-09 16:57:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:28,599 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:28,636 INFO L225 Difference]: With dead ends: 24717 [2021-07-09 16:57:28,636 INFO L226 Difference]: Without dead ends: 24717 [2021-07-09 16:57:28,637 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1268.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24717 states. [2021-07-09 16:57:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24717 to 8931. [2021-07-09 16:57:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 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 16:57:28,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-09 16:57:28,867 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-09 16:57:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:28,867 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-09 16:57:28,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-09 16:57:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:28,876 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:28,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:28,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-07-09 16:57:28,876 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:28,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:28,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1103143120, now seen corresponding path program 119 times [2021-07-09 16:57:28,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:28,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015869227] [2021-07-09 16:57:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:29,191 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 16:57:29,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:29,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015869227] [2021-07-09 16:57:29,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015869227] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:29,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:29,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:29,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036079264] [2021-07-09 16:57:29,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:29,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:29,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:29,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:29,192 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:29,842 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:29,998 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:30,158 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:30,349 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:30,545 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:30,720 INFO L93 Difference]: Finished difference Result 25530 states and 66738 transitions. [2021-07-09 16:57:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:30,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:30,757 INFO L225 Difference]: With dead ends: 25530 [2021-07-09 16:57:30,758 INFO L226 Difference]: Without dead ends: 25530 [2021-07-09 16:57:30,758 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1382.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:30,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25530 states. [2021-07-09 16:57:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25530 to 8915. [2021-07-09 16:57:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 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 16:57:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-07-09 16:57:31,046 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-07-09 16:57:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:31,046 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-07-09 16:57:31,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-07-09 16:57:31,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:31,055 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:31,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:31,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-07-09 16:57:31,056 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:31,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:31,057 INFO L82 PathProgramCache]: Analyzing trace with hash 828918322, now seen corresponding path program 120 times [2021-07-09 16:57:31,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:31,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712996156] [2021-07-09 16:57:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:31,371 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 16:57:31,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:31,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712996156] [2021-07-09 16:57:31,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712996156] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:31,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:31,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:31,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828720526] [2021-07-09 16:57:31,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:31,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:31,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:31,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:31,373 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:32,008 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:32,163 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:32,324 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:32,510 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:32,707 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:32,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:32,880 INFO L93 Difference]: Finished difference Result 24856 states and 65151 transitions. [2021-07-09 16:57:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:32,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:32,918 INFO L225 Difference]: With dead ends: 24856 [2021-07-09 16:57:32,918 INFO L226 Difference]: Without dead ends: 24856 [2021-07-09 16:57:32,918 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1371.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24856 states. [2021-07-09 16:57:33,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24856 to 8931. [2021-07-09 16:57:33,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 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 16:57:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-09 16:57:33,138 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-09 16:57:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:33,138 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-09 16:57:33,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:33,138 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-09 16:57:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:33,147 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:33,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:33,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-07-09 16:57:33,147 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:33,148 INFO L82 PathProgramCache]: Analyzing trace with hash 580371342, now seen corresponding path program 121 times [2021-07-09 16:57:33,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:33,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568615476] [2021-07-09 16:57:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:33,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:33,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568615476] [2021-07-09 16:57:33,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568615476] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:33,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:33,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:33,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085661902] [2021-07-09 16:57:33,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:33,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:33,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:33,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:33,429 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:34,137 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:34,276 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:34,436 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:34,614 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:34,751 INFO L93 Difference]: Finished difference Result 21921 states and 57677 transitions. [2021-07-09 16:57:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:34,752 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:34,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:34,782 INFO L225 Difference]: With dead ends: 21921 [2021-07-09 16:57:34,782 INFO L226 Difference]: Without dead ends: 21921 [2021-07-09 16:57:34,782 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1200.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:34,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21921 states. [2021-07-09 16:57:34,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21921 to 8867. [2021-07-09 16:57:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 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 16:57:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-07-09 16:57:35,011 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-07-09 16:57:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:35,011 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-07-09 16:57:35,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-07-09 16:57:35,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:35,021 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:35,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:35,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-07-09 16:57:35,021 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:35,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1460719792, now seen corresponding path program 122 times [2021-07-09 16:57:35,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:35,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082778426] [2021-07-09 16:57:35,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:35,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:35,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082778426] [2021-07-09 16:57:35,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082778426] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:35,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:35,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:35,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357203341] [2021-07-09 16:57:35,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:35,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:35,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:35,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:35,322 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:36,128 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:36,271 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:36,430 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:36,606 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:36,801 INFO L93 Difference]: Finished difference Result 21093 states and 55740 transitions. [2021-07-09 16:57:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:36,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:36,833 INFO L225 Difference]: With dead ends: 21093 [2021-07-09 16:57:36,834 INFO L226 Difference]: Without dead ends: 21093 [2021-07-09 16:57:36,834 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1259.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21093 states. [2021-07-09 16:57:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21093 to 8931. [2021-07-09 16:57:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 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 16:57:37,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-09 16:57:37,043 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-09 16:57:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:37,043 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-09 16:57:37,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-09 16:57:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:37,055 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:37,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:37,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-07-09 16:57:37,055 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:37,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:37,056 INFO L82 PathProgramCache]: Analyzing trace with hash -624659154, now seen corresponding path program 123 times [2021-07-09 16:57:37,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:37,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474869652] [2021-07-09 16:57:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:37,388 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 16:57:37,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:37,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474869652] [2021-07-09 16:57:37,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474869652] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:37,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:37,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:37,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025918607] [2021-07-09 16:57:37,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:37,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:37,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:37,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:37,389 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:38,029 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:38,180 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:38,336 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:38,523 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:38,718 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:38,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:38,885 INFO L93 Difference]: Finished difference Result 21906 states and 57544 transitions. [2021-07-09 16:57:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:38,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:38,917 INFO L225 Difference]: With dead ends: 21906 [2021-07-09 16:57:38,917 INFO L226 Difference]: Without dead ends: 21906 [2021-07-09 16:57:38,917 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1377.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:38,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21906 states. [2021-07-09 16:57:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21906 to 8915. [2021-07-09 16:57:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 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 16:57:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-07-09 16:57:39,111 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-07-09 16:57:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:39,111 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-07-09 16:57:39,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-07-09 16:57:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:39,120 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:39,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:39,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-07-09 16:57:39,120 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:39,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:39,120 INFO L82 PathProgramCache]: Analyzing trace with hash -898883952, now seen corresponding path program 124 times [2021-07-09 16:57:39,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:39,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647295477] [2021-07-09 16:57:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:39,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:39,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647295477] [2021-07-09 16:57:39,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647295477] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:39,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:39,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:39,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866699128] [2021-07-09 16:57:39,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:39,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:39,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:39,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:39,527 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:40,195 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:40,354 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:40,517 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:40,709 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:40,910 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:41,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:41,112 INFO L93 Difference]: Finished difference Result 25019 states and 65494 transitions. [2021-07-09 16:57:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:41,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:41,150 INFO L225 Difference]: With dead ends: 25019 [2021-07-09 16:57:41,151 INFO L226 Difference]: Without dead ends: 25019 [2021-07-09 16:57:41,151 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1378.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25019 states. [2021-07-09 16:57:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25019 to 8931. [2021-07-09 16:57:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 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 16:57:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-09 16:57:41,372 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-09 16:57:41,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:41,372 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-09 16:57:41,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:41,372 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-09 16:57:41,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:41,383 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:41,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:41,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-07-09 16:57:41,383 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:41,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:41,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1147430932, now seen corresponding path program 125 times [2021-07-09 16:57:41,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:41,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971477849] [2021-07-09 16:57:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:41,696 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 16:57:41,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:41,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971477849] [2021-07-09 16:57:41,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971477849] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:41,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:41,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:41,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752277499] [2021-07-09 16:57:41,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:41,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:41,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:41,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:41,697 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:42,332 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:42,488 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:42,651 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:42,829 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:43,027 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:43,177 INFO L93 Difference]: Finished difference Result 22084 states and 58020 transitions. [2021-07-09 16:57:43,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:43,177 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:43,208 INFO L225 Difference]: With dead ends: 22084 [2021-07-09 16:57:43,208 INFO L226 Difference]: Without dead ends: 22084 [2021-07-09 16:57:43,208 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1358.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:43,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22084 states. [2021-07-09 16:57:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22084 to 8899. [2021-07-09 16:57:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 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 16:57:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-07-09 16:57:43,418 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-07-09 16:57:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:43,419 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-07-09 16:57:43,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-07-09 16:57:43,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:43,429 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:43,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:43,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-07-09 16:57:43,429 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:43,429 INFO L82 PathProgramCache]: Analyzing trace with hash 331031854, now seen corresponding path program 126 times [2021-07-09 16:57:43,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:43,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324720264] [2021-07-09 16:57:43,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:43,858 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 16:57:43,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:43,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324720264] [2021-07-09 16:57:43,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324720264] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:43,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:43,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:43,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748147740] [2021-07-09 16:57:43,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:43,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:43,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:43,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:43,859 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:44,509 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:44,660 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:44,834 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:45,031 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:45,242 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:45,447 INFO L93 Difference]: Finished difference Result 21216 states and 55911 transitions. [2021-07-09 16:57:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:45,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:45,481 INFO L225 Difference]: With dead ends: 21216 [2021-07-09 16:57:45,481 INFO L226 Difference]: Without dead ends: 21216 [2021-07-09 16:57:45,482 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1390.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21216 states. [2021-07-09 16:57:45,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21216 to 8947. [2021-07-09 16:57:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 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 16:57:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-07-09 16:57:45,672 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-07-09 16:57:45,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:45,672 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-07-09 16:57:45,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-07-09 16:57:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:45,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:45,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:45,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-07-09 16:57:45,682 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:45,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:45,682 INFO L82 PathProgramCache]: Analyzing trace with hash 82484874, now seen corresponding path program 127 times [2021-07-09 16:57:45,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:45,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036555415] [2021-07-09 16:57:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:46,004 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 16:57:46,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:46,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036555415] [2021-07-09 16:57:46,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036555415] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:46,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:46,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:46,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800791417] [2021-07-09 16:57:46,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:46,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:46,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:46,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:46,005 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:46,661 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:46,809 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:46,984 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:47,167 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:47,373 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:47,532 INFO L93 Difference]: Finished difference Result 21056 states and 55509 transitions. [2021-07-09 16:57:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:47,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:47,561 INFO L225 Difference]: With dead ends: 21056 [2021-07-09 16:57:47,562 INFO L226 Difference]: Without dead ends: 21056 [2021-07-09 16:57:47,562 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1372.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:47,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21056 states. [2021-07-09 16:57:47,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21056 to 8931. [2021-07-09 16:57:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 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 16:57:47,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-09 16:57:47,752 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-09 16:57:47,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:47,753 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-09 16:57:47,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-09 16:57:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:47,762 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:47,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:47,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-07-09 16:57:47,762 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:47,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1074332430, now seen corresponding path program 128 times [2021-07-09 16:57:47,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:47,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321727417] [2021-07-09 16:57:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:48,191 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 16:57:48,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:48,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321727417] [2021-07-09 16:57:48,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321727417] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:48,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:48,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:48,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716976178] [2021-07-09 16:57:48,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:48,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:48,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:48,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:48,192 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:48,829 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:48,976 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:49,126 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:49,318 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:49,526 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:49,682 INFO L93 Difference]: Finished difference Result 18489 states and 48963 transitions. [2021-07-09 16:57:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:49,707 INFO L225 Difference]: With dead ends: 18489 [2021-07-09 16:57:49,707 INFO L226 Difference]: Without dead ends: 18489 [2021-07-09 16:57:49,708 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1369.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18489 states. [2021-07-09 16:57:49,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18489 to 8803. [2021-07-09 16:57:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8801 states have (on average 2.6865128962617884) internal successors, (23644), 8802 states have internal predecessors, (23644), 0 states have call successors, (0), 0 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 16:57:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 23644 transitions. [2021-07-09 16:57:49,874 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 23644 transitions. Word has length 114 [2021-07-09 16:57:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:49,874 INFO L482 AbstractCegarLoop]: Abstraction has 8803 states and 23644 transitions. [2021-07-09 16:57:49,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 23644 transitions. [2021-07-09 16:57:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:49,883 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:49,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:49,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-07-09 16:57:49,883 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:49,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:49,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1481625776, now seen corresponding path program 129 times [2021-07-09 16:57:49,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:49,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440116862] [2021-07-09 16:57:49,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:50,210 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 16:57:50,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:50,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440116862] [2021-07-09 16:57:50,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440116862] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:50,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:50,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:50,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217819730] [2021-07-09 16:57:50,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:50,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:50,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:50,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:50,212 INFO L87 Difference]: Start difference. First operand 8803 states and 23644 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:50,869 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:51,015 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:51,187 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:51,347 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:51,527 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:51,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:51,700 INFO L93 Difference]: Finished difference Result 24421 states and 64745 transitions. [2021-07-09 16:57:51,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:51,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:51,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:51,740 INFO L225 Difference]: With dead ends: 24421 [2021-07-09 16:57:51,740 INFO L226 Difference]: Without dead ends: 24421 [2021-07-09 16:57:51,740 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1344.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:51,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24421 states. [2021-07-09 16:57:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24421 to 8899. [2021-07-09 16:57:52,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 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 16:57:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-07-09 16:57:52,022 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-07-09 16:57:52,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:52,023 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-07-09 16:57:52,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-07-09 16:57:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:52,038 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:52,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:52,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-07-09 16:57:52,038 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:52,038 INFO L82 PathProgramCache]: Analyzing trace with hash -603753170, now seen corresponding path program 130 times [2021-07-09 16:57:52,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:52,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910844660] [2021-07-09 16:57:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:52,415 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 16:57:52,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:52,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910844660] [2021-07-09 16:57:52,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910844660] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:52,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:52,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:52,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444204319] [2021-07-09 16:57:52,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:52,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:52,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:52,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:52,416 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:53,137 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:53,293 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:53,476 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:53,675 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:57:53,906 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:57:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:54,128 INFO L93 Difference]: Finished difference Result 23999 states and 63231 transitions. [2021-07-09 16:57:54,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:54,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:54,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:54,160 INFO L225 Difference]: With dead ends: 23999 [2021-07-09 16:57:54,161 INFO L226 Difference]: Without dead ends: 23999 [2021-07-09 16:57:54,161 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1520.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:54,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23999 states. [2021-07-09 16:57:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23999 to 8883. [2021-07-09 16:57:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 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 16:57:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-09 16:57:54,370 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-09 16:57:54,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:54,371 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-09 16:57:54,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:54,371 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-09 16:57:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:54,379 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:54,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:54,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-07-09 16:57:54,380 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:54,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:54,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2052100752, now seen corresponding path program 131 times [2021-07-09 16:57:54,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:54,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90113268] [2021-07-09 16:57:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:54,712 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 16:57:54,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:54,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90113268] [2021-07-09 16:57:54,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90113268] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:54,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:54,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:54,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013412315] [2021-07-09 16:57:54,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:54,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:54,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:54,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:54,713 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:55,374 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:55,525 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:57:55,681 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:57:55,880 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:56,093 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:56,274 INFO L93 Difference]: Finished difference Result 21477 states and 56724 transitions. [2021-07-09 16:57:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:56,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:56,306 INFO L225 Difference]: With dead ends: 21477 [2021-07-09 16:57:56,307 INFO L226 Difference]: Without dead ends: 21477 [2021-07-09 16:57:56,307 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1377.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21477 states. [2021-07-09 16:57:56,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21477 to 8851. [2021-07-09 16:57:56,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 8849 states have (on average 2.6875353147248275) internal successors, (23782), 8850 states have internal predecessors, (23782), 0 states have call successors, (0), 0 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 16:57:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 23782 transitions. [2021-07-09 16:57:56,513 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 23782 transitions. Word has length 114 [2021-07-09 16:57:56,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:56,513 INFO L482 AbstractCegarLoop]: Abstraction has 8851 states and 23782 transitions. [2021-07-09 16:57:56,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:56,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 23782 transitions. [2021-07-09 16:57:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:56,523 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:56,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:56,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-07-09 16:57:56,523 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:56,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1944465870, now seen corresponding path program 132 times [2021-07-09 16:57:56,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:56,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426704912] [2021-07-09 16:57:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:56,837 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 16:57:56,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:56,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426704912] [2021-07-09 16:57:56,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426704912] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:56,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:56,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:56,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591921779] [2021-07-09 16:57:56,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:56,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:56,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:56,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:56,838 INFO L87 Difference]: Start difference. First operand 8851 states and 23782 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:57,545 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:57,708 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:57,875 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:57:58,056 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:57:58,258 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:57:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:58,452 INFO L93 Difference]: Finished difference Result 21287 states and 56210 transitions. [2021-07-09 16:57:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:57:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:57:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:58,483 INFO L225 Difference]: With dead ends: 21287 [2021-07-09 16:57:58,483 INFO L226 Difference]: Without dead ends: 21287 [2021-07-09 16:57:58,483 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1365.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:57:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21287 states. [2021-07-09 16:57:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21287 to 8883. [2021-07-09 16:57:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 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 16:57:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-09 16:57:58,671 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-09 16:57:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:58,671 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-09 16:57:58,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-09 16:57:58,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:57:58,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:58,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:58,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-07-09 16:57:58,681 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:58,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:58,681 INFO L82 PathProgramCache]: Analyzing trace with hash 265122480, now seen corresponding path program 133 times [2021-07-09 16:57:58,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:58,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241397267] [2021-07-09 16:57:58,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:58,998 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 16:57:58,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:58,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241397267] [2021-07-09 16:57:58,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241397267] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:58,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:58,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:57:58,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660448592] [2021-07-09 16:57:58,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:57:58,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:58,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:57:58,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:57:58,999 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:57:59,632 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:57:59,789 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:57:59,950 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:00,139 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:00,334 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:00,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:00,517 INFO L93 Difference]: Finished difference Result 22100 states and 58014 transitions. [2021-07-09 16:58:00,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:00,517 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:00,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:00,551 INFO L225 Difference]: With dead ends: 22100 [2021-07-09 16:58:00,551 INFO L226 Difference]: Without dead ends: 22100 [2021-07-09 16:58:00,552 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1368.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:00,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22100 states. [2021-07-09 16:58:00,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22100 to 8867. [2021-07-09 16:58:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 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 16:58:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-07-09 16:58:00,756 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-07-09 16:58:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:00,756 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-07-09 16:58:00,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-07-09 16:58:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:00,765 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:00,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:00,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-07-09 16:58:00,765 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:00,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:00,766 INFO L82 PathProgramCache]: Analyzing trace with hash -9102318, now seen corresponding path program 134 times [2021-07-09 16:58:00,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:00,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650562533] [2021-07-09 16:58:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:01,081 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 16:58:01,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:01,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650562533] [2021-07-09 16:58:01,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650562533] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:01,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:01,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:01,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903807118] [2021-07-09 16:58:01,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:01,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:01,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:01,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:01,082 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:01,778 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:01,938 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:02,108 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:02,297 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:02,497 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:02,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:02,671 INFO L93 Difference]: Finished difference Result 21426 states and 56427 transitions. [2021-07-09 16:58:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:02,671 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:02,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:02,701 INFO L225 Difference]: With dead ends: 21426 [2021-07-09 16:58:02,701 INFO L226 Difference]: Without dead ends: 21426 [2021-07-09 16:58:02,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1419.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:02,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21426 states. [2021-07-09 16:58:02,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21426 to 8883. [2021-07-09 16:58:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 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 16:58:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-09 16:58:02,901 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-09 16:58:02,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:02,901 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-09 16:58:02,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-09 16:58:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:02,912 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:02,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:02,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-07-09 16:58:02,912 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:02,913 INFO L82 PathProgramCache]: Analyzing trace with hash -257649298, now seen corresponding path program 135 times [2021-07-09 16:58:02,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:02,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504462006] [2021-07-09 16:58:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:03,188 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 16:58:03,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:03,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504462006] [2021-07-09 16:58:03,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504462006] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:03,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:03,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:03,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71653078] [2021-07-09 16:58:03,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:03,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:03,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:03,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:03,189 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:03,900 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:04,040 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:04,192 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:04,367 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:04,522 INFO L93 Difference]: Finished difference Result 18773 states and 49667 transitions. [2021-07-09 16:58:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:04,522 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:04,550 INFO L225 Difference]: With dead ends: 18773 [2021-07-09 16:58:04,550 INFO L226 Difference]: Without dead ends: 18773 [2021-07-09 16:58:04,551 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1169.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:04,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18773 states. [2021-07-09 16:58:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18773 to 8819. [2021-07-09 16:58:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8819 states, 8817 states have (on average 2.6868549393217647) internal successors, (23690), 8818 states have internal predecessors, (23690), 0 states have call successors, (0), 0 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 16:58:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 23690 transitions. [2021-07-09 16:58:04,727 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 23690 transitions. Word has length 114 [2021-07-09 16:58:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:04,727 INFO L482 AbstractCegarLoop]: Abstraction has 8819 states and 23690 transitions. [2021-07-09 16:58:04,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 23690 transitions. [2021-07-09 16:58:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:04,736 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:04,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:04,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-07-09 16:58:04,737 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:04,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:04,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1386947538, now seen corresponding path program 136 times [2021-07-09 16:58:04,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:04,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167758313] [2021-07-09 16:58:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:05,040 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 16:58:05,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:05,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167758313] [2021-07-09 16:58:05,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167758313] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:05,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:05,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:05,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706282205] [2021-07-09 16:58:05,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:05,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:05,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:05,041 INFO L87 Difference]: Start difference. First operand 8819 states and 23690 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:05,760 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:05,963 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:06,150 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:06,364 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:06,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:06,539 INFO L93 Difference]: Finished difference Result 18989 states and 50467 transitions. [2021-07-09 16:58:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:06,540 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:06,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:06,570 INFO L225 Difference]: With dead ends: 18989 [2021-07-09 16:58:06,570 INFO L226 Difference]: Without dead ends: 18989 [2021-07-09 16:58:06,570 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1310.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18989 states. [2021-07-09 16:58:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18989 to 8883. [2021-07-09 16:58:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 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 16:58:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-09 16:58:06,780 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-09 16:58:06,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:06,780 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-09 16:58:06,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-09 16:58:06,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:06,791 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:06,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:06,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-07-09 16:58:06,792 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:06,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:06,792 INFO L82 PathProgramCache]: Analyzing trace with hash -698431408, now seen corresponding path program 137 times [2021-07-09 16:58:06,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:06,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72118426] [2021-07-09 16:58:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:07,166 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 16:58:07,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:07,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72118426] [2021-07-09 16:58:07,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72118426] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:07,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:07,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:07,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862567506] [2021-07-09 16:58:07,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:07,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:07,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:07,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:07,167 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:07,824 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:58:07,976 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:08,159 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:08,353 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:08,549 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:08,737 INFO L93 Difference]: Finished difference Result 18567 states and 48953 transitions. [2021-07-09 16:58:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:08,737 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:08,767 INFO L225 Difference]: With dead ends: 18567 [2021-07-09 16:58:08,767 INFO L226 Difference]: Without dead ends: 18567 [2021-07-09 16:58:08,767 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1388.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18567 states. [2021-07-09 16:58:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18567 to 8867. [2021-07-09 16:58:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 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 16:58:08,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-07-09 16:58:08,971 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-07-09 16:58:08,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:08,972 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-07-09 16:58:08,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-07-09 16:58:08,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:08,982 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:08,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:08,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-07-09 16:58:08,982 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:08,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:08,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1957422514, now seen corresponding path program 138 times [2021-07-09 16:58:08,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:08,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128254240] [2021-07-09 16:58:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:09,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:09,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128254240] [2021-07-09 16:58:09,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128254240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:09,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:09,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:09,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349277] [2021-07-09 16:58:09,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:09,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:09,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:09,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:09,321 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:10,097 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:10,249 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:58:10,443 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:10,698 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:10,848 INFO L93 Difference]: Finished difference Result 18549 states and 49007 transitions. [2021-07-09 16:58:10,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:10,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:10,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:10,877 INFO L225 Difference]: With dead ends: 18549 [2021-07-09 16:58:10,878 INFO L226 Difference]: Without dead ends: 18549 [2021-07-09 16:58:10,878 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1408.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18549 states. [2021-07-09 16:58:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18549 to 8835. [2021-07-09 16:58:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8835 states, 8833 states have (on average 2.687195743235594) internal successors, (23736), 8834 states have internal predecessors, (23736), 0 states have call successors, (0), 0 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 16:58:11,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 23736 transitions. [2021-07-09 16:58:11,083 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 23736 transitions. Word has length 114 [2021-07-09 16:58:11,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:11,084 INFO L482 AbstractCegarLoop]: Abstraction has 8835 states and 23736 transitions. [2021-07-09 16:58:11,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 23736 transitions. [2021-07-09 16:58:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:11,094 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:11,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:11,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-07-09 16:58:11,095 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:11,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:11,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1578605200, now seen corresponding path program 139 times [2021-07-09 16:58:11,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:11,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779475255] [2021-07-09 16:58:11,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:11,464 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 16:58:11,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:11,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779475255] [2021-07-09 16:58:11,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779475255] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:11,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:11,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:11,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994107843] [2021-07-09 16:58:11,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:11,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:11,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:11,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:11,465 INFO L87 Difference]: Start difference. First operand 8835 states and 23736 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:12,234 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:58:12,393 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:58:12,589 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:12,790 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:12,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:12,940 INFO L93 Difference]: Finished difference Result 15623 states and 41436 transitions. [2021-07-09 16:58:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:12,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:12,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:12,964 INFO L225 Difference]: With dead ends: 15623 [2021-07-09 16:58:12,964 INFO L226 Difference]: Without dead ends: 15623 [2021-07-09 16:58:12,964 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1364.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15623 states. [2021-07-09 16:58:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15623 to 8771. [2021-07-09 16:58:13,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8771 states, 8769 states have (on average 2.685825065571901) internal successors, (23552), 8770 states have internal predecessors, (23552), 0 states have call successors, (0), 0 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 16:58:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8771 states to 8771 states and 23552 transitions. [2021-07-09 16:58:13,139 INFO L78 Accepts]: Start accepts. Automaton has 8771 states and 23552 transitions. Word has length 114 [2021-07-09 16:58:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:13,140 INFO L482 AbstractCegarLoop]: Abstraction has 8771 states and 23552 transitions. [2021-07-09 16:58:13,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8771 states and 23552 transitions. [2021-07-09 16:58:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:13,150 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:13,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:13,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-07-09 16:58:13,151 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash -678261586, now seen corresponding path program 140 times [2021-07-09 16:58:13,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:13,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398100888] [2021-07-09 16:58:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:13,459 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 16:58:13,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:13,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398100888] [2021-07-09 16:58:13,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398100888] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:13,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:13,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:13,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469178939] [2021-07-09 16:58:13,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:13,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:13,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:13,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:13,460 INFO L87 Difference]: Start difference. First operand 8771 states and 23552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:14,310 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:14,462 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:14,643 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:14,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:14,787 INFO L93 Difference]: Finished difference Result 17512 states and 46422 transitions. [2021-07-09 16:58:14,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:14,787 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:14,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:14,815 INFO L225 Difference]: With dead ends: 17512 [2021-07-09 16:58:14,815 INFO L226 Difference]: Without dead ends: 17512 [2021-07-09 16:58:14,815 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1204.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17512 states. [2021-07-09 16:58:15,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17512 to 8943. [2021-07-09 16:58:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 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 16:58:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-07-09 16:58:15,090 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-07-09 16:58:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:15,090 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-07-09 16:58:15,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:15,090 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-07-09 16:58:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:15,101 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:15,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:15,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-07-09 16:58:15,101 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:15,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1531326764, now seen corresponding path program 141 times [2021-07-09 16:58:15,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:15,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312316294] [2021-07-09 16:58:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:15,468 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 16:58:15,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:15,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312316294] [2021-07-09 16:58:15,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312316294] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:15,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:15,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:15,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086884908] [2021-07-09 16:58:15,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:15,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:15,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:15,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:15,469 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:16,203 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:16,387 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:16,591 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:16,804 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:16,952 INFO L93 Difference]: Finished difference Result 17090 states and 44908 transitions. [2021-07-09 16:58:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:16,975 INFO L225 Difference]: With dead ends: 17090 [2021-07-09 16:58:16,976 INFO L226 Difference]: Without dead ends: 17090 [2021-07-09 16:58:16,976 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1374.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17090 states. [2021-07-09 16:58:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17090 to 8927. [2021-07-09 16:58:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 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 16:58:17,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-09 16:58:17,141 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-09 16:58:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:17,142 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-09 16:58:17,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-09 16:58:17,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:17,151 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:17,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:17,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-07-09 16:58:17,151 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:17,151 INFO L82 PathProgramCache]: Analyzing trace with hash -107786610, now seen corresponding path program 142 times [2021-07-09 16:58:17,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:17,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871874300] [2021-07-09 16:58:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:17,478 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 16:58:17,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:17,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871874300] [2021-07-09 16:58:17,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871874300] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:17,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:17,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:17,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128133853] [2021-07-09 16:58:17,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:17,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:17,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:17,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:17,479 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:18,257 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:18,408 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:58:18,597 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:18,799 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:18,936 INFO L93 Difference]: Finished difference Result 14568 states and 38401 transitions. [2021-07-09 16:58:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:18,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:18,956 INFO L225 Difference]: With dead ends: 14568 [2021-07-09 16:58:18,956 INFO L226 Difference]: Without dead ends: 14568 [2021-07-09 16:58:18,956 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1353.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14568 states. [2021-07-09 16:58:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14568 to 8895. [2021-07-09 16:58:19,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 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 16:58:19,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-07-09 16:58:19,095 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-07-09 16:58:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:19,095 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-07-09 16:58:19,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:19,095 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-07-09 16:58:19,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:19,105 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:19,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:19,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-07-09 16:58:19,105 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:19,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:19,106 INFO L82 PathProgramCache]: Analyzing trace with hash 190614064, now seen corresponding path program 143 times [2021-07-09 16:58:19,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:19,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146216163] [2021-07-09 16:58:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:19,515 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 16:58:19,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:19,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146216163] [2021-07-09 16:58:19,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146216163] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:19,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:19,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:19,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828780840] [2021-07-09 16:58:19,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:19,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:19,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:19,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:19,516 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:20,328 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:20,497 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:20,687 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:20,890 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:21,055 INFO L93 Difference]: Finished difference Result 18130 states and 47449 transitions. [2021-07-09 16:58:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:21,082 INFO L225 Difference]: With dead ends: 18130 [2021-07-09 16:58:21,082 INFO L226 Difference]: Without dead ends: 18130 [2021-07-09 16:58:21,082 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1378.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:21,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2021-07-09 16:58:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 8927. [2021-07-09 16:58:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 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 16:58:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-09 16:58:21,272 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-09 16:58:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:21,272 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-09 16:58:21,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-09 16:58:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:21,281 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:21,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:21,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-07-09 16:58:21,282 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:21,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:21,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1894764882, now seen corresponding path program 144 times [2021-07-09 16:58:21,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:21,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766670662] [2021-07-09 16:58:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:21,566 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 16:58:21,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:21,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766670662] [2021-07-09 16:58:21,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766670662] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:21,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:21,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:21,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231292232] [2021-07-09 16:58:21,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:21,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:21,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:21,568 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:22,173 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:22,327 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:22,475 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:22,639 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:22,805 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:22,974 INFO L93 Difference]: Finished difference Result 18943 states and 49253 transitions. [2021-07-09 16:58:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:22,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:22,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:23,013 INFO L225 Difference]: With dead ends: 18943 [2021-07-09 16:58:23,013 INFO L226 Difference]: Without dead ends: 18943 [2021-07-09 16:58:23,013 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1258.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:23,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18943 states. [2021-07-09 16:58:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18943 to 8911. [2021-07-09 16:58:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 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 16:58:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-07-09 16:58:23,284 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-07-09 16:58:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:23,284 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-07-09 16:58:23,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-07-09 16:58:23,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:23,297 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:23,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:23,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-07-09 16:58:23,297 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2125977616, now seen corresponding path program 145 times [2021-07-09 16:58:23,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:23,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757607543] [2021-07-09 16:58:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:23,665 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 16:58:23,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:23,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757607543] [2021-07-09 16:58:23,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757607543] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:23,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:23,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:23,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838570862] [2021-07-09 16:58:23,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:23,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:23,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:23,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:23,666 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:24,368 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:24,528 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:24,693 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:24,890 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:25,092 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:25,270 INFO L93 Difference]: Finished difference Result 18269 states and 47666 transitions. [2021-07-09 16:58:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:25,299 INFO L225 Difference]: With dead ends: 18269 [2021-07-09 16:58:25,299 INFO L226 Difference]: Without dead ends: 18269 [2021-07-09 16:58:25,299 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1370.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:25,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18269 states. [2021-07-09 16:58:25,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18269 to 8927. [2021-07-09 16:58:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 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 16:58:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-09 16:58:25,500 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-09 16:58:25,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:25,500 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-09 16:58:25,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-09 16:58:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:25,510 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:25,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:25,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-07-09 16:58:25,511 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:25,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:25,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1877430636, now seen corresponding path program 146 times [2021-07-09 16:58:25,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:25,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284408532] [2021-07-09 16:58:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:25,829 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 16:58:25,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:25,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284408532] [2021-07-09 16:58:25,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284408532] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:25,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:25,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:25,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250997290] [2021-07-09 16:58:25,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:25,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:25,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:25,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:25,830 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:26,566 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:26,738 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:26,931 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:27,146 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:27,277 INFO L93 Difference]: Finished difference Result 15334 states and 40192 transitions. [2021-07-09 16:58:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:27,277 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:27,297 INFO L225 Difference]: With dead ends: 15334 [2021-07-09 16:58:27,297 INFO L226 Difference]: Without dead ends: 15334 [2021-07-09 16:58:27,297 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1336.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:27,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15334 states. [2021-07-09 16:58:27,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15334 to 8863. [2021-07-09 16:58:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8863 states, 8861 states have (on average 2.6879584696986796) internal successors, (23818), 8862 states have internal predecessors, (23818), 0 states have call successors, (0), 0 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 16:58:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8863 states to 8863 states and 23818 transitions. [2021-07-09 16:58:27,458 INFO L78 Accepts]: Start accepts. Automaton has 8863 states and 23818 transitions. Word has length 114 [2021-07-09 16:58:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:27,459 INFO L482 AbstractCegarLoop]: Abstraction has 8863 states and 23818 transitions. [2021-07-09 16:58:27,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8863 states and 23818 transitions. [2021-07-09 16:58:27,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:27,467 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:27,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:27,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-07-09 16:58:27,468 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:27,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:27,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1537188210, now seen corresponding path program 147 times [2021-07-09 16:58:27,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:27,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770045617] [2021-07-09 16:58:27,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:27,780 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 16:58:27,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:27,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770045617] [2021-07-09 16:58:27,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770045617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:27,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:27,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:27,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621273343] [2021-07-09 16:58:27,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:27,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:27,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:27,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:27,781 INFO L87 Difference]: Start difference. First operand 8863 states and 23818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:28,446 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:28,668 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:28,844 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:29,034 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:29,248 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:29,403 INFO L93 Difference]: Finished difference Result 18688 states and 48979 transitions. [2021-07-09 16:58:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:29,430 INFO L225 Difference]: With dead ends: 18688 [2021-07-09 16:58:29,430 INFO L226 Difference]: Without dead ends: 18688 [2021-07-09 16:58:29,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1497.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18688 states. [2021-07-09 16:58:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18688 to 8927. [2021-07-09 16:58:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 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 16:58:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-09 16:58:29,621 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-09 16:58:29,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:29,621 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-09 16:58:29,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-09 16:58:29,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:29,630 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:29,630 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:29,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-07-09 16:58:29,630 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:29,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:29,631 INFO L82 PathProgramCache]: Analyzing trace with hash 672400140, now seen corresponding path program 148 times [2021-07-09 16:58:29,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:29,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045049210] [2021-07-09 16:58:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:29,947 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 16:58:29,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:29,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045049210] [2021-07-09 16:58:29,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045049210] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:29,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:29,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:29,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551822563] [2021-07-09 16:58:29,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:29,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:29,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:29,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:29,948 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:30,865 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:31,031 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:31,200 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:31,369 INFO L93 Difference]: Finished difference Result 19501 states and 50783 transitions. [2021-07-09 16:58:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:31,369 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:31,395 INFO L225 Difference]: With dead ends: 19501 [2021-07-09 16:58:31,395 INFO L226 Difference]: Without dead ends: 19501 [2021-07-09 16:58:31,395 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1260.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19501 states. [2021-07-09 16:58:31,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19501 to 8911. [2021-07-09 16:58:31,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 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 16:58:31,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-07-09 16:58:31,592 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-07-09 16:58:31,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:31,592 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-07-09 16:58:31,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-07-09 16:58:31,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:31,601 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:31,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:31,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-07-09 16:58:31,601 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:31,602 INFO L82 PathProgramCache]: Analyzing trace with hash 398175342, now seen corresponding path program 149 times [2021-07-09 16:58:31,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:31,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049009913] [2021-07-09 16:58:31,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:31,913 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 16:58:31,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:31,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049009913] [2021-07-09 16:58:31,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049009913] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:31,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:31,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:31,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883283939] [2021-07-09 16:58:31,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:31,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:31,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:31,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:31,914 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:32,541 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:32,695 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:32,854 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:33,088 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:33,283 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:33,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:33,451 INFO L93 Difference]: Finished difference Result 22614 states and 58733 transitions. [2021-07-09 16:58:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:33,451 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:33,485 INFO L225 Difference]: With dead ends: 22614 [2021-07-09 16:58:33,485 INFO L226 Difference]: Without dead ends: 22614 [2021-07-09 16:58:33,486 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1407.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:33,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2021-07-09 16:58:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 8927. [2021-07-09 16:58:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 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 16:58:33,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-09 16:58:33,695 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-09 16:58:33,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:33,695 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-09 16:58:33,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-09 16:58:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:33,704 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:33,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:33,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-07-09 16:58:33,704 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:33,704 INFO L82 PathProgramCache]: Analyzing trace with hash 149628362, now seen corresponding path program 150 times [2021-07-09 16:58:33,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:33,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090719093] [2021-07-09 16:58:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:34,040 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 16:58:34,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:34,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090719093] [2021-07-09 16:58:34,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090719093] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:34,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:34,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:34,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379017037] [2021-07-09 16:58:34,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:34,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:34,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:34,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:34,041 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:34,686 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:34,839 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:35,000 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:35,178 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:35,388 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:35,548 INFO L93 Difference]: Finished difference Result 19679 states and 51259 transitions. [2021-07-09 16:58:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:35,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:35,579 INFO L225 Difference]: With dead ends: 19679 [2021-07-09 16:58:35,580 INFO L226 Difference]: Without dead ends: 19679 [2021-07-09 16:58:35,580 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1392.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:35,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19679 states. [2021-07-09 16:58:35,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19679 to 8895. [2021-07-09 16:58:35,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 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 16:58:35,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-07-09 16:58:35,776 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-07-09 16:58:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:35,776 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-07-09 16:58:35,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-07-09 16:58:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:35,786 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:35,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:35,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-07-09 16:58:35,786 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:35,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:35,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1628091148, now seen corresponding path program 151 times [2021-07-09 16:58:35,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:35,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532125698] [2021-07-09 16:58:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:36,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:36,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532125698] [2021-07-09 16:58:36,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532125698] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:36,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:36,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:36,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097232444] [2021-07-09 16:58:36,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:36,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:36,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:36,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:36,123 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:36,798 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:36,963 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:37,160 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:37,353 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:37,606 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:37,769 INFO L93 Difference]: Finished difference Result 18811 states and 49150 transitions. [2021-07-09 16:58:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:37,794 INFO L225 Difference]: With dead ends: 18811 [2021-07-09 16:58:37,794 INFO L226 Difference]: Without dead ends: 18811 [2021-07-09 16:58:37,795 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1489.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:37,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18811 states. [2021-07-09 16:58:37,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18811 to 8943. [2021-07-09 16:58:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 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 16:58:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-07-09 16:58:37,969 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-07-09 16:58:37,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:37,969 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-07-09 16:58:37,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-07-09 16:58:37,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:37,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:37,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:37,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-07-09 16:58:37,979 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:37,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1379544168, now seen corresponding path program 152 times [2021-07-09 16:58:37,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:37,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064653657] [2021-07-09 16:58:37,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:38,305 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 16:58:38,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:38,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064653657] [2021-07-09 16:58:38,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064653657] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:38,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:38,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:38,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544893889] [2021-07-09 16:58:38,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:38,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:38,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:38,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:38,306 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:38,944 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:39,086 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:39,260 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:39,439 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:39,642 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:39,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:39,799 INFO L93 Difference]: Finished difference Result 18651 states and 48748 transitions. [2021-07-09 16:58:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:39,799 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:39,825 INFO L225 Difference]: With dead ends: 18651 [2021-07-09 16:58:39,825 INFO L226 Difference]: Without dead ends: 18651 [2021-07-09 16:58:39,826 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1374.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:39,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18651 states. [2021-07-09 16:58:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18651 to 8927. [2021-07-09 16:58:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 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 16:58:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-09 16:58:39,991 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-09 16:58:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:39,991 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-09 16:58:39,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:39,991 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-09 16:58:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:40,000 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:40,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:40,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-07-09 16:58:40,000 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:40,000 INFO L82 PathProgramCache]: Analyzing trace with hash 222726864, now seen corresponding path program 153 times [2021-07-09 16:58:40,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:40,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338182147] [2021-07-09 16:58:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:40,282 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 16:58:40,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:40,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338182147] [2021-07-09 16:58:40,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338182147] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:40,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:40,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:40,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999947293] [2021-07-09 16:58:40,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:40,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:40,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:40,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:40,283 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:40,988 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:41,130 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:58:41,334 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:41,562 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:41,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:41,707 INFO L93 Difference]: Finished difference Result 15802 states and 41488 transitions. [2021-07-09 16:58:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:41,728 INFO L225 Difference]: With dead ends: 15802 [2021-07-09 16:58:41,729 INFO L226 Difference]: Without dead ends: 15802 [2021-07-09 16:58:41,729 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1265.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15802 states. [2021-07-09 16:58:41,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15802 to 8799. [2021-07-09 16:58:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8799 states, 8797 states have (on average 2.6865977037626463) internal successors, (23634), 8798 states have internal predecessors, (23634), 0 states have call successors, (0), 0 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 16:58:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8799 states to 8799 states and 23634 transitions. [2021-07-09 16:58:41,956 INFO L78 Accepts]: Start accepts. Automaton has 8799 states and 23634 transitions. Word has length 114 [2021-07-09 16:58:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:41,956 INFO L482 AbstractCegarLoop]: Abstraction has 8799 states and 23634 transitions. [2021-07-09 16:58:41,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8799 states and 23634 transitions. [2021-07-09 16:58:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:41,965 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:41,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:41,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-07-09 16:58:41,965 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:41,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:41,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1213368690, now seen corresponding path program 154 times [2021-07-09 16:58:41,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:41,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361838380] [2021-07-09 16:58:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:42,268 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 16:58:42,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:42,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361838380] [2021-07-09 16:58:42,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361838380] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:42,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:42,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:42,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822025883] [2021-07-09 16:58:42,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:42,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:42,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:42,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:42,269 INFO L87 Difference]: Start difference. First operand 8799 states and 23634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:43,026 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:43,164 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:43,320 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:43,539 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:43,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:43,681 INFO L93 Difference]: Finished difference Result 13786 states and 36347 transitions. [2021-07-09 16:58:43,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:43,681 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:43,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:43,700 INFO L225 Difference]: With dead ends: 13786 [2021-07-09 16:58:43,700 INFO L226 Difference]: Without dead ends: 13786 [2021-07-09 16:58:43,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1308.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:43,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13786 states. [2021-07-09 16:58:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13786 to 8877. [2021-07-09 16:58:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:58:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:58:43,865 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:58:43,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:43,866 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:58:43,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:58:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:43,878 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:43,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:43,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-07-09 16:58:43,879 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:43,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:43,879 INFO L82 PathProgramCache]: Analyzing trace with hash 996219660, now seen corresponding path program 155 times [2021-07-09 16:58:43,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:43,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166742070] [2021-07-09 16:58:43,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:44,190 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 16:58:44,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:44,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166742070] [2021-07-09 16:58:44,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166742070] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:44,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:44,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:44,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824105301] [2021-07-09 16:58:44,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:44,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:44,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:44,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:44,191 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:44,834 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:44,995 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:45,157 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:45,351 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:45,547 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:45,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:45,696 INFO L93 Difference]: Finished difference Result 14599 states and 38151 transitions. [2021-07-09 16:58:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:45,697 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:45,716 INFO L225 Difference]: With dead ends: 14599 [2021-07-09 16:58:45,716 INFO L226 Difference]: Without dead ends: 14599 [2021-07-09 16:58:45,716 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1366.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:45,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-07-09 16:58:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 8861. [2021-07-09 16:58:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 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 16:58:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-09 16:58:45,870 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-09 16:58:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:45,870 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-09 16:58:45,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-09 16:58:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:45,879 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:45,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:45,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-07-09 16:58:45,880 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:45,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:45,880 INFO L82 PathProgramCache]: Analyzing trace with hash 721994862, now seen corresponding path program 156 times [2021-07-09 16:58:45,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:45,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324897481] [2021-07-09 16:58:45,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:46,279 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 16:58:46,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:46,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324897481] [2021-07-09 16:58:46,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324897481] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:46,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:46,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:46,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933510005] [2021-07-09 16:58:46,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:46,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:46,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:46,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:46,280 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:46,902 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:47,055 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:47,214 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:47,400 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:47,596 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:47,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:47,741 INFO L93 Difference]: Finished difference Result 17712 states and 46101 transitions. [2021-07-09 16:58:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:47,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:47,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:47,766 INFO L225 Difference]: With dead ends: 17712 [2021-07-09 16:58:47,766 INFO L226 Difference]: Without dead ends: 17712 [2021-07-09 16:58:47,766 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1450.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:47,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17712 states. [2021-07-09 16:58:47,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17712 to 8877. [2021-07-09 16:58:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:58:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:58:47,935 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:58:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:47,936 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:58:47,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:58:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:47,945 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:47,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:47,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-07-09 16:58:47,945 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:47,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:47,945 INFO L82 PathProgramCache]: Analyzing trace with hash 473447882, now seen corresponding path program 157 times [2021-07-09 16:58:47,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:47,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123527230] [2021-07-09 16:58:47,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:48,255 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 16:58:48,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:48,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123527230] [2021-07-09 16:58:48,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123527230] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:48,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:48,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:48,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653118278] [2021-07-09 16:58:48,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:48,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:48,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:48,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:48,256 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:48,899 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:49,051 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:58:49,215 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:49,399 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:49,601 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:49,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:49,726 INFO L93 Difference]: Finished difference Result 14777 states and 38627 transitions. [2021-07-09 16:58:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:49,726 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:49,747 INFO L225 Difference]: With dead ends: 14777 [2021-07-09 16:58:49,747 INFO L226 Difference]: Without dead ends: 14777 [2021-07-09 16:58:49,748 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1380.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14777 states. [2021-07-09 16:58:49,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14777 to 8845. [2021-07-09 16:58:49,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 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 16:58:49,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-07-09 16:58:49,895 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-07-09 16:58:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:49,895 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-07-09 16:58:49,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:49,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-07-09 16:58:49,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:49,904 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:49,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:49,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-07-09 16:58:49,904 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:49,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:49,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1951910668, now seen corresponding path program 158 times [2021-07-09 16:58:49,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:49,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961828523] [2021-07-09 16:58:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:50,229 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 16:58:50,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:50,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961828523] [2021-07-09 16:58:50,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961828523] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:50,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:50,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:50,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006972793] [2021-07-09 16:58:50,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:50,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:50,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:50,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:50,230 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:50,957 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:51,110 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:51,291 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:51,482 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:51,685 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:51,863 INFO L93 Difference]: Finished difference Result 18222 states and 47493 transitions. [2021-07-09 16:58:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:51,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:51,888 INFO L225 Difference]: With dead ends: 18222 [2021-07-09 16:58:51,888 INFO L226 Difference]: Without dead ends: 18222 [2021-07-09 16:58:51,888 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1462.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2021-07-09 16:58:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 8893. [2021-07-09 16:58:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 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 16:58:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-07-09 16:58:52,071 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-07-09 16:58:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:52,071 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-07-09 16:58:52,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-07-09 16:58:52,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:52,081 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:52,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:52,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-07-09 16:58:52,081 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:52,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:52,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1703363688, now seen corresponding path program 159 times [2021-07-09 16:58:52,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:52,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882217115] [2021-07-09 16:58:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:52,399 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 16:58:52,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:52,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882217115] [2021-07-09 16:58:52,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882217115] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:52,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:52,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:52,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946696068] [2021-07-09 16:58:52,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:52,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:52,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:52,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:52,400 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:53,084 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:53,257 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:53,411 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:53,598 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:53,760 INFO L93 Difference]: Finished difference Result 18062 states and 47091 transitions. [2021-07-09 16:58:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:53,761 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:53,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:53,788 INFO L225 Difference]: With dead ends: 18062 [2021-07-09 16:58:53,789 INFO L226 Difference]: Without dead ends: 18062 [2021-07-09 16:58:53,789 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1251.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18062 states. [2021-07-09 16:58:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18062 to 8877. [2021-07-09 16:58:53,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 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 16:58:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-09 16:58:53,991 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-09 16:58:53,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:53,992 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-09 16:58:53,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:53,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-09 16:58:54,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:54,002 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:54,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:54,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-07-09 16:58:54,003 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:54,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:54,003 INFO L82 PathProgramCache]: Analyzing trace with hash 546546384, now seen corresponding path program 160 times [2021-07-09 16:58:54,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:54,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575297636] [2021-07-09 16:58:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:54,349 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 16:58:54,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:54,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575297636] [2021-07-09 16:58:54,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575297636] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:54,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:54,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:54,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119657464] [2021-07-09 16:58:54,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:54,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:54,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:54,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:54,350 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:54,981 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:58:55,165 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:55,295 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:58:55,462 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:55,637 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:55,772 INFO L93 Difference]: Finished difference Result 15213 states and 39831 transitions. [2021-07-09 16:58:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:55,773 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:55,798 INFO L225 Difference]: With dead ends: 15213 [2021-07-09 16:58:55,798 INFO L226 Difference]: Without dead ends: 15213 [2021-07-09 16:58:55,799 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:55,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15213 states. [2021-07-09 16:58:55,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15213 to 8813. [2021-07-09 16:58:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 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 16:58:55,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-07-09 16:58:55,979 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-07-09 16:58:55,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:55,979 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-07-09 16:58:55,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:55,979 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-07-09 16:58:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:55,989 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:55,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:55,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-07-09 16:58:55,990 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:55,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1444907788, now seen corresponding path program 161 times [2021-07-09 16:58:55,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:55,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688589258] [2021-07-09 16:58:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:56,313 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 16:58:56,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:56,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688589258] [2021-07-09 16:58:56,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688589258] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:56,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:56,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:56,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896819142] [2021-07-09 16:58:56,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:56,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:56,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:56,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:56,314 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:57,151 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:57,352 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:58:57,572 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:58:57,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:57,707 INFO L93 Difference]: Finished difference Result 13877 states and 36426 transitions. [2021-07-09 16:58:57,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:57,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:57,725 INFO L225 Difference]: With dead ends: 13877 [2021-07-09 16:58:57,726 INFO L226 Difference]: Without dead ends: 13877 [2021-07-09 16:58:57,726 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1307.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:57,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13877 states. [2021-07-09 16:58:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13877 to 8875. [2021-07-09 16:58:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8875 states, 8873 states have (on average 2.688380480108193) internal successors, (23854), 8874 states have internal predecessors, (23854), 0 states have call successors, (0), 0 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 16:58:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8875 states to 8875 states and 23854 transitions. [2021-07-09 16:58:57,876 INFO L78 Accepts]: Start accepts. Automaton has 8875 states and 23854 transitions. Word has length 114 [2021-07-09 16:58:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:57,876 INFO L482 AbstractCegarLoop]: Abstraction has 8875 states and 23854 transitions. [2021-07-09 16:58:57,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 8875 states and 23854 transitions. [2021-07-09 16:58:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:57,885 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:57,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:57,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-07-09 16:58:57,885 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:57,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1196360808, now seen corresponding path program 162 times [2021-07-09 16:58:57,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:57,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947596927] [2021-07-09 16:58:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:58,211 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 16:58:58,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:58,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947596927] [2021-07-09 16:58:58,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947596927] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:58,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:58,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:58:58,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249684555] [2021-07-09 16:58:58,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:58:58,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:58,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:58:58,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:58:58,213 INFO L87 Difference]: Start difference. First operand 8875 states and 23854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:58,843 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:58:58,984 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:58:59,161 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:58:59,341 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:58:59,544 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:58:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:59,728 INFO L93 Difference]: Finished difference Result 13717 states and 36024 transitions. [2021-07-09 16:58:59,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:59,728 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:58:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:59,748 INFO L225 Difference]: With dead ends: 13717 [2021-07-09 16:58:59,748 INFO L226 Difference]: Without dead ends: 13717 [2021-07-09 16:58:59,748 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1380.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13717 states. [2021-07-09 16:58:59,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13717 to 8859. [2021-07-09 16:58:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8859 states, 8857 states have (on average 2.6880433555379923) internal successors, (23808), 8858 states have internal predecessors, (23808), 0 states have call successors, (0), 0 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 16:58:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8859 states to 8859 states and 23808 transitions. [2021-07-09 16:58:59,887 INFO L78 Accepts]: Start accepts. Automaton has 8859 states and 23808 transitions. Word has length 114 [2021-07-09 16:58:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:59,887 INFO L482 AbstractCegarLoop]: Abstraction has 8859 states and 23808 transitions. [2021-07-09 16:58:59,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:58:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8859 states and 23808 transitions. [2021-07-09 16:58:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:58:59,896 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:59,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:59,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-07-09 16:58:59,896 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:59,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:59,896 INFO L82 PathProgramCache]: Analyzing trace with hash 39543504, now seen corresponding path program 163 times [2021-07-09 16:58:59,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:59,896 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676213806] [2021-07-09 16:58:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:00,240 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 16:59:00,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:00,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676213806] [2021-07-09 16:59:00,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676213806] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:00,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:00,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:00,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336030389] [2021-07-09 16:59:00,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:00,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:00,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:00,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:00,241 INFO L87 Difference]: Start difference. First operand 8859 states and 23808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:00,887 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:59:01,031 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:01,184 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:59:01,381 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:01,588 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:01,727 INFO L93 Difference]: Finished difference Result 14005 states and 36852 transitions. [2021-07-09 16:59:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:01,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:01,746 INFO L225 Difference]: With dead ends: 14005 [2021-07-09 16:59:01,746 INFO L226 Difference]: Without dead ends: 14005 [2021-07-09 16:59:01,746 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1378.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:01,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14005 states. [2021-07-09 16:59:01,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14005 to 8827. [2021-07-09 16:59:01,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8827 states, 8825 states have (on average 2.6873654390934845) internal successors, (23716), 8826 states have internal predecessors, (23716), 0 states have call successors, (0), 0 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 16:59:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8827 states to 8827 states and 23716 transitions. [2021-07-09 16:59:01,886 INFO L78 Accepts]: Start accepts. Automaton has 8827 states and 23716 transitions. Word has length 114 [2021-07-09 16:59:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:01,886 INFO L482 AbstractCegarLoop]: Abstraction has 8827 states and 23716 transitions. [2021-07-09 16:59:01,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:01,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8827 states and 23716 transitions. [2021-07-09 16:59:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:01,895 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:01,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:01,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-07-09 16:59:01,895 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:01,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:01,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1747726642, now seen corresponding path program 164 times [2021-07-09 16:59:01,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:01,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734846523] [2021-07-09 16:59:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:02,236 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 16:59:02,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:02,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734846523] [2021-07-09 16:59:02,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734846523] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:02,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:02,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:02,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371459532] [2021-07-09 16:59:02,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:02,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:02,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:02,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:02,237 INFO L87 Difference]: Start difference. First operand 8827 states and 23716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:02,886 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:59:03,023 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 16:59:03,305 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:03,483 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:03,605 INFO L93 Difference]: Finished difference Result 10720 states and 28388 transitions. [2021-07-09 16:59:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:03,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:03,621 INFO L225 Difference]: With dead ends: 10720 [2021-07-09 16:59:03,622 INFO L226 Difference]: Without dead ends: 10720 [2021-07-09 16:59:03,622 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1286.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:03,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2021-07-09 16:59:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 8911. [2021-07-09 16:59:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6896396902009205) internal successors, (23962), 8910 states have internal predecessors, (23962), 0 states have call successors, (0), 0 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 16:59:03,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23962 transitions. [2021-07-09 16:59:03,778 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23962 transitions. Word has length 114 [2021-07-09 16:59:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:03,778 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23962 transitions. [2021-07-09 16:59:03,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23962 transitions. [2021-07-09 16:59:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:03,789 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:03,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:03,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-07-09 16:59:03,790 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:03,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:03,790 INFO L82 PathProgramCache]: Analyzing trace with hash 58718336, now seen corresponding path program 4 times [2021-07-09 16:59:03,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:03,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069704877] [2021-07-09 16:59:03,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:04,419 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 16:59:04,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:04,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069704877] [2021-07-09 16:59:04,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069704877] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:04,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:04,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:59:04,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343419258] [2021-07-09 16:59:04,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:59:04,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:04,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:59:04,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:59:04,420 INFO L87 Difference]: Start difference. First operand 8911 states and 23962 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:09,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:09,097 INFO L93 Difference]: Finished difference Result 12955 states and 34297 transitions. [2021-07-09 16:59:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-09 16:59:09,098 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:09,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:09,118 INFO L225 Difference]: With dead ends: 12955 [2021-07-09 16:59:09,118 INFO L226 Difference]: Without dead ends: 12842 [2021-07-09 16:59:09,119 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 3170.2ms TimeCoverageRelationStatistics Valid=1424, Invalid=4896, Unknown=0, NotChecked=0, Total=6320 [2021-07-09 16:59:09,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12842 states. [2021-07-09 16:59:09,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12842 to 10256. [2021-07-09 16:59:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10256 states, 10254 states have (on average 2.68860932319095) internal successors, (27569), 10255 states have internal predecessors, (27569), 0 states have call successors, (0), 0 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 16:59:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10256 states to 10256 states and 27569 transitions. [2021-07-09 16:59:09,292 INFO L78 Accepts]: Start accepts. Automaton has 10256 states and 27569 transitions. Word has length 114 [2021-07-09 16:59:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:09,292 INFO L482 AbstractCegarLoop]: Abstraction has 10256 states and 27569 transitions. [2021-07-09 16:59:09,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:09,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10256 states and 27569 transitions. [2021-07-09 16:59:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:09,304 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:09,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:09,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-07-09 16:59:09,305 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:09,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:09,305 INFO L82 PathProgramCache]: Analyzing trace with hash 448649464, now seen corresponding path program 165 times [2021-07-09 16:59:09,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:09,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612602023] [2021-07-09 16:59:09,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:09,791 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 16:59:09,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:09,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612602023] [2021-07-09 16:59:09,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612602023] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:09,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:09,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:59:09,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168349692] [2021-07-09 16:59:09,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:59:09,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:09,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:59:09,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:59:09,792 INFO L87 Difference]: Start difference. First operand 10256 states and 27569 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:10,832 INFO L93 Difference]: Finished difference Result 11823 states and 30921 transitions. [2021-07-09 16:59:10,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:59:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:10,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:10,850 INFO L225 Difference]: With dead ends: 11823 [2021-07-09 16:59:10,850 INFO L226 Difference]: Without dead ends: 11823 [2021-07-09 16:59:10,850 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1064.2ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:59:10,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2021-07-09 16:59:10,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 10021. [2021-07-09 16:59:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.697874039325282) internal successors, (27030), 10020 states have internal predecessors, (27030), 0 states have call successors, (0), 0 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 16:59:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 27030 transitions. [2021-07-09 16:59:11,026 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 27030 transitions. Word has length 114 [2021-07-09 16:59:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:11,026 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 27030 transitions. [2021-07-09 16:59:11,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 27030 transitions. [2021-07-09 16:59:11,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:11,038 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:11,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:11,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-07-09 16:59:11,039 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:11,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1053788490, now seen corresponding path program 166 times [2021-07-09 16:59:11,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:11,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56973450] [2021-07-09 16:59:11,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:11,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:11,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56973450] [2021-07-09 16:59:11,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56973450] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:11,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:11,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:11,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626024122] [2021-07-09 16:59:11,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:11,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:11,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:11,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:11,355 INFO L87 Difference]: Start difference. First operand 10021 states and 27030 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:12,207 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:12,361 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:12,576 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:12,754 INFO L93 Difference]: Finished difference Result 21627 states and 57583 transitions. [2021-07-09 16:59:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:12,754 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:12,784 INFO L225 Difference]: With dead ends: 21627 [2021-07-09 16:59:12,784 INFO L226 Difference]: Without dead ends: 21627 [2021-07-09 16:59:12,784 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1248.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21627 states. [2021-07-09 16:59:12,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21627 to 10197. [2021-07-09 16:59:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.700931829328102) internal successors, (27536), 10196 states have internal predecessors, (27536), 0 states have call successors, (0), 0 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 16:59:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27536 transitions. [2021-07-09 16:59:12,994 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27536 transitions. Word has length 114 [2021-07-09 16:59:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:12,994 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27536 transitions. [2021-07-09 16:59:12,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27536 transitions. [2021-07-09 16:59:13,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:13,004 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:13,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:13,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-07-09 16:59:13,005 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:13,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:13,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1031590456, now seen corresponding path program 167 times [2021-07-09 16:59:13,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:13,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289637251] [2021-07-09 16:59:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:13,338 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 16:59:13,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:13,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289637251] [2021-07-09 16:59:13,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289637251] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:13,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:13,339 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:13,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660674955] [2021-07-09 16:59:13,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:13,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:13,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:13,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:13,339 INFO L87 Difference]: Start difference. First operand 10197 states and 27536 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:14,005 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:14,205 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:14,377 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:14,568 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:14,766 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:14,924 INFO L93 Difference]: Finished difference Result 21205 states and 56069 transitions. [2021-07-09 16:59:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:14,924 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:14,954 INFO L225 Difference]: With dead ends: 21205 [2021-07-09 16:59:14,954 INFO L226 Difference]: Without dead ends: 21205 [2021-07-09 16:59:14,955 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1455.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21205 states. [2021-07-09 16:59:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21205 to 10197. [2021-07-09 16:59:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.6991662579695928) internal successors, (27518), 10196 states have internal predecessors, (27518), 0 states have call successors, (0), 0 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 16:59:15,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27518 transitions. [2021-07-09 16:59:15,163 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27518 transitions. Word has length 114 [2021-07-09 16:59:15,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:15,163 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27518 transitions. [2021-07-09 16:59:15,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:15,164 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27518 transitions. [2021-07-09 16:59:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:15,174 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:15,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:15,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-07-09 16:59:15,174 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:15,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1624263466, now seen corresponding path program 168 times [2021-07-09 16:59:15,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:15,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056833829] [2021-07-09 16:59:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:15,510 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 16:59:15,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:15,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056833829] [2021-07-09 16:59:15,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056833829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:15,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:15,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:15,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715945531] [2021-07-09 16:59:15,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:15,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:15,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:15,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:15,511 INFO L87 Difference]: Start difference. First operand 10197 states and 27518 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:16,164 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:16,314 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:16,468 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:59:16,664 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:16,872 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:17,034 INFO L93 Difference]: Finished difference Result 18683 states and 49562 transitions. [2021-07-09 16:59:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:17,034 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:17,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:17,060 INFO L225 Difference]: With dead ends: 18683 [2021-07-09 16:59:17,060 INFO L226 Difference]: Without dead ends: 18683 [2021-07-09 16:59:17,060 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1360.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18683 states. [2021-07-09 16:59:17,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18683 to 10169. [2021-07-09 16:59:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10169 states, 10167 states have (on average 2.6985344742795316) internal successors, (27436), 10168 states have internal predecessors, (27436), 0 states have call successors, (0), 0 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 16:59:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 27436 transitions. [2021-07-09 16:59:17,248 INFO L78 Accepts]: Start accepts. Automaton has 10169 states and 27436 transitions. Word has length 114 [2021-07-09 16:59:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:17,248 INFO L482 AbstractCegarLoop]: Abstraction has 10169 states and 27436 transitions. [2021-07-09 16:59:17,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:17,248 INFO L276 IsEmpty]: Start isEmpty. Operand 10169 states and 27436 transitions. [2021-07-09 16:59:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:17,259 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:17,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:17,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-07-09 16:59:17,259 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:17,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1922664140, now seen corresponding path program 169 times [2021-07-09 16:59:17,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:17,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313891752] [2021-07-09 16:59:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:17,575 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 16:59:17,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:17,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313891752] [2021-07-09 16:59:17,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313891752] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:17,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:17,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:17,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871317327] [2021-07-09 16:59:17,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:17,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:17,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:17,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:17,576 INFO L87 Difference]: Start difference. First operand 10169 states and 27436 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:18,210 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:18,366 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:18,578 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:18,758 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:18,957 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:19,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:19,118 INFO L93 Difference]: Finished difference Result 22245 states and 58610 transitions. [2021-07-09 16:59:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:19,119 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:19,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:19,150 INFO L225 Difference]: With dead ends: 22245 [2021-07-09 16:59:19,150 INFO L226 Difference]: Without dead ends: 22245 [2021-07-09 16:59:19,150 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1417.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22245 states. [2021-07-09 16:59:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22245 to 10201. [2021-07-09 16:59:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10199 states have (on average 2.6990881458966567) internal successors, (27528), 10200 states have internal predecessors, (27528), 0 states have call successors, (0), 0 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 16:59:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 27528 transitions. [2021-07-09 16:59:19,378 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 27528 transitions. Word has length 114 [2021-07-09 16:59:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:19,378 INFO L482 AbstractCegarLoop]: Abstraction has 10201 states and 27528 transitions. [2021-07-09 16:59:19,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:19,378 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 27528 transitions. [2021-07-09 16:59:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:19,390 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:19,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:19,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-07-09 16:59:19,391 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:19,391 INFO L82 PathProgramCache]: Analyzing trace with hash -162714806, now seen corresponding path program 170 times [2021-07-09 16:59:19,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:19,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801164781] [2021-07-09 16:59:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:19,800 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 16:59:19,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:19,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801164781] [2021-07-09 16:59:19,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801164781] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:19,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:19,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:19,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727451492] [2021-07-09 16:59:19,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:19,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:19,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:19,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:19,801 INFO L87 Difference]: Start difference. First operand 10201 states and 27528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:20,445 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:20,609 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:20,774 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:20,965 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:21,169 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:21,337 INFO L93 Difference]: Finished difference Result 23058 states and 60414 transitions. [2021-07-09 16:59:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:21,369 INFO L225 Difference]: With dead ends: 23058 [2021-07-09 16:59:21,369 INFO L226 Difference]: Without dead ends: 23058 [2021-07-09 16:59:21,369 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1412.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23058 states. [2021-07-09 16:59:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23058 to 10185. [2021-07-09 16:59:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10185 states, 10183 states have (on average 2.698811745065305) internal successors, (27482), 10184 states have internal predecessors, (27482), 0 states have call successors, (0), 0 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 16:59:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10185 states to 10185 states and 27482 transitions. [2021-07-09 16:59:21,582 INFO L78 Accepts]: Start accepts. Automaton has 10185 states and 27482 transitions. Word has length 114 [2021-07-09 16:59:21,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:21,582 INFO L482 AbstractCegarLoop]: Abstraction has 10185 states and 27482 transitions. [2021-07-09 16:59:21,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:21,582 INFO L276 IsEmpty]: Start isEmpty. Operand 10185 states and 27482 transitions. [2021-07-09 16:59:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:21,592 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:21,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:21,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-07-09 16:59:21,593 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:21,593 INFO L82 PathProgramCache]: Analyzing trace with hash -436939604, now seen corresponding path program 171 times [2021-07-09 16:59:21,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:21,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244745868] [2021-07-09 16:59:21,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:21,939 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 16:59:21,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:21,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244745868] [2021-07-09 16:59:21,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244745868] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:21,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:21,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:21,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465072994] [2021-07-09 16:59:21,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:21,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:21,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:21,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:21,940 INFO L87 Difference]: Start difference. First operand 10185 states and 27482 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:22,678 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:22,852 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:23,095 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:23,311 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:23,502 INFO L93 Difference]: Finished difference Result 22384 states and 58827 transitions. [2021-07-09 16:59:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:23,538 INFO L225 Difference]: With dead ends: 22384 [2021-07-09 16:59:23,538 INFO L226 Difference]: Without dead ends: 22384 [2021-07-09 16:59:23,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1394.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:23,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22384 states. [2021-07-09 16:59:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22384 to 10201. [2021-07-09 16:59:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10199 states have (on average 2.6990881458966567) internal successors, (27528), 10200 states have internal predecessors, (27528), 0 states have call successors, (0), 0 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 16:59:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 27528 transitions. [2021-07-09 16:59:23,794 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 27528 transitions. Word has length 114 [2021-07-09 16:59:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:23,794 INFO L482 AbstractCegarLoop]: Abstraction has 10201 states and 27528 transitions. [2021-07-09 16:59:23,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 27528 transitions. [2021-07-09 16:59:23,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:23,806 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:23,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:23,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-07-09 16:59:23,807 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:23,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:23,807 INFO L82 PathProgramCache]: Analyzing trace with hash -685486584, now seen corresponding path program 172 times [2021-07-09 16:59:23,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:23,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231784389] [2021-07-09 16:59:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:24,124 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 16:59:24,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:24,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231784389] [2021-07-09 16:59:24,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231784389] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:24,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:24,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:24,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804942120] [2021-07-09 16:59:24,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:24,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:24,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:24,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:24,125 INFO L87 Difference]: Start difference. First operand 10201 states and 27528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:24,764 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:24,916 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:25,081 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:25,234 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:25,434 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:25,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:25,576 INFO L93 Difference]: Finished difference Result 19449 states and 51353 transitions. [2021-07-09 16:59:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:25,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:25,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:25,603 INFO L225 Difference]: With dead ends: 19449 [2021-07-09 16:59:25,603 INFO L226 Difference]: Without dead ends: 19449 [2021-07-09 16:59:25,603 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19449 states. [2021-07-09 16:59:25,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19449 to 10157. [2021-07-09 16:59:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.697587395371738) internal successors, (27394), 10156 states have internal predecessors, (27394), 0 states have call successors, (0), 0 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 16:59:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27394 transitions. [2021-07-09 16:59:25,797 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27394 transitions. Word has length 114 [2021-07-09 16:59:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:25,797 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27394 transitions. [2021-07-09 16:59:25,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27394 transitions. [2021-07-09 16:59:25,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:25,808 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:25,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:25,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-07-09 16:59:25,808 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:25,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:25,808 INFO L82 PathProgramCache]: Analyzing trace with hash 194861866, now seen corresponding path program 173 times [2021-07-09 16:59:25,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:25,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502875176] [2021-07-09 16:59:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:26,125 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 16:59:26,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:26,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502875176] [2021-07-09 16:59:26,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502875176] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:26,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:26,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:26,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875958986] [2021-07-09 16:59:26,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:26,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:26,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:26,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:26,126 INFO L87 Difference]: Start difference. First operand 10157 states and 27394 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:26,929 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:27,088 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:27,265 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:27,533 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:27,685 INFO L93 Difference]: Finished difference Result 18621 states and 49416 transitions. [2021-07-09 16:59:27,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:27,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:27,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:27,711 INFO L225 Difference]: With dead ends: 18621 [2021-07-09 16:59:27,712 INFO L226 Difference]: Without dead ends: 18621 [2021-07-09 16:59:27,712 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1441.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:27,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18621 states. [2021-07-09 16:59:27,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18621 to 10221. [2021-07-09 16:59:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10219 states have (on average 2.6986985027889228) internal successors, (27578), 10220 states have internal predecessors, (27578), 0 states have call successors, (0), 0 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 16:59:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 27578 transitions. [2021-07-09 16:59:27,898 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 27578 transitions. Word has length 114 [2021-07-09 16:59:27,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:27,898 INFO L482 AbstractCegarLoop]: Abstraction has 10221 states and 27578 transitions. [2021-07-09 16:59:27,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 27578 transitions. [2021-07-09 16:59:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:27,908 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:27,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:27,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-07-09 16:59:27,909 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:27,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:27,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1890517080, now seen corresponding path program 174 times [2021-07-09 16:59:27,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:27,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894173136] [2021-07-09 16:59:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:28,237 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 16:59:28,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:28,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894173136] [2021-07-09 16:59:28,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894173136] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:28,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:28,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:28,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206899974] [2021-07-09 16:59:28,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:28,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:28,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:28,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:28,238 INFO L87 Difference]: Start difference. First operand 10221 states and 27578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:29,096 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:29,261 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:29,428 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:29,583 INFO L93 Difference]: Finished difference Result 19434 states and 51220 transitions. [2021-07-09 16:59:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:29,616 INFO L225 Difference]: With dead ends: 19434 [2021-07-09 16:59:29,616 INFO L226 Difference]: Without dead ends: 19434 [2021-07-09 16:59:29,616 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1238.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19434 states. [2021-07-09 16:59:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19434 to 10205. [2021-07-09 16:59:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10205 states, 10203 states have (on average 2.6984220327354698) internal successors, (27532), 10204 states have internal predecessors, (27532), 0 states have call successors, (0), 0 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 16:59:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 27532 transitions. [2021-07-09 16:59:29,841 INFO L78 Accepts]: Start accepts. Automaton has 10205 states and 27532 transitions. Word has length 114 [2021-07-09 16:59:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:29,841 INFO L482 AbstractCegarLoop]: Abstraction has 10205 states and 27532 transitions. [2021-07-09 16:59:29,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10205 states and 27532 transitions. [2021-07-09 16:59:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:29,852 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:29,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:29,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-07-09 16:59:29,853 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash 2130225418, now seen corresponding path program 175 times [2021-07-09 16:59:29,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:29,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106936025] [2021-07-09 16:59:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:30,139 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 16:59:30,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:30,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106936025] [2021-07-09 16:59:30,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106936025] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:30,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:30,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:30,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090753702] [2021-07-09 16:59:30,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:30,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:30,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:30,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:30,140 INFO L87 Difference]: Start difference. First operand 10205 states and 27532 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:30,869 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:31,043 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:31,248 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:31,462 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:31,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:31,716 INFO L93 Difference]: Finished difference Result 22547 states and 59170 transitions. [2021-07-09 16:59:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:31,716 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:31,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:31,742 INFO L225 Difference]: With dead ends: 22547 [2021-07-09 16:59:31,742 INFO L226 Difference]: Without dead ends: 22547 [2021-07-09 16:59:31,742 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22547 states. [2021-07-09 16:59:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22547 to 10221. [2021-07-09 16:59:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10219 states have (on average 2.6986985027889228) internal successors, (27578), 10220 states have internal predecessors, (27578), 0 states have call successors, (0), 0 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 16:59:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 27578 transitions. [2021-07-09 16:59:31,928 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 27578 transitions. Word has length 114 [2021-07-09 16:59:31,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:31,928 INFO L482 AbstractCegarLoop]: Abstraction has 10221 states and 27578 transitions. [2021-07-09 16:59:31,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:31,928 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 27578 transitions. [2021-07-09 16:59:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:31,938 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:31,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:31,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-07-09 16:59:31,938 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:31,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:31,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1881678438, now seen corresponding path program 176 times [2021-07-09 16:59:31,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:31,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900405978] [2021-07-09 16:59:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:32,253 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 16:59:32,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:32,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900405978] [2021-07-09 16:59:32,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900405978] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:32,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:32,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:32,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8180471] [2021-07-09 16:59:32,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:32,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:32,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:32,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:32,254 INFO L87 Difference]: Start difference. First operand 10221 states and 27578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:32,907 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:33,067 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:33,231 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:33,410 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:33,613 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:33,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:33,759 INFO L93 Difference]: Finished difference Result 19612 states and 51696 transitions. [2021-07-09 16:59:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:33,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:33,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:33,786 INFO L225 Difference]: With dead ends: 19612 [2021-07-09 16:59:33,786 INFO L226 Difference]: Without dead ends: 19612 [2021-07-09 16:59:33,787 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1364.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19612 states. [2021-07-09 16:59:33,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19612 to 10189. [2021-07-09 16:59:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6981446942181213) internal successors, (27486), 10188 states have internal predecessors, (27486), 0 states have call successors, (0), 0 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 16:59:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27486 transitions. [2021-07-09 16:59:33,977 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27486 transitions. Word has length 114 [2021-07-09 16:59:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:33,978 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27486 transitions. [2021-07-09 16:59:33,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27486 transitions. [2021-07-09 16:59:33,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:33,988 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:33,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:33,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-07-09 16:59:33,988 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:33,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:33,988 INFO L82 PathProgramCache]: Analyzing trace with hash -934826072, now seen corresponding path program 177 times [2021-07-09 16:59:33,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:33,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099993923] [2021-07-09 16:59:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:34,313 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 16:59:34,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:34,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099993923] [2021-07-09 16:59:34,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099993923] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:34,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:34,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:34,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423249211] [2021-07-09 16:59:34,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:34,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:34,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:34,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:34,314 INFO L87 Difference]: Start difference. First operand 10189 states and 27486 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:34,970 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:35,119 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:35,305 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:35,515 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:35,731 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:35,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:35,898 INFO L93 Difference]: Finished difference Result 18744 states and 49587 transitions. [2021-07-09 16:59:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:35,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:35,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:35,926 INFO L225 Difference]: With dead ends: 18744 [2021-07-09 16:59:35,926 INFO L226 Difference]: Without dead ends: 18744 [2021-07-09 16:59:35,926 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1396.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18744 states. [2021-07-09 16:59:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18744 to 10237. [2021-07-09 16:59:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10237 states, 10235 states have (on average 2.698974108451392) internal successors, (27624), 10236 states have internal predecessors, (27624), 0 states have call successors, (0), 0 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 16:59:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10237 states to 10237 states and 27624 transitions. [2021-07-09 16:59:36,198 INFO L78 Accepts]: Start accepts. Automaton has 10237 states and 27624 transitions. Word has length 114 [2021-07-09 16:59:36,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:36,198 INFO L482 AbstractCegarLoop]: Abstraction has 10237 states and 27624 transitions. [2021-07-09 16:59:36,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 10237 states and 27624 transitions. [2021-07-09 16:59:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:36,208 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:36,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:36,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-07-09 16:59:36,209 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:36,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1183373052, now seen corresponding path program 178 times [2021-07-09 16:59:36,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:36,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941622811] [2021-07-09 16:59:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:36,538 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 16:59:36,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:36,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941622811] [2021-07-09 16:59:36,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941622811] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:36,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:36,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:36,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008495413] [2021-07-09 16:59:36,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:36,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:36,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:36,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:36,539 INFO L87 Difference]: Start difference. First operand 10237 states and 27624 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:37,225 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:37,373 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:37,548 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:37,728 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:37,936 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:38,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:38,082 INFO L93 Difference]: Finished difference Result 18584 states and 49185 transitions. [2021-07-09 16:59:38,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:38,083 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:38,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:38,110 INFO L225 Difference]: With dead ends: 18584 [2021-07-09 16:59:38,110 INFO L226 Difference]: Without dead ends: 18584 [2021-07-09 16:59:38,111 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1424.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18584 states. [2021-07-09 16:59:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18584 to 10221. [2021-07-09 16:59:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10219 states have (on average 2.6986985027889228) internal successors, (27578), 10220 states have internal predecessors, (27578), 0 states have call successors, (0), 0 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 16:59:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 27578 transitions. [2021-07-09 16:59:38,301 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 27578 transitions. Word has length 114 [2021-07-09 16:59:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:38,301 INFO L482 AbstractCegarLoop]: Abstraction has 10221 states and 27578 transitions. [2021-07-09 16:59:38,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 27578 transitions. [2021-07-09 16:59:38,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:38,312 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:38,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:38,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-07-09 16:59:38,312 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:38,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:38,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1954776940, now seen corresponding path program 179 times [2021-07-09 16:59:38,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:38,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486761082] [2021-07-09 16:59:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:38,643 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 16:59:38,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:38,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486761082] [2021-07-09 16:59:38,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486761082] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:38,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:38,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:38,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661091439] [2021-07-09 16:59:38,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:38,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:38,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:38,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:38,644 INFO L87 Difference]: Start difference. First operand 10221 states and 27578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:39,304 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:39,452 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:39,604 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:59:39,809 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:40,013 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:40,172 INFO L93 Difference]: Finished difference Result 16017 states and 42639 transitions. [2021-07-09 16:59:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:40,195 INFO L225 Difference]: With dead ends: 16017 [2021-07-09 16:59:40,195 INFO L226 Difference]: Without dead ends: 16017 [2021-07-09 16:59:40,195 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:40,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16017 states. [2021-07-09 16:59:40,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16017 to 10133. [2021-07-09 16:59:40,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10133 states, 10131 states have (on average 2.6956865067614255) internal successors, (27310), 10132 states have internal predecessors, (27310), 0 states have call successors, (0), 0 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 16:59:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10133 states to 10133 states and 27310 transitions. [2021-07-09 16:59:40,486 INFO L78 Accepts]: Start accepts. Automaton has 10133 states and 27310 transitions. Word has length 114 [2021-07-09 16:59:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:40,486 INFO L482 AbstractCegarLoop]: Abstraction has 10133 states and 27310 transitions. [2021-07-09 16:59:40,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 10133 states and 27310 transitions. [2021-07-09 16:59:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:40,496 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:40,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:40,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-07-09 16:59:40,497 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:40,497 INFO L82 PathProgramCache]: Analyzing trace with hash 215767850, now seen corresponding path program 180 times [2021-07-09 16:59:40,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:40,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690328167] [2021-07-09 16:59:40,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:40,827 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 16:59:40,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:40,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690328167] [2021-07-09 16:59:40,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690328167] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:40,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:40,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:40,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756924055] [2021-07-09 16:59:40,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:40,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:40,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:40,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:40,829 INFO L87 Difference]: Start difference. First operand 10133 states and 27310 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:41,502 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:41,655 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:41,838 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:42,043 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:42,247 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:42,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:42,451 INFO L93 Difference]: Finished difference Result 26376 states and 69810 transitions. [2021-07-09 16:59:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:42,451 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:42,491 INFO L225 Difference]: With dead ends: 26376 [2021-07-09 16:59:42,491 INFO L226 Difference]: Without dead ends: 26376 [2021-07-09 16:59:42,492 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1404.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:42,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26376 states. [2021-07-09 16:59:42,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26376 to 10229. [2021-07-09 16:59:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10229 states, 10227 states have (on average 2.697369707636648) internal successors, (27586), 10228 states have internal predecessors, (27586), 0 states have call successors, (0), 0 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 16:59:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 27586 transitions. [2021-07-09 16:59:42,758 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 27586 transitions. Word has length 114 [2021-07-09 16:59:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:42,759 INFO L482 AbstractCegarLoop]: Abstraction has 10229 states and 27586 transitions. [2021-07-09 16:59:42,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:42,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 27586 transitions. [2021-07-09 16:59:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:42,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:42,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:42,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-07-09 16:59:42,770 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1869611096, now seen corresponding path program 181 times [2021-07-09 16:59:42,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:42,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342831050] [2021-07-09 16:59:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:43,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:43,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342831050] [2021-07-09 16:59:43,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342831050] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:43,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:43,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:43,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537746743] [2021-07-09 16:59:43,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:43,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:43,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:43,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:43,123 INFO L87 Difference]: Start difference. First operand 10229 states and 27586 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:43,769 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:43,917 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:44,093 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:44,282 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:44,479 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:44,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:44,669 INFO L93 Difference]: Finished difference Result 25954 states and 68296 transitions. [2021-07-09 16:59:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:44,670 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:44,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:44,710 INFO L225 Difference]: With dead ends: 25954 [2021-07-09 16:59:44,710 INFO L226 Difference]: Without dead ends: 25954 [2021-07-09 16:59:44,711 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1404.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:44,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25954 states. [2021-07-09 16:59:45,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25954 to 10213. [2021-07-09 16:59:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 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 16:59:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-09 16:59:45,052 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-09 16:59:45,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:45,052 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-09 16:59:45,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-09 16:59:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:45,062 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:45,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:45,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-07-09 16:59:45,063 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:45,063 INFO L82 PathProgramCache]: Analyzing trace with hash 786242826, now seen corresponding path program 182 times [2021-07-09 16:59:45,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:45,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002315598] [2021-07-09 16:59:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:45,481 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 16:59:45,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:45,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002315598] [2021-07-09 16:59:45,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002315598] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:45,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:45,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:45,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420760658] [2021-07-09 16:59:45,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:45,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:45,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:45,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:45,483 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:46,142 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:46,290 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:46,445 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 16:59:46,642 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:46,846 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:47,028 INFO L93 Difference]: Finished difference Result 23432 states and 61789 transitions. [2021-07-09 16:59:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:47,067 INFO L225 Difference]: With dead ends: 23432 [2021-07-09 16:59:47,067 INFO L226 Difference]: Without dead ends: 23432 [2021-07-09 16:59:47,068 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1389.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:47,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23432 states. [2021-07-09 16:59:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23432 to 10181. [2021-07-09 16:59:47,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10181 states, 10179 states have (on average 2.6965320758424207) internal successors, (27448), 10180 states have internal predecessors, (27448), 0 states have call successors, (0), 0 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 16:59:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10181 states to 10181 states and 27448 transitions. [2021-07-09 16:59:47,336 INFO L78 Accepts]: Start accepts. Automaton has 10181 states and 27448 transitions. Word has length 114 [2021-07-09 16:59:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:47,336 INFO L482 AbstractCegarLoop]: Abstraction has 10181 states and 27448 transitions. [2021-07-09 16:59:47,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 10181 states and 27448 transitions. [2021-07-09 16:59:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:47,348 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:47,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:47,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-07-09 16:59:47,349 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:47,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1084643500, now seen corresponding path program 183 times [2021-07-09 16:59:47,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:47,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975531649] [2021-07-09 16:59:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:47,661 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 16:59:47,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:47,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975531649] [2021-07-09 16:59:47,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975531649] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:47,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:47,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:47,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234004221] [2021-07-09 16:59:47,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:47,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:47,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:47,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:47,663 INFO L87 Difference]: Start difference. First operand 10181 states and 27448 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:48,301 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:48,461 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:48,625 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:48,811 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:49,010 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:49,183 INFO L93 Difference]: Finished difference Result 23242 states and 61275 transitions. [2021-07-09 16:59:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:49,215 INFO L225 Difference]: With dead ends: 23242 [2021-07-09 16:59:49,216 INFO L226 Difference]: Without dead ends: 23242 [2021-07-09 16:59:49,216 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23242 states. [2021-07-09 16:59:49,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23242 to 10213. [2021-07-09 16:59:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 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 16:59:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-09 16:59:49,530 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-09 16:59:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:49,530 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-09 16:59:49,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-09 16:59:49,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:49,543 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:49,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:49,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-07-09 16:59:49,544 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:49,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:49,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1000735446, now seen corresponding path program 184 times [2021-07-09 16:59:49,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:49,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322375186] [2021-07-09 16:59:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:49,874 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 16:59:49,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:49,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322375186] [2021-07-09 16:59:49,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322375186] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:49,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:49,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:49,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175236550] [2021-07-09 16:59:49,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:49,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:49,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:49,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:49,875 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:50,534 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 16:59:50,705 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:50,871 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:51,075 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:51,283 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:51,481 INFO L93 Difference]: Finished difference Result 24055 states and 63079 transitions. [2021-07-09 16:59:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:51,482 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:51,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:51,516 INFO L225 Difference]: With dead ends: 24055 [2021-07-09 16:59:51,516 INFO L226 Difference]: Without dead ends: 24055 [2021-07-09 16:59:51,517 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1410.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:51,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24055 states. [2021-07-09 16:59:51,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24055 to 10197. [2021-07-09 16:59:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.696812162824914) internal successors, (27494), 10196 states have internal predecessors, (27494), 0 states have call successors, (0), 0 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 16:59:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27494 transitions. [2021-07-09 16:59:51,751 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27494 transitions. Word has length 114 [2021-07-09 16:59:51,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:51,751 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27494 transitions. [2021-07-09 16:59:51,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:51,751 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27494 transitions. [2021-07-09 16:59:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:51,763 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:51,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:51,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-07-09 16:59:51,763 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:51,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:51,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1274960244, now seen corresponding path program 185 times [2021-07-09 16:59:51,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:51,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905435242] [2021-07-09 16:59:51,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:52,071 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 16:59:52,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:52,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905435242] [2021-07-09 16:59:52,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905435242] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:52,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:52,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:52,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69316001] [2021-07-09 16:59:52,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:52,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:52,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:52,072 INFO L87 Difference]: Start difference. First operand 10197 states and 27494 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:52,930 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:53,108 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:53,281 INFO L93 Difference]: Finished difference Result 23381 states and 61492 transitions. [2021-07-09 16:59:53,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:53,281 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:53,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:53,312 INFO L225 Difference]: With dead ends: 23381 [2021-07-09 16:59:53,312 INFO L226 Difference]: Without dead ends: 23381 [2021-07-09 16:59:53,312 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1070.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23381 states. [2021-07-09 16:59:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23381 to 10213. [2021-07-09 16:59:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 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 16:59:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-09 16:59:53,617 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-09 16:59:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:53,617 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-09 16:59:53,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-09 16:59:53,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:53,628 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:53,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:53,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-07-09 16:59:53,629 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:53,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1523507224, now seen corresponding path program 186 times [2021-07-09 16:59:53,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:53,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687162703] [2021-07-09 16:59:53,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:53,921 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 16:59:53,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:53,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687162703] [2021-07-09 16:59:53,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687162703] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:53,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:53,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:53,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815567124] [2021-07-09 16:59:53,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:53,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:53,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:53,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:53,923 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:54,626 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 16:59:54,779 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:54,933 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:55,137 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:55,321 INFO L93 Difference]: Finished difference Result 20728 states and 54732 transitions. [2021-07-09 16:59:55,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:55,353 INFO L225 Difference]: With dead ends: 20728 [2021-07-09 16:59:55,354 INFO L226 Difference]: Without dead ends: 20728 [2021-07-09 16:59:55,354 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:55,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20728 states. [2021-07-09 16:59:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20728 to 10149. [2021-07-09 16:59:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10149 states, 10147 states have (on average 2.6959692519956637) internal successors, (27356), 10148 states have internal predecessors, (27356), 0 states have call successors, (0), 0 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 16:59:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10149 states to 10149 states and 27356 transitions. [2021-07-09 16:59:55,582 INFO L78 Accepts]: Start accepts. Automaton has 10149 states and 27356 transitions. Word has length 114 [2021-07-09 16:59:55,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:55,583 INFO L482 AbstractCegarLoop]: Abstraction has 10149 states and 27356 transitions. [2021-07-09 16:59:55,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 10149 states and 27356 transitions. [2021-07-09 16:59:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:55,594 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:55,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:55,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-07-09 16:59:55,595 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:55,595 INFO L82 PathProgramCache]: Analyzing trace with hash 121089612, now seen corresponding path program 187 times [2021-07-09 16:59:55,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:55,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612695461] [2021-07-09 16:59:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:55,938 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 16:59:55,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:55,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612695461] [2021-07-09 16:59:55,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612695461] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:55,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:55,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:55,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063228637] [2021-07-09 16:59:55,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:55,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:55,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:55,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:55,939 INFO L87 Difference]: Start difference. First operand 10149 states and 27356 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:56,660 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:56,817 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:56,972 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 16:59:57,165 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 16:59:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:57,336 INFO L93 Difference]: Finished difference Result 20944 states and 55532 transitions. [2021-07-09 16:59:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:57,336 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:57,368 INFO L225 Difference]: With dead ends: 20944 [2021-07-09 16:59:57,369 INFO L226 Difference]: Without dead ends: 20944 [2021-07-09 16:59:57,369 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1278.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20944 states. [2021-07-09 16:59:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20944 to 10213. [2021-07-09 16:59:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 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 16:59:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-09 16:59:57,646 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-09 16:59:57,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:57,647 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-09 16:59:57,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:57,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-09 16:59:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:57,657 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:57,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:57,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-07-09 16:59:57,657 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:57,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:57,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1964289334, now seen corresponding path program 188 times [2021-07-09 16:59:57,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:57,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128043403] [2021-07-09 16:59:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:58,031 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 16:59:58,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:58,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128043403] [2021-07-09 16:59:58,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128043403] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:58,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:58,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:59:58,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655339599] [2021-07-09 16:59:58,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:59:58,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:58,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:59:58,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:59:58,033 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:58,699 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 16:59:58,851 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 16:59:59,034 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 16:59:59,230 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 16:59:59,431 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 16:59:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:59,612 INFO L93 Difference]: Finished difference Result 20522 states and 54018 transitions. [2021-07-09 16:59:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:59:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 16:59:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:59,641 INFO L225 Difference]: With dead ends: 20522 [2021-07-09 16:59:59,641 INFO L226 Difference]: Without dead ends: 20522 [2021-07-09 16:59:59,642 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1435.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:59:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20522 states. [2021-07-09 16:59:59,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20522 to 10197. [2021-07-09 16:59:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.696812162824914) internal successors, (27494), 10196 states have internal predecessors, (27494), 0 states have call successors, (0), 0 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 16:59:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27494 transitions. [2021-07-09 16:59:59,838 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27494 transitions. Word has length 114 [2021-07-09 16:59:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:59,838 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27494 transitions. [2021-07-09 16:59:59,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 16:59:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27494 transitions. [2021-07-09 16:59:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 16:59:59,849 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:59,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:59,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-07-09 16:59:59,849 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:59,849 INFO L82 PathProgramCache]: Analyzing trace with hash 691564588, now seen corresponding path program 189 times [2021-07-09 16:59:59,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:59,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242502286] [2021-07-09 16:59:59,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:00,201 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 17:00:00,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:00,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242502286] [2021-07-09 17:00:00,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242502286] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:00,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:00,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:00,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073754309] [2021-07-09 17:00:00,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:00,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:00,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:00,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:00,203 INFO L87 Difference]: Start difference. First operand 10197 states and 27494 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:00,896 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:01,056 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:01,222 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:01,444 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:01,684 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:01,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:01,885 INFO L93 Difference]: Finished difference Result 20504 states and 54072 transitions. [2021-07-09 17:00:01,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:01,885 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:01,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:01,921 INFO L225 Difference]: With dead ends: 20504 [2021-07-09 17:00:01,921 INFO L226 Difference]: Without dead ends: 20504 [2021-07-09 17:00:01,921 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1469.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20504 states. [2021-07-09 17:00:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20504 to 10165. [2021-07-09 17:00:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10165 states, 10163 states have (on average 2.6962511069566073) internal successors, (27402), 10164 states have internal predecessors, (27402), 0 states have call successors, (0), 0 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 17:00:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10165 states to 10165 states and 27402 transitions. [2021-07-09 17:00:02,232 INFO L78 Accepts]: Start accepts. Automaton has 10165 states and 27402 transitions. Word has length 114 [2021-07-09 17:00:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:02,232 INFO L482 AbstractCegarLoop]: Abstraction has 10165 states and 27402 transitions. [2021-07-09 17:00:02,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 10165 states and 27402 transitions. [2021-07-09 17:00:02,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:02,245 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:02,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:02,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-07-09 17:00:02,245 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:02,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:02,245 INFO L82 PathProgramCache]: Analyzing trace with hash 312747274, now seen corresponding path program 190 times [2021-07-09 17:00:02,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:02,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769159124] [2021-07-09 17:00:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:02,642 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 17:00:02,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:02,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769159124] [2021-07-09 17:00:02,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769159124] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:02,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:02,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:02,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550237451] [2021-07-09 17:00:02,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:02,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:02,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:02,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:02,643 INFO L87 Difference]: Start difference. First operand 10165 states and 27402 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:03,384 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:03,529 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:00:03,685 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:03,903 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:04,114 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:04,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:04,277 INFO L93 Difference]: Finished difference Result 17230 states and 45649 transitions. [2021-07-09 17:00:04,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:04,278 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:04,305 INFO L225 Difference]: With dead ends: 17230 [2021-07-09 17:00:04,305 INFO L226 Difference]: Without dead ends: 17230 [2021-07-09 17:00:04,306 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1491.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2021-07-09 17:00:04,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 10109. [2021-07-09 17:00:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 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 17:00:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-07-09 17:00:04,537 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-07-09 17:00:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:04,537 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-07-09 17:00:04,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-07-09 17:00:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:04,553 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:04,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:04,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-07-09 17:00:04,554 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:04,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1916635700, now seen corresponding path program 191 times [2021-07-09 17:00:04,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:04,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108364578] [2021-07-09 17:00:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:04,922 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 17:00:04,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:04,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108364578] [2021-07-09 17:00:04,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108364578] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:04,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:04,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:04,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708488836] [2021-07-09 17:00:04,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:04,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:04,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:04,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:04,923 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:05,612 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:05,763 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:05,931 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:06,108 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:06,306 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:06,495 INFO L93 Difference]: Finished difference Result 22065 states and 58759 transitions. [2021-07-09 17:00:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:06,495 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:06,533 INFO L225 Difference]: With dead ends: 22065 [2021-07-09 17:00:06,533 INFO L226 Difference]: Without dead ends: 22065 [2021-07-09 17:00:06,533 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1392.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22065 states. [2021-07-09 17:00:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22065 to 10205. [2021-07-09 17:00:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10205 states, 10203 states have (on average 2.6966578457316475) internal successors, (27514), 10204 states have internal predecessors, (27514), 0 states have call successors, (0), 0 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 17:00:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 27514 transitions. [2021-07-09 17:00:06,938 INFO L78 Accepts]: Start accepts. Automaton has 10205 states and 27514 transitions. Word has length 114 [2021-07-09 17:00:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:06,938 INFO L482 AbstractCegarLoop]: Abstraction has 10205 states and 27514 transitions. [2021-07-09 17:00:06,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 10205 states and 27514 transitions. [2021-07-09 17:00:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:06,951 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:06,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:06,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-07-09 17:00:06,954 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash 292952650, now seen corresponding path program 192 times [2021-07-09 17:00:06,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:06,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650360282] [2021-07-09 17:00:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:07,348 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 17:00:07,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:07,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650360282] [2021-07-09 17:00:07,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650360282] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:07,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:07,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:07,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852870618] [2021-07-09 17:00:07,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:07,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:07,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:07,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:07,349 INFO L87 Difference]: Start difference. First operand 10205 states and 27514 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:08,036 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:08,197 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:08,374 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:08,570 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:08,777 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:08,959 INFO L93 Difference]: Finished difference Result 21643 states and 57245 transitions. [2021-07-09 17:00:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:08,994 INFO L225 Difference]: With dead ends: 21643 [2021-07-09 17:00:08,994 INFO L226 Difference]: Without dead ends: 21643 [2021-07-09 17:00:08,994 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1482.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21643 states. [2021-07-09 17:00:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21643 to 10189. [2021-07-09 17:00:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 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 17:00:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-09 17:00:09,219 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-09 17:00:09,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:09,219 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-09 17:00:09,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-09 17:00:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:09,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:09,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:09,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-07-09 17:00:09,232 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:09,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1346160724, now seen corresponding path program 193 times [2021-07-09 17:00:09,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:09,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797797116] [2021-07-09 17:00:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:09,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:09,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797797116] [2021-07-09 17:00:09,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797797116] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:09,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:09,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:09,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555559334] [2021-07-09 17:00:09,578 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:09,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:09,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:09,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:09,579 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:10,274 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:10,430 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:10,596 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:10,800 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:11,027 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:11,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:11,220 INFO L93 Difference]: Finished difference Result 19121 states and 50738 transitions. [2021-07-09 17:00:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:11,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:11,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:11,252 INFO L225 Difference]: With dead ends: 19121 [2021-07-09 17:00:11,252 INFO L226 Difference]: Without dead ends: 19121 [2021-07-09 17:00:11,252 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1448.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19121 states. [2021-07-09 17:00:11,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19121 to 10157. [2021-07-09 17:00:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 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 17:00:11,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-07-09 17:00:11,484 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-07-09 17:00:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:11,484 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-07-09 17:00:11,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:11,485 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-07-09 17:00:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:11,613 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:11,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:11,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-07-09 17:00:11,613 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:11,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:11,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1047760050, now seen corresponding path program 194 times [2021-07-09 17:00:11,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:11,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673096240] [2021-07-09 17:00:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:11,966 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 17:00:11,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:11,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673096240] [2021-07-09 17:00:11,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673096240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:11,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:11,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:11,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551268443] [2021-07-09 17:00:11,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:11,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:11,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:11,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:11,967 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:12,663 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:12,847 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:13,021 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:13,211 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:13,436 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:13,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:13,638 INFO L93 Difference]: Finished difference Result 18931 states and 50224 transitions. [2021-07-09 17:00:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:13,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:13,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:13,672 INFO L225 Difference]: With dead ends: 18931 [2021-07-09 17:00:13,672 INFO L226 Difference]: Without dead ends: 18931 [2021-07-09 17:00:13,673 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1488.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18931 states. [2021-07-09 17:00:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18931 to 10189. [2021-07-09 17:00:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 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 17:00:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-09 17:00:13,891 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-09 17:00:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:13,891 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-09 17:00:13,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:13,891 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-09 17:00:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:13,902 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:13,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:13,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-07-09 17:00:13,903 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:13,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:13,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1161828300, now seen corresponding path program 195 times [2021-07-09 17:00:13,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:13,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612669947] [2021-07-09 17:00:13,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:14,241 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 17:00:14,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:14,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612669947] [2021-07-09 17:00:14,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612669947] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:14,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:14,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:14,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843454170] [2021-07-09 17:00:14,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:14,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:14,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:14,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:14,242 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:14,942 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:15,112 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:15,280 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:15,480 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:15,685 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:15,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:15,867 INFO L93 Difference]: Finished difference Result 19744 states and 52028 transitions. [2021-07-09 17:00:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:15,867 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:15,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:15,896 INFO L225 Difference]: With dead ends: 19744 [2021-07-09 17:00:15,896 INFO L226 Difference]: Without dead ends: 19744 [2021-07-09 17:00:15,897 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1479.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:15,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19744 states. [2021-07-09 17:00:16,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19744 to 10173. [2021-07-09 17:00:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 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 17:00:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-07-09 17:00:16,098 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-07-09 17:00:16,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:16,098 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-07-09 17:00:16,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:16,098 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-07-09 17:00:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:16,110 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:16,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:16,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-07-09 17:00:16,110 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:16,110 INFO L82 PathProgramCache]: Analyzing trace with hash 887603502, now seen corresponding path program 196 times [2021-07-09 17:00:16,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:16,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819625167] [2021-07-09 17:00:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:16,514 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 17:00:16,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:16,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819625167] [2021-07-09 17:00:16,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819625167] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:16,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:16,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:16,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157348117] [2021-07-09 17:00:16,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:16,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:16,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:16,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:16,516 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:17,179 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:17,350 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:17,523 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:17,729 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:17,933 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:18,147 INFO L93 Difference]: Finished difference Result 19070 states and 50441 transitions. [2021-07-09 17:00:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:18,147 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:18,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:18,180 INFO L225 Difference]: With dead ends: 19070 [2021-07-09 17:00:18,180 INFO L226 Difference]: Without dead ends: 19070 [2021-07-09 17:00:18,180 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1447.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-07-09 17:00:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 10189. [2021-07-09 17:00:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 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 17:00:18,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-09 17:00:18,401 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-09 17:00:18,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:18,401 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-09 17:00:18,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:18,401 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-09 17:00:18,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:18,414 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:18,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:18,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-07-09 17:00:18,415 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:18,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:18,415 INFO L82 PathProgramCache]: Analyzing trace with hash 639056522, now seen corresponding path program 197 times [2021-07-09 17:00:18,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:18,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282882879] [2021-07-09 17:00:18,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:18,809 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 17:00:18,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:18,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282882879] [2021-07-09 17:00:18,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282882879] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:18,810 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:18,810 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:18,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285136083] [2021-07-09 17:00:18,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:18,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:18,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:18,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:18,810 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:19,592 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:19,781 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:20,061 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:20,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:20,241 INFO L93 Difference]: Finished difference Result 16417 states and 43681 transitions. [2021-07-09 17:00:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:20,278 INFO L225 Difference]: With dead ends: 16417 [2021-07-09 17:00:20,278 INFO L226 Difference]: Without dead ends: 16417 [2021-07-09 17:00:20,279 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16417 states. [2021-07-09 17:00:20,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16417 to 10125. [2021-07-09 17:00:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 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 17:00:20,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-07-09 17:00:20,479 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-07-09 17:00:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:20,479 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-07-09 17:00:20,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:20,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-07-09 17:00:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:20,492 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:20,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:20,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-07-09 17:00:20,493 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:20,493 INFO L82 PathProgramCache]: Analyzing trace with hash -2011313938, now seen corresponding path program 198 times [2021-07-09 17:00:20,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:20,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088582873] [2021-07-09 17:00:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:20,878 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 17:00:20,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:20,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088582873] [2021-07-09 17:00:20,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088582873] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:20,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:20,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:20,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605077015] [2021-07-09 17:00:20,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:20,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:20,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:20,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:20,880 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:21,134 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-07-09 17:00:21,544 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-09 17:00:21,687 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:21,847 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:22,047 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:22,273 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:22,493 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:22,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:22,702 INFO L93 Difference]: Finished difference Result 21366 states and 56662 transitions. [2021-07-09 17:00:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:22,702 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:22,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:22,740 INFO L225 Difference]: With dead ends: 21366 [2021-07-09 17:00:22,740 INFO L226 Difference]: Without dead ends: 21366 [2021-07-09 17:00:22,740 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1670.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2021-07-09 17:00:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 10189. [2021-07-09 17:00:22,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 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 17:00:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-09 17:00:23,022 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-09 17:00:23,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:23,022 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-09 17:00:23,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-09 17:00:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:23,035 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:23,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:23,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-07-09 17:00:23,036 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:23,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash 198274412, now seen corresponding path program 199 times [2021-07-09 17:00:23,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:23,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432288255] [2021-07-09 17:00:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:23,484 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 17:00:23,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:23,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432288255] [2021-07-09 17:00:23,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432288255] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:23,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:23,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:23,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764593159] [2021-07-09 17:00:23,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:23,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:23,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:23,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:23,485 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:24,159 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:24,306 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:24,643 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:24,863 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:25,107 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:25,288 INFO L93 Difference]: Finished difference Result 20944 states and 55148 transitions. [2021-07-09 17:00:25,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:25,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:25,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:25,324 INFO L225 Difference]: With dead ends: 20944 [2021-07-09 17:00:25,324 INFO L226 Difference]: Without dead ends: 20944 [2021-07-09 17:00:25,325 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1744.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20944 states. [2021-07-09 17:00:25,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20944 to 10173. [2021-07-09 17:00:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 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 17:00:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-07-09 17:00:25,562 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-07-09 17:00:25,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:25,563 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-07-09 17:00:25,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:25,563 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-07-09 17:00:25,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:25,575 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:25,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:25,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-07-09 17:00:25,575 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:25,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:25,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1440838962, now seen corresponding path program 200 times [2021-07-09 17:00:25,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:25,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849186916] [2021-07-09 17:00:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:25,965 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 17:00:25,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:25,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849186916] [2021-07-09 17:00:25,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849186916] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:25,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:25,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:25,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581120405] [2021-07-09 17:00:25,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:25,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:25,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:25,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:25,967 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:26,797 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:26,977 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:27,196 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:27,393 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:27,557 INFO L93 Difference]: Finished difference Result 20926 states and 55202 transitions. [2021-07-09 17:00:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:27,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:27,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:27,588 INFO L225 Difference]: With dead ends: 20926 [2021-07-09 17:00:27,589 INFO L226 Difference]: Without dead ends: 20926 [2021-07-09 17:00:27,589 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1424.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20926 states. [2021-07-09 17:00:27,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20926 to 10141. [2021-07-09 17:00:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.695532103757767) internal successors, (27330), 10140 states have internal predecessors, (27330), 0 states have call successors, (0), 0 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 17:00:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27330 transitions. [2021-07-09 17:00:27,793 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27330 transitions. Word has length 114 [2021-07-09 17:00:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:27,794 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27330 transitions. [2021-07-09 17:00:27,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27330 transitions. [2021-07-09 17:00:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:27,804 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:27,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:27,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-07-09 17:00:27,804 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:27,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:27,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1819656276, now seen corresponding path program 201 times [2021-07-09 17:00:27,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:27,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354453441] [2021-07-09 17:00:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:28,135 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 17:00:28,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:28,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354453441] [2021-07-09 17:00:28,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354453441] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:28,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:28,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:28,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172449435] [2021-07-09 17:00:28,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:28,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:28,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:28,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:28,137 INFO L87 Difference]: Start difference. First operand 10141 states and 27330 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:29,027 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:29,212 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:29,442 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:29,622 INFO L93 Difference]: Finished difference Result 17652 states and 46779 transitions. [2021-07-09 17:00:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:29,623 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:29,650 INFO L225 Difference]: With dead ends: 17652 [2021-07-09 17:00:29,650 INFO L226 Difference]: Without dead ends: 17652 [2021-07-09 17:00:29,651 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1298.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:29,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17652 states. [2021-07-09 17:00:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17652 to 10109. [2021-07-09 17:00:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 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 17:00:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-07-09 17:00:29,856 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-07-09 17:00:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:29,856 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-07-09 17:00:29,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-07-09 17:00:29,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:29,868 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:29,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:29,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-07-09 17:00:29,868 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:29,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:29,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1877751050, now seen corresponding path program 202 times [2021-07-09 17:00:29,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:29,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925575432] [2021-07-09 17:00:29,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:30,293 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 17:00:30,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:30,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925575432] [2021-07-09 17:00:30,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925575432] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:30,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:30,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:30,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697023226] [2021-07-09 17:00:30,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:30,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:30,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:30,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:30,294 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:31,013 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:31,186 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:31,376 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:31,576 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:31,830 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:32,008 INFO L93 Difference]: Finished difference Result 16617 states and 44435 transitions. [2021-07-09 17:00:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:32,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:32,036 INFO L225 Difference]: With dead ends: 16617 [2021-07-09 17:00:32,036 INFO L226 Difference]: Without dead ends: 16617 [2021-07-09 17:00:32,036 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1548.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16617 states. [2021-07-09 17:00:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16617 to 10173. [2021-07-09 17:00:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 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 17:00:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-07-09 17:00:32,239 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-07-09 17:00:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:32,240 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-07-09 17:00:32,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-07-09 17:00:32,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:32,252 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:32,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:32,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-07-09 17:00:32,252 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:32,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:32,253 INFO L82 PathProgramCache]: Analyzing trace with hash -207627896, now seen corresponding path program 203 times [2021-07-09 17:00:32,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:32,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433976984] [2021-07-09 17:00:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:32,631 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 17:00:32,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:32,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433976984] [2021-07-09 17:00:32,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433976984] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:32,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:32,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:32,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063542735] [2021-07-09 17:00:32,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:32,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:32,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:32,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:32,632 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:33,365 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:33,509 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:33,687 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:33,881 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:34,081 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:34,282 INFO L93 Difference]: Finished difference Result 16195 states and 42921 transitions. [2021-07-09 17:00:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:34,309 INFO L225 Difference]: With dead ends: 16195 [2021-07-09 17:00:34,310 INFO L226 Difference]: Without dead ends: 16195 [2021-07-09 17:00:34,310 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1467.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16195 states. [2021-07-09 17:00:34,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16195 to 10157. [2021-07-09 17:00:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 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 17:00:34,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-07-09 17:00:34,498 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-07-09 17:00:34,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:34,498 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-07-09 17:00:34,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:34,498 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-07-09 17:00:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:34,511 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:34,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:34,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-07-09 17:00:34,511 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:34,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:34,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1846741270, now seen corresponding path program 204 times [2021-07-09 17:00:34,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:34,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983438233] [2021-07-09 17:00:34,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:34,871 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 17:00:34,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:34,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983438233] [2021-07-09 17:00:34,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983438233] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:34,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:34,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:34,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195419137] [2021-07-09 17:00:34,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:34,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:34,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:34,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:34,872 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:35,544 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:35,734 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:35,930 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:36,192 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:36,413 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:36,580 INFO L93 Difference]: Finished difference Result 16177 states and 42975 transitions. [2021-07-09 17:00:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:36,609 INFO L225 Difference]: With dead ends: 16177 [2021-07-09 17:00:36,609 INFO L226 Difference]: Without dead ends: 16177 [2021-07-09 17:00:36,610 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1491.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16177 states. [2021-07-09 17:00:36,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16177 to 10125. [2021-07-09 17:00:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 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 17:00:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-07-09 17:00:36,820 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-07-09 17:00:36,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:36,820 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-07-09 17:00:36,821 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-07-09 17:00:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:36,833 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:36,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:36,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-07-09 17:00:36,834 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:36,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:36,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2069408712, now seen corresponding path program 205 times [2021-07-09 17:00:36,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:36,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447435968] [2021-07-09 17:00:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:37,235 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 17:00:37,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:37,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447435968] [2021-07-09 17:00:37,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447435968] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:37,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:37,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:37,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894479513] [2021-07-09 17:00:37,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:37,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:37,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:37,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:37,236 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:37,952 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:00:38,136 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:00:38,330 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:38,556 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:38,806 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:38,997 INFO L93 Difference]: Finished difference Result 16433 states and 43723 transitions. [2021-07-09 17:00:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:39,024 INFO L225 Difference]: With dead ends: 16433 [2021-07-09 17:00:39,024 INFO L226 Difference]: Without dead ends: 16433 [2021-07-09 17:00:39,025 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1587.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16433 states. [2021-07-09 17:00:39,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16433 to 10109. [2021-07-09 17:00:39,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 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 17:00:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-07-09 17:00:39,242 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-07-09 17:00:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:39,242 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-07-09 17:00:39,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-07-09 17:00:39,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:39,254 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:39,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:39,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-07-09 17:00:39,255 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:39,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:39,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1885314226, now seen corresponding path program 206 times [2021-07-09 17:00:39,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:39,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996580353] [2021-07-09 17:00:39,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:39,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:39,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996580353] [2021-07-09 17:00:39,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996580353] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:39,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:39,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:39,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072422386] [2021-07-09 17:00:39,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:39,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:39,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:39,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:39,629 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:40,368 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-07-09 17:00:40,525 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:00:40,708 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:41,024 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:41,232 INFO L93 Difference]: Finished difference Result 13188 states and 35239 transitions. [2021-07-09 17:00:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:41,232 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:41,253 INFO L225 Difference]: With dead ends: 13188 [2021-07-09 17:00:41,253 INFO L226 Difference]: Without dead ends: 13188 [2021-07-09 17:00:41,253 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1409.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:41,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2021-07-09 17:00:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 9965. [2021-07-09 17:00:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6917595101876945) internal successors, (26818), 9964 states have internal predecessors, (26818), 0 states have call successors, (0), 0 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 17:00:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26818 transitions. [2021-07-09 17:00:41,430 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26818 transitions. Word has length 114 [2021-07-09 17:00:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:41,430 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26818 transitions. [2021-07-09 17:00:41,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26818 transitions. [2021-07-09 17:00:41,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:41,444 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:41,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:41,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-07-09 17:00:41,444 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:41,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:41,445 INFO L82 PathProgramCache]: Analyzing trace with hash 491904332, now seen corresponding path program 207 times [2021-07-09 17:00:41,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:41,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528415624] [2021-07-09 17:00:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:41,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:41,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528415624] [2021-07-09 17:00:41,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528415624] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:41,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:41,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:41,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076902896] [2021-07-09 17:00:41,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:41,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:41,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:41,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:41,865 INFO L87 Difference]: Start difference. First operand 9965 states and 26818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:42,551 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:42,701 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:42,896 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:43,109 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:43,361 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:43,573 INFO L93 Difference]: Finished difference Result 27724 states and 73540 transitions. [2021-07-09 17:00:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:43,574 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:43,629 INFO L225 Difference]: With dead ends: 27724 [2021-07-09 17:00:43,630 INFO L226 Difference]: Without dead ends: 27724 [2021-07-09 17:00:43,630 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1578.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27724 states. [2021-07-09 17:00:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27724 to 10157. [2021-07-09 17:00:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 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 17:00:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-09 17:00:43,951 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-09 17:00:43,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:43,951 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-09 17:00:43,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:43,951 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-09 17:00:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:43,963 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:43,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:43,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-07-09 17:00:43,963 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1593474614, now seen corresponding path program 208 times [2021-07-09 17:00:43,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:43,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707680411] [2021-07-09 17:00:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:44,301 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 17:00:44,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:44,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707680411] [2021-07-09 17:00:44,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707680411] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:44,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:44,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:44,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317774832] [2021-07-09 17:00:44,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:44,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:44,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:44,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:44,302 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:45,316 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:45,461 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:45,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:45,777 INFO L93 Difference]: Finished difference Result 27302 states and 72026 transitions. [2021-07-09 17:00:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:45,778 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:45,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:45,820 INFO L225 Difference]: With dead ends: 27302 [2021-07-09 17:00:45,821 INFO L226 Difference]: Without dead ends: 27302 [2021-07-09 17:00:45,821 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1209.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2021-07-09 17:00:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 10141. [2021-07-09 17:00:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:00:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:00:46,092 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:00:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:46,092 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:00:46,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:00:46,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:46,107 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:46,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:46,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-07-09 17:00:46,108 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:46,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:46,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1062379308, now seen corresponding path program 209 times [2021-07-09 17:00:46,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:46,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496685707] [2021-07-09 17:00:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:46,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:46,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496685707] [2021-07-09 17:00:46,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496685707] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:46,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:46,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:46,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025344592] [2021-07-09 17:00:46,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:46,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:46,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:46,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:46,448 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:47,030 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-09 17:00:47,334 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:00:47,505 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:00:47,741 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:47,943 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:48,136 INFO L93 Difference]: Finished difference Result 24780 states and 65519 transitions. [2021-07-09 17:00:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:48,136 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:48,177 INFO L225 Difference]: With dead ends: 24780 [2021-07-09 17:00:48,177 INFO L226 Difference]: Without dead ends: 24780 [2021-07-09 17:00:48,178 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1457.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:48,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24780 states. [2021-07-09 17:00:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24780 to 10109. [2021-07-09 17:00:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 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 17:00:48,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-09 17:00:48,452 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-09 17:00:48,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:48,452 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-09 17:00:48,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-09 17:00:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:48,463 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:48,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:48,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-07-09 17:00:48,463 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:48,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:48,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1360779982, now seen corresponding path program 210 times [2021-07-09 17:00:48,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:48,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165406061] [2021-07-09 17:00:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:48,780 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 17:00:48,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:48,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165406061] [2021-07-09 17:00:48,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165406061] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:48,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:48,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:48,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780009653] [2021-07-09 17:00:48,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:48,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:48,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:48,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:48,781 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:49,489 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:49,675 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:49,849 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:50,054 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:50,256 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:50,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:50,549 INFO L93 Difference]: Finished difference Result 28342 states and 74567 transitions. [2021-07-09 17:00:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:50,550 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:50,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:50,610 INFO L225 Difference]: With dead ends: 28342 [2021-07-09 17:00:50,610 INFO L226 Difference]: Without dead ends: 28342 [2021-07-09 17:00:50,610 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1434.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:50,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28342 states. [2021-07-09 17:00:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28342 to 10141. [2021-07-09 17:00:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:00:50,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:00:50,951 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:00:50,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:50,951 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:00:50,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:50,951 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:00:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:50,963 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:50,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:50,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-07-09 17:00:50,963 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash -724598964, now seen corresponding path program 211 times [2021-07-09 17:00:50,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:50,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443515349] [2021-07-09 17:00:50,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:51,281 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 17:00:51,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:51,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443515349] [2021-07-09 17:00:51,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443515349] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:51,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:51,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:51,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708240264] [2021-07-09 17:00:51,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:51,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:51,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:51,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:51,282 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:51,973 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:52,169 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:52,339 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:52,557 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:52,779 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:52,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:52,992 INFO L93 Difference]: Finished difference Result 29155 states and 76371 transitions. [2021-07-09 17:00:52,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:52,993 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:52,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:53,055 INFO L225 Difference]: With dead ends: 29155 [2021-07-09 17:00:53,056 INFO L226 Difference]: Without dead ends: 29155 [2021-07-09 17:00:53,056 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1495.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:53,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29155 states. [2021-07-09 17:00:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29155 to 10125. [2021-07-09 17:00:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 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 17:00:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-09 17:00:53,353 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-09 17:00:53,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:53,353 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-09 17:00:53,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:53,353 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-09 17:00:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:53,365 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:53,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:53,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-07-09 17:00:53,365 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:53,366 INFO L82 PathProgramCache]: Analyzing trace with hash -998823762, now seen corresponding path program 212 times [2021-07-09 17:00:53,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:53,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543681970] [2021-07-09 17:00:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:53,701 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 17:00:53,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:53,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543681970] [2021-07-09 17:00:53,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543681970] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:53,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:53,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:53,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654959455] [2021-07-09 17:00:53,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:53,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:53,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:53,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:53,702 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:54,376 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:54,543 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:54,745 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:54,981 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:00:55,245 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:00:55,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:55,446 INFO L93 Difference]: Finished difference Result 28481 states and 74784 transitions. [2021-07-09 17:00:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:55,446 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:55,489 INFO L225 Difference]: With dead ends: 28481 [2021-07-09 17:00:55,489 INFO L226 Difference]: Without dead ends: 28481 [2021-07-09 17:00:55,489 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1517.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:55,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28481 states. [2021-07-09 17:00:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28481 to 10141. [2021-07-09 17:00:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:00:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:00:55,752 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:00:55,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:55,752 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:00:55,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:00:55,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:55,763 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:55,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:55,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-07-09 17:00:55,764 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:55,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:55,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1247370742, now seen corresponding path program 213 times [2021-07-09 17:00:55,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:55,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427351142] [2021-07-09 17:00:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:56,080 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 17:00:56,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:56,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427351142] [2021-07-09 17:00:56,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427351142] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:56,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:56,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:56,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448251290] [2021-07-09 17:00:56,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:56,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:56,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:56,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:56,082 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:56,774 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:56,953 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:57,118 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:57,297 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:57,511 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:00:57,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:57,691 INFO L93 Difference]: Finished difference Result 25546 states and 67310 transitions. [2021-07-09 17:00:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:00:57,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:00:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:57,729 INFO L225 Difference]: With dead ends: 25546 [2021-07-09 17:00:57,729 INFO L226 Difference]: Without dead ends: 25546 [2021-07-09 17:00:57,729 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1405.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:00:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25546 states. [2021-07-09 17:00:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25546 to 10077. [2021-07-09 17:00:57,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 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 17:00:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-09 17:00:57,967 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-09 17:00:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:57,967 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-09 17:00:57,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-09 17:00:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:00:57,977 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:57,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:57,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-07-09 17:00:57,977 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash -367022292, now seen corresponding path program 214 times [2021-07-09 17:00:57,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:57,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271992401] [2021-07-09 17:00:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:58,292 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 17:00:58,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:58,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271992401] [2021-07-09 17:00:58,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271992401] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:58,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:58,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:00:58,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723268198] [2021-07-09 17:00:58,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:00:58,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:58,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:00:58,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:00:58,294 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:00:58,987 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:00:59,157 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:00:59,322 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:00:59,576 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:00:59,799 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:00,039 INFO L93 Difference]: Finished difference Result 24718 states and 65373 transitions. [2021-07-09 17:01:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:00,039 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:00,094 INFO L225 Difference]: With dead ends: 24718 [2021-07-09 17:01:00,094 INFO L226 Difference]: Without dead ends: 24718 [2021-07-09 17:01:00,094 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1478.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24718 states. [2021-07-09 17:01:00,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24718 to 10141. [2021-07-09 17:01:00,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:00,378 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:00,378 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:00,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:00,391 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:00,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:00,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-07-09 17:01:00,391 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:00,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1842566058, now seen corresponding path program 215 times [2021-07-09 17:01:00,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:00,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342130724] [2021-07-09 17:01:00,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:00,714 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 17:01:00,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:00,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342130724] [2021-07-09 17:01:00,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342130724] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:00,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:00,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:00,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203415834] [2021-07-09 17:01:00,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:00,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:00,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:00,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:00,715 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:01,360 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:01,516 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:01,674 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:01,865 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:02,058 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:02,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:02,260 INFO L93 Difference]: Finished difference Result 25531 states and 67177 transitions. [2021-07-09 17:01:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:02,260 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:02,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:02,306 INFO L225 Difference]: With dead ends: 25531 [2021-07-09 17:01:02,306 INFO L226 Difference]: Without dead ends: 25531 [2021-07-09 17:01:02,306 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1358.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25531 states. [2021-07-09 17:01:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25531 to 10125. [2021-07-09 17:01:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 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 17:01:02,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-09 17:01:02,587 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-09 17:01:02,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:02,587 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-09 17:01:02,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:02,587 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-09 17:01:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:02,599 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:02,599 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:02,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-07-09 17:01:02,599 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:02,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:02,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1568341260, now seen corresponding path program 216 times [2021-07-09 17:01:02,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:02,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472537889] [2021-07-09 17:01:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:02,917 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 17:01:02,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:02,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472537889] [2021-07-09 17:01:02,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472537889] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:02,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:02,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:02,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587784871] [2021-07-09 17:01:02,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:02,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:02,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:02,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:02,918 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:03,815 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:03,959 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:04,098 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:04,291 INFO L93 Difference]: Finished difference Result 28644 states and 75127 transitions. [2021-07-09 17:01:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:04,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:04,337 INFO L225 Difference]: With dead ends: 28644 [2021-07-09 17:01:04,337 INFO L226 Difference]: Without dead ends: 28644 [2021-07-09 17:01:04,337 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1183.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-07-09 17:01:04,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 10141. [2021-07-09 17:01:04,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:04,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:04,611 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:04,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:04,611 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:04,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:04,622 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:04,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:04,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-07-09 17:01:04,622 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:04,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1319794280, now seen corresponding path program 217 times [2021-07-09 17:01:04,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:04,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016427254] [2021-07-09 17:01:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:04,906 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 17:01:04,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:04,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016427254] [2021-07-09 17:01:04,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016427254] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:04,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:04,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:04,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679842166] [2021-07-09 17:01:04,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:04,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:04,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:04,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:04,908 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:05,760 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:05,926 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:06,122 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:06,290 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:06,462 INFO L93 Difference]: Finished difference Result 25709 states and 67653 transitions. [2021-07-09 17:01:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:06,462 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:06,506 INFO L225 Difference]: With dead ends: 25709 [2021-07-09 17:01:06,506 INFO L226 Difference]: Without dead ends: 25709 [2021-07-09 17:01:06,506 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1315.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25709 states. [2021-07-09 17:01:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25709 to 10109. [2021-07-09 17:01:06,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 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 17:01:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-09 17:01:06,799 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-09 17:01:06,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:06,800 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-09 17:01:06,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-09 17:01:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:06,812 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:06,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:06,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-07-09 17:01:06,813 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:06,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1496710230, now seen corresponding path program 218 times [2021-07-09 17:01:06,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:06,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126250877] [2021-07-09 17:01:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:07,093 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 17:01:07,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:07,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126250877] [2021-07-09 17:01:07,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126250877] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:07,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:07,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:07,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620520943] [2021-07-09 17:01:07,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:07,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:07,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:07,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:07,096 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:07,825 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:07,962 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:08,115 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:08,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:08,280 INFO L93 Difference]: Finished difference Result 24841 states and 65544 transitions. [2021-07-09 17:01:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:08,281 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:08,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:08,325 INFO L225 Difference]: With dead ends: 24841 [2021-07-09 17:01:08,325 INFO L226 Difference]: Without dead ends: 24841 [2021-07-09 17:01:08,325 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1037.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24841 states. [2021-07-09 17:01:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24841 to 10157. [2021-07-09 17:01:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 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 17:01:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-09 17:01:08,594 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-09 17:01:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:08,594 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-09 17:01:08,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-09 17:01:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:08,607 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:08,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:08,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-07-09 17:01:08,607 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:08,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1745257210, now seen corresponding path program 219 times [2021-07-09 17:01:08,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:08,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36813454] [2021-07-09 17:01:08,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:08,886 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 17:01:08,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:08,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36813454] [2021-07-09 17:01:08,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36813454] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:08,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:08,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:08,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306369349] [2021-07-09 17:01:08,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:08,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:08,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:08,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:08,887 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:09,573 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:09,725 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:09,884 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:10,019 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:10,162 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:10,327 INFO L93 Difference]: Finished difference Result 24681 states and 65142 transitions. [2021-07-09 17:01:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:10,328 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:10,372 INFO L225 Difference]: With dead ends: 24681 [2021-07-09 17:01:10,372 INFO L226 Difference]: Without dead ends: 24681 [2021-07-09 17:01:10,373 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1232.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24681 states. [2021-07-09 17:01:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24681 to 10141. [2021-07-09 17:01:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:10,655 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:10,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:10,655 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:10,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:10,655 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:10,667 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:10,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:10,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-07-09 17:01:10,668 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:10,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1392892782, now seen corresponding path program 220 times [2021-07-09 17:01:10,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:10,668 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651087943] [2021-07-09 17:01:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:10,926 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 17:01:10,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:10,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651087943] [2021-07-09 17:01:10,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651087943] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:10,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:10,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:10,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507574839] [2021-07-09 17:01:10,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:10,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:10,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:10,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:10,928 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:11,564 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:11,967 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:12,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:12,144 INFO L93 Difference]: Finished difference Result 22114 states and 58596 transitions. [2021-07-09 17:01:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:12,144 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:12,182 INFO L225 Difference]: With dead ends: 22114 [2021-07-09 17:01:12,182 INFO L226 Difference]: Without dead ends: 22114 [2021-07-09 17:01:12,182 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1017.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22114 states. [2021-07-09 17:01:12,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22114 to 10013. [2021-07-09 17:01:12,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 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 17:01:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-07-09 17:01:12,448 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-07-09 17:01:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:12,448 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-07-09 17:01:12,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-07-09 17:01:12,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:12,460 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:12,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:12,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-07-09 17:01:12,460 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:12,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:12,461 INFO L82 PathProgramCache]: Analyzing trace with hash -346116308, now seen corresponding path program 221 times [2021-07-09 17:01:12,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:12,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922990867] [2021-07-09 17:01:12,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:12,786 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 17:01:12,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:12,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922990867] [2021-07-09 17:01:12,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922990867] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:12,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:12,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:12,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095091859] [2021-07-09 17:01:12,786 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:12,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:12,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:12,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:12,787 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:13,500 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:13,660 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:13,854 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:14,063 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:14,281 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:14,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:14,480 INFO L93 Difference]: Finished difference Result 28046 states and 74378 transitions. [2021-07-09 17:01:14,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:14,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:14,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:14,530 INFO L225 Difference]: With dead ends: 28046 [2021-07-09 17:01:14,530 INFO L226 Difference]: Without dead ends: 28046 [2021-07-09 17:01:14,530 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1450.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28046 states. [2021-07-09 17:01:14,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28046 to 10109. [2021-07-09 17:01:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 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 17:01:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-09 17:01:14,787 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-09 17:01:14,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:14,787 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-09 17:01:14,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-09 17:01:14,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:14,798 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:14,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:14,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-07-09 17:01:14,798 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:14,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:14,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1863472042, now seen corresponding path program 222 times [2021-07-09 17:01:14,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:14,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744437581] [2021-07-09 17:01:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:15,130 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 17:01:15,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:15,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744437581] [2021-07-09 17:01:15,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744437581] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:15,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:15,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:15,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439418753] [2021-07-09 17:01:15,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:15,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:15,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:15,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:15,131 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:15,775 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:15,971 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:16,152 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:16,345 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:16,544 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:16,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:16,733 INFO L93 Difference]: Finished difference Result 27624 states and 72864 transitions. [2021-07-09 17:01:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:16,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:16,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:16,775 INFO L225 Difference]: With dead ends: 27624 [2021-07-09 17:01:16,775 INFO L226 Difference]: Without dead ends: 27624 [2021-07-09 17:01:16,776 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1438.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:16,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27624 states. [2021-07-09 17:01:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27624 to 10093. [2021-07-09 17:01:17,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:01:17,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:01:17,027 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:01:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:17,027 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:01:17,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:01:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:17,038 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:17,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:17,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-07-09 17:01:17,038 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:17,038 INFO L82 PathProgramCache]: Analyzing trace with hash 224358668, now seen corresponding path program 223 times [2021-07-09 17:01:17,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:17,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842481381] [2021-07-09 17:01:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:17,371 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 17:01:17,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:17,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842481381] [2021-07-09 17:01:17,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842481381] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:17,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:17,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:17,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461962556] [2021-07-09 17:01:17,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:17,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:17,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:17,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:17,372 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:18,021 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:18,169 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:18,338 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:01:18,536 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:18,751 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:18,949 INFO L93 Difference]: Finished difference Result 25102 states and 66357 transitions. [2021-07-09 17:01:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:18,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:18,989 INFO L225 Difference]: With dead ends: 25102 [2021-07-09 17:01:18,989 INFO L226 Difference]: Without dead ends: 25102 [2021-07-09 17:01:18,990 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1388.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25102 states. [2021-07-09 17:01:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25102 to 10061. [2021-07-09 17:01:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 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 17:01:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-07-09 17:01:19,216 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-07-09 17:01:19,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:19,217 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-07-09 17:01:19,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-07-09 17:01:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:19,227 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:19,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:19,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-07-09 17:01:19,227 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash 522759342, now seen corresponding path program 224 times [2021-07-09 17:01:19,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:19,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432406185] [2021-07-09 17:01:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:19,551 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 17:01:19,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:19,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432406185] [2021-07-09 17:01:19,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432406185] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:19,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:19,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:19,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151657153] [2021-07-09 17:01:19,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:19,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:19,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:19,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:19,553 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:20,260 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:20,424 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:20,601 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:20,789 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:20,988 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:21,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:21,187 INFO L93 Difference]: Finished difference Result 24912 states and 65843 transitions. [2021-07-09 17:01:21,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:21,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:21,227 INFO L225 Difference]: With dead ends: 24912 [2021-07-09 17:01:21,227 INFO L226 Difference]: Without dead ends: 24912 [2021-07-09 17:01:21,228 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1457.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24912 states. [2021-07-09 17:01:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24912 to 10093. [2021-07-09 17:01:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:01:21,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:01:21,457 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:01:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:21,458 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:01:21,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:01:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:21,468 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:21,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:21,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-07-09 17:01:21,468 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:21,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1562619604, now seen corresponding path program 225 times [2021-07-09 17:01:21,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:21,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161039339] [2021-07-09 17:01:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:21,800 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 17:01:21,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:21,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161039339] [2021-07-09 17:01:21,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161039339] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:21,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:21,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:21,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823449249] [2021-07-09 17:01:21,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:21,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:21,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:21,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:21,802 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:22,459 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:22,619 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:22,782 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:22,982 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:23,206 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:23,404 INFO L93 Difference]: Finished difference Result 25725 states and 67647 transitions. [2021-07-09 17:01:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:23,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:23,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:23,447 INFO L225 Difference]: With dead ends: 25725 [2021-07-09 17:01:23,447 INFO L226 Difference]: Without dead ends: 25725 [2021-07-09 17:01:23,447 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1437.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25725 states. [2021-07-09 17:01:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25725 to 10077. [2021-07-09 17:01:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 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 17:01:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-09 17:01:23,687 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-09 17:01:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:23,688 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-09 17:01:23,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-09 17:01:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:23,700 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:23,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:23,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-07-09 17:01:23,701 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:23,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1836844402, now seen corresponding path program 226 times [2021-07-09 17:01:23,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:23,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377373426] [2021-07-09 17:01:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:24,023 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 17:01:24,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:24,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377373426] [2021-07-09 17:01:24,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377373426] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:24,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:24,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:24,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810773058] [2021-07-09 17:01:24,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:24,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:24,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:24,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:24,024 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:24,530 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:24,892 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:25,029 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:25,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:25,187 INFO L93 Difference]: Finished difference Result 25051 states and 66060 transitions. [2021-07-09 17:01:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:25,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:25,237 INFO L225 Difference]: With dead ends: 25051 [2021-07-09 17:01:25,237 INFO L226 Difference]: Without dead ends: 25051 [2021-07-09 17:01:25,237 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25051 states. [2021-07-09 17:01:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25051 to 10093. [2021-07-09 17:01:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:01:25,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:01:25,522 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:01:25,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:25,522 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:01:25,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:01:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:25,533 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:25,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:25,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-07-09 17:01:25,533 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:25,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:25,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2085391382, now seen corresponding path program 227 times [2021-07-09 17:01:25,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:25,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031569735] [2021-07-09 17:01:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:25,775 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 17:01:25,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:25,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031569735] [2021-07-09 17:01:25,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031569735] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:25,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:25,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:25,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380191455] [2021-07-09 17:01:25,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:25,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:25,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:25,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:25,776 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:26,476 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:26,734 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:26,881 INFO L93 Difference]: Finished difference Result 22398 states and 59300 transitions. [2021-07-09 17:01:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:26,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:26,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:26,913 INFO L225 Difference]: With dead ends: 22398 [2021-07-09 17:01:26,913 INFO L226 Difference]: Without dead ends: 22398 [2021-07-09 17:01:26,913 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 956.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22398 states. [2021-07-09 17:01:27,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22398 to 10029. [2021-07-09 17:01:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 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 17:01:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-07-09 17:01:27,122 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-07-09 17:01:27,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:27,122 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-07-09 17:01:27,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:27,123 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-07-09 17:01:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:27,133 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:27,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:27,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-07-09 17:01:27,133 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:27,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:27,133 INFO L82 PathProgramCache]: Analyzing trace with hash -440794546, now seen corresponding path program 228 times [2021-07-09 17:01:27,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:27,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751786683] [2021-07-09 17:01:27,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:27,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:27,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751786683] [2021-07-09 17:01:27,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751786683] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:27,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:27,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:27,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052206576] [2021-07-09 17:01:27,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:27,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:27,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:27,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:27,429 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:28,107 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:28,382 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:28,549 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:28,726 INFO L93 Difference]: Finished difference Result 22614 states and 60100 transitions. [2021-07-09 17:01:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:28,726 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:28,762 INFO L225 Difference]: With dead ends: 22614 [2021-07-09 17:01:28,762 INFO L226 Difference]: Without dead ends: 22614 [2021-07-09 17:01:28,762 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1120.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2021-07-09 17:01:28,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 10093. [2021-07-09 17:01:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:01:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:01:28,973 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:01:28,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:28,973 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:01:28,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:28,973 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:01:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:28,984 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:28,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:28,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-07-09 17:01:28,984 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:28,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:28,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1768793804, now seen corresponding path program 229 times [2021-07-09 17:01:28,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:28,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040473938] [2021-07-09 17:01:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:29,245 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 17:01:29,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:29,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040473938] [2021-07-09 17:01:29,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040473938] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:29,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:29,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:29,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078258684] [2021-07-09 17:01:29,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:29,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:29,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:29,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:29,246 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:30,092 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:30,230 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:30,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:30,388 INFO L93 Difference]: Finished difference Result 22192 states and 58586 transitions. [2021-07-09 17:01:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:30,388 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:30,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:30,421 INFO L225 Difference]: With dead ends: 22192 [2021-07-09 17:01:30,421 INFO L226 Difference]: Without dead ends: 22192 [2021-07-09 17:01:30,421 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 962.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:30,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22192 states. [2021-07-09 17:01:30,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22192 to 10077. [2021-07-09 17:01:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 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 17:01:30,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-09 17:01:30,641 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-09 17:01:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:30,641 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-09 17:01:30,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-09 17:01:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:30,652 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:30,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:30,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-07-09 17:01:30,653 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:30,653 INFO L82 PathProgramCache]: Analyzing trace with hash 129680430, now seen corresponding path program 230 times [2021-07-09 17:01:30,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:30,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65954080] [2021-07-09 17:01:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:30,913 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 17:01:30,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:30,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65954080] [2021-07-09 17:01:30,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65954080] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:30,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:30,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:30,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639397565] [2021-07-09 17:01:30,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:30,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:30,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:30,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:30,914 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:31,753 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:31,921 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:01:32,135 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:32,344 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:32,517 INFO L93 Difference]: Finished difference Result 22174 states and 58640 transitions. [2021-07-09 17:01:32,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:32,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:32,548 INFO L225 Difference]: With dead ends: 22174 [2021-07-09 17:01:32,549 INFO L226 Difference]: Without dead ends: 22174 [2021-07-09 17:01:32,549 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22174 states. [2021-07-09 17:01:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22174 to 10045. [2021-07-09 17:01:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 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 17:01:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-07-09 17:01:32,758 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-07-09 17:01:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:32,758 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-07-09 17:01:32,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-07-09 17:01:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:32,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:32,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:32,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-07-09 17:01:32,769 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:32,769 INFO L82 PathProgramCache]: Analyzing trace with hash -249136884, now seen corresponding path program 231 times [2021-07-09 17:01:32,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:32,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242740860] [2021-07-09 17:01:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:33,135 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 17:01:33,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:33,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242740860] [2021-07-09 17:01:33,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242740860] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:33,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:33,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:33,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291093744] [2021-07-09 17:01:33,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:33,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:33,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:33,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:33,136 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:33,807 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:01:33,946 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:01:34,101 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:01:34,306 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:34,514 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:34,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:34,693 INFO L93 Difference]: Finished difference Result 19248 states and 51069 transitions. [2021-07-09 17:01:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:34,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:34,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:34,722 INFO L225 Difference]: With dead ends: 19248 [2021-07-09 17:01:34,722 INFO L226 Difference]: Without dead ends: 19248 [2021-07-09 17:01:34,722 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1406.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:34,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19248 states. [2021-07-09 17:01:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19248 to 9981. [2021-07-09 17:01:34,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.6920533119551058) internal successors, (26864), 9980 states have internal predecessors, (26864), 0 states have call successors, (0), 0 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 17:01:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26864 transitions. [2021-07-09 17:01:34,912 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26864 transitions. Word has length 114 [2021-07-09 17:01:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:34,912 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26864 transitions. [2021-07-09 17:01:34,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26864 transitions. [2021-07-09 17:01:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:34,922 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:34,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:34,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-07-09 17:01:34,922 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:34,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:34,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1788963626, now seen corresponding path program 232 times [2021-07-09 17:01:34,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:34,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406299788] [2021-07-09 17:01:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:35,269 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 17:01:35,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:35,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406299788] [2021-07-09 17:01:35,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406299788] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:35,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:35,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:35,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357758902] [2021-07-09 17:01:35,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:35,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:35,270 INFO L87 Difference]: Start difference. First operand 9981 states and 26864 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:35,982 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:36,134 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:36,375 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:36,558 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:36,768 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:36,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:36,948 INFO L93 Difference]: Finished difference Result 21137 states and 56055 transitions. [2021-07-09 17:01:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:36,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:36,980 INFO L225 Difference]: With dead ends: 21137 [2021-07-09 17:01:36,980 INFO L226 Difference]: Without dead ends: 21137 [2021-07-09 17:01:36,980 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1493.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21137 states. [2021-07-09 17:01:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21137 to 10157. [2021-07-09 17:01:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 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 17:01:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-09 17:01:37,193 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-09 17:01:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:37,194 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-09 17:01:37,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-09 17:01:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:37,204 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:37,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:37,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-07-09 17:01:37,204 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:37,204 INFO L82 PathProgramCache]: Analyzing trace with hash -296415320, now seen corresponding path program 233 times [2021-07-09 17:01:37,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:37,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21706318] [2021-07-09 17:01:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:37,541 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 17:01:37,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:37,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21706318] [2021-07-09 17:01:37,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21706318] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:37,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:37,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:37,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406119682] [2021-07-09 17:01:37,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:37,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:37,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:37,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:37,542 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:38,225 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:38,374 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:38,556 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:38,759 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:38,965 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:39,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:39,145 INFO L93 Difference]: Finished difference Result 20715 states and 54541 transitions. [2021-07-09 17:01:39,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:39,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:39,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:39,174 INFO L225 Difference]: With dead ends: 20715 [2021-07-09 17:01:39,174 INFO L226 Difference]: Without dead ends: 20715 [2021-07-09 17:01:39,175 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1407.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20715 states. [2021-07-09 17:01:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20715 to 10141. [2021-07-09 17:01:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:39,460 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:39,460 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:39,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:39,473 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:39,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:39,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-07-09 17:01:39,473 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:39,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:39,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1935528694, now seen corresponding path program 234 times [2021-07-09 17:01:39,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:39,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276998338] [2021-07-09 17:01:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:39,794 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 17:01:39,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:39,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276998338] [2021-07-09 17:01:39,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276998338] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:39,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:39,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:39,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290400095] [2021-07-09 17:01:39,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:39,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:39,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:39,795 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:40,467 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:40,618 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:40,782 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:01:41,043 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:41,254 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:41,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:41,435 INFO L93 Difference]: Finished difference Result 18193 states and 48034 transitions. [2021-07-09 17:01:41,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:41,435 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:41,461 INFO L225 Difference]: With dead ends: 18193 [2021-07-09 17:01:41,461 INFO L226 Difference]: Without dead ends: 18193 [2021-07-09 17:01:41,461 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1432.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18193 states. [2021-07-09 17:01:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18193 to 10109. [2021-07-09 17:01:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 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 17:01:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-09 17:01:41,654 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-09 17:01:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:41,654 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-09 17:01:41,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-09 17:01:41,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:41,665 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:41,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:41,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-07-09 17:01:41,666 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:41,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:41,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1637128020, now seen corresponding path program 235 times [2021-07-09 17:01:41,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:41,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734604856] [2021-07-09 17:01:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:41,980 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 17:01:41,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:41,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734604856] [2021-07-09 17:01:41,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734604856] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:41,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:41,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:41,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885109199] [2021-07-09 17:01:41,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:41,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:41,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:41,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:41,981 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:42,635 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:42,795 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:42,960 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:43,157 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:43,373 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:43,550 INFO L93 Difference]: Finished difference Result 21755 states and 57082 transitions. [2021-07-09 17:01:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:43,580 INFO L225 Difference]: With dead ends: 21755 [2021-07-09 17:01:43,580 INFO L226 Difference]: Without dead ends: 21755 [2021-07-09 17:01:43,581 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1401.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21755 states. [2021-07-09 17:01:43,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21755 to 10141. [2021-07-09 17:01:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:43,796 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:43,796 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:43,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:43,806 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:43,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:43,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-07-09 17:01:43,807 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:43,807 INFO L82 PathProgramCache]: Analyzing trace with hash 572460330, now seen corresponding path program 236 times [2021-07-09 17:01:43,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:43,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65606595] [2021-07-09 17:01:43,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:44,128 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 17:01:44,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:44,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65606595] [2021-07-09 17:01:44,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65606595] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:44,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:44,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:44,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052156079] [2021-07-09 17:01:44,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:44,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:44,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:44,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:44,129 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:44,794 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:44,978 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:45,148 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:45,352 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:45,634 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:45,828 INFO L93 Difference]: Finished difference Result 22568 states and 58886 transitions. [2021-07-09 17:01:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:45,858 INFO L225 Difference]: With dead ends: 22568 [2021-07-09 17:01:45,858 INFO L226 Difference]: Without dead ends: 22568 [2021-07-09 17:01:45,858 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1523.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22568 states. [2021-07-09 17:01:46,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22568 to 10125. [2021-07-09 17:01:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 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 17:01:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-09 17:01:46,074 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-09 17:01:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:46,074 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-09 17:01:46,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:46,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-09 17:01:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:46,085 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:46,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:46,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-07-09 17:01:46,085 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:46,085 INFO L82 PathProgramCache]: Analyzing trace with hash 298235532, now seen corresponding path program 237 times [2021-07-09 17:01:46,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:46,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143436951] [2021-07-09 17:01:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:46,404 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 17:01:46,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:46,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143436951] [2021-07-09 17:01:46,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143436951] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:46,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:46,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:46,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074836362] [2021-07-09 17:01:46,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:46,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:46,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:46,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:46,405 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:47,045 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:47,201 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:47,363 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:47,551 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:47,748 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:47,912 INFO L93 Difference]: Finished difference Result 21894 states and 57299 transitions. [2021-07-09 17:01:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:47,912 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:47,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:47,943 INFO L225 Difference]: With dead ends: 21894 [2021-07-09 17:01:47,943 INFO L226 Difference]: Without dead ends: 21894 [2021-07-09 17:01:47,943 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1374.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21894 states. [2021-07-09 17:01:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21894 to 10141. [2021-07-09 17:01:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:48,152 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:48,152 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:48,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:48,152 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:48,162 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:48,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:48,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-07-09 17:01:48,163 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:48,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:48,163 INFO L82 PathProgramCache]: Analyzing trace with hash 49688552, now seen corresponding path program 238 times [2021-07-09 17:01:48,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:48,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376073377] [2021-07-09 17:01:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:48,480 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 17:01:48,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:48,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376073377] [2021-07-09 17:01:48,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376073377] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:48,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:48,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:48,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965677603] [2021-07-09 17:01:48,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:48,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:48,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:48,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:48,481 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:49,126 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:49,284 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:49,455 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:49,629 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:49,824 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:49,952 INFO L93 Difference]: Finished difference Result 18959 states and 49825 transitions. [2021-07-09 17:01:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:49,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:49,982 INFO L225 Difference]: With dead ends: 18959 [2021-07-09 17:01:49,982 INFO L226 Difference]: Without dead ends: 18959 [2021-07-09 17:01:49,982 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1369.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18959 states. [2021-07-09 17:01:50,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18959 to 10077. [2021-07-09 17:01:50,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 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 17:01:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-09 17:01:50,220 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-09 17:01:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:50,220 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-09 17:01:50,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-09 17:01:50,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:50,233 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:50,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:50,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-07-09 17:01:50,233 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:50,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:50,233 INFO L82 PathProgramCache]: Analyzing trace with hash 930037002, now seen corresponding path program 239 times [2021-07-09 17:01:50,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:50,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699388571] [2021-07-09 17:01:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:50,496 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 17:01:50,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:50,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699388571] [2021-07-09 17:01:50,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699388571] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:50,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:50,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:50,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534519487] [2021-07-09 17:01:50,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:50,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:50,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:50,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:50,497 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:51,142 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:51,274 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:51,544 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:51,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:51,713 INFO L93 Difference]: Finished difference Result 22313 states and 58612 transitions. [2021-07-09 17:01:51,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:51,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:51,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:51,751 INFO L225 Difference]: With dead ends: 22313 [2021-07-09 17:01:51,751 INFO L226 Difference]: Without dead ends: 22313 [2021-07-09 17:01:51,751 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1020.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:51,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22313 states. [2021-07-09 17:01:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22313 to 10141. [2021-07-09 17:01:52,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:52,042 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:52,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:52,042 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:52,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:52,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:52,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:52,057 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:52,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:52,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-07-09 17:01:52,057 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:52,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:52,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1155341944, now seen corresponding path program 240 times [2021-07-09 17:01:52,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:52,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053276484] [2021-07-09 17:01:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:52,306 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 17:01:52,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:52,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053276484] [2021-07-09 17:01:52,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053276484] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:52,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:52,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:52,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272129623] [2021-07-09 17:01:52,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:52,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:52,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:52,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:52,307 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:53,049 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:53,265 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:53,476 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:53,706 INFO L93 Difference]: Finished difference Result 23126 states and 60416 transitions. [2021-07-09 17:01:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:53,736 INFO L225 Difference]: With dead ends: 23126 [2021-07-09 17:01:53,737 INFO L226 Difference]: Without dead ends: 23126 [2021-07-09 17:01:53,737 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-07-09 17:01:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 10125. [2021-07-09 17:01:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 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 17:01:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-09 17:01:53,966 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-09 17:01:53,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:53,966 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-09 17:01:53,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:53,966 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-09 17:01:53,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:53,978 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:53,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:53,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-07-09 17:01:53,978 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:53,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:53,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1429566742, now seen corresponding path program 241 times [2021-07-09 17:01:53,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:53,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73871850] [2021-07-09 17:01:53,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:54,294 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 17:01:54,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:54,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73871850] [2021-07-09 17:01:54,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73871850] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:54,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:54,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:54,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414059072] [2021-07-09 17:01:54,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:54,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:54,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:54,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:54,295 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:55,093 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:55,280 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:55,485 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:01:55,699 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:01:55,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:55,888 INFO L93 Difference]: Finished difference Result 26239 states and 68366 transitions. [2021-07-09 17:01:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:55,889 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:55,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:55,927 INFO L225 Difference]: With dead ends: 26239 [2021-07-09 17:01:55,927 INFO L226 Difference]: Without dead ends: 26239 [2021-07-09 17:01:55,928 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1424.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26239 states. [2021-07-09 17:01:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26239 to 10141. [2021-07-09 17:01:56,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:01:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:01:56,176 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:01:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:56,176 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:01:56,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:01:56,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:56,187 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:56,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:56,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-07-09 17:01:56,187 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:56,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:56,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1678113722, now seen corresponding path program 242 times [2021-07-09 17:01:56,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:56,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532626559] [2021-07-09 17:01:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:56,518 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 17:01:56,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:56,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532626559] [2021-07-09 17:01:56,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532626559] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:56,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:56,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:56,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917152373] [2021-07-09 17:01:56,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:56,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:56,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:56,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:56,519 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:57,164 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:57,324 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:01:57,495 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:57,675 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:01:57,874 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:01:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:58,100 INFO L93 Difference]: Finished difference Result 23304 states and 60892 transitions. [2021-07-09 17:01:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:01:58,100 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:01:58,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:58,129 INFO L225 Difference]: With dead ends: 23304 [2021-07-09 17:01:58,129 INFO L226 Difference]: Without dead ends: 23304 [2021-07-09 17:01:58,129 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1387.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:01:58,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23304 states. [2021-07-09 17:01:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23304 to 10109. [2021-07-09 17:01:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 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 17:01:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-09 17:01:58,338 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-09 17:01:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:58,338 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-09 17:01:58,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-09 17:01:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:01:58,349 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:58,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:58,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-07-09 17:01:58,350 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:58,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:58,350 INFO L82 PathProgramCache]: Analyzing trace with hash -199650936, now seen corresponding path program 243 times [2021-07-09 17:01:58,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:58,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240976195] [2021-07-09 17:01:58,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:58,680 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 17:01:58,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:58,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240976195] [2021-07-09 17:01:58,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240976195] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:58,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:58,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:01:58,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435732157] [2021-07-09 17:01:58,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:01:58,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:58,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:01:58,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:01:58,681 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:01:59,370 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:01:59,517 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:01:59,699 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:01:59,895 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:00,100 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:00,289 INFO L93 Difference]: Finished difference Result 22436 states and 58783 transitions. [2021-07-09 17:02:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:00,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:00,323 INFO L225 Difference]: With dead ends: 22436 [2021-07-09 17:02:00,324 INFO L226 Difference]: Without dead ends: 22436 [2021-07-09 17:02:00,324 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1404.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:00,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2021-07-09 17:02:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 10157. [2021-07-09 17:02:00,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 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 17:02:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-09 17:02:00,555 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-09 17:02:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:00,555 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-09 17:02:00,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-09 17:02:00,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:00,566 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:00,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:00,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-07-09 17:02:00,566 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:00,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:00,566 INFO L82 PathProgramCache]: Analyzing trace with hash -448197916, now seen corresponding path program 244 times [2021-07-09 17:02:00,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:00,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787708428] [2021-07-09 17:02:00,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:00,889 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 17:02:00,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:00,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787708428] [2021-07-09 17:02:00,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787708428] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:00,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:00,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:00,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398360460] [2021-07-09 17:02:00,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:00,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:00,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:00,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:00,890 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:01,561 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:01,712 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:01,892 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:02,076 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:02,287 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:02,528 INFO L93 Difference]: Finished difference Result 22276 states and 58381 transitions. [2021-07-09 17:02:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:02,528 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:02,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:02,556 INFO L225 Difference]: With dead ends: 22276 [2021-07-09 17:02:02,556 INFO L226 Difference]: Without dead ends: 22276 [2021-07-09 17:02:02,556 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1386.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:02,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22276 states. [2021-07-09 17:02:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22276 to 10141. [2021-07-09 17:02:02,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 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 17:02:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-09 17:02:02,758 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-09 17:02:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:02,759 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-09 17:02:02,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-09 17:02:02,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:02,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:02,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:02,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-07-09 17:02:02,769 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1605015220, now seen corresponding path program 245 times [2021-07-09 17:02:02,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:02,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900480083] [2021-07-09 17:02:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:03,101 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 17:02:03,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:03,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900480083] [2021-07-09 17:02:03,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900480083] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:03,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:03,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:03,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721370738] [2021-07-09 17:02:03,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:03,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:03,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:03,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:03,102 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:03,770 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:03,917 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:04,073 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:02:04,269 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:04,477 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:04,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:04,637 INFO L93 Difference]: Finished difference Result 19427 states and 51121 transitions. [2021-07-09 17:02:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:04,638 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:04,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:04,664 INFO L225 Difference]: With dead ends: 19427 [2021-07-09 17:02:04,665 INFO L226 Difference]: Without dead ends: 19427 [2021-07-09 17:02:04,665 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1373.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:04,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19427 states. [2021-07-09 17:02:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19427 to 10013. [2021-07-09 17:02:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 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 17:02:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-07-09 17:02:04,847 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-07-09 17:02:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:04,847 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-07-09 17:02:04,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-07-09 17:02:04,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:04,857 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:04,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:04,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-07-09 17:02:04,857 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:04,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:04,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1253856522, now seen corresponding path program 246 times [2021-07-09 17:02:04,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:04,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031703006] [2021-07-09 17:02:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:05,174 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 17:02:05,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:05,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031703006] [2021-07-09 17:02:05,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031703006] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:05,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:05,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:05,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688581170] [2021-07-09 17:02:05,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:05,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:05,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:05,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:05,175 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:05,862 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:06,025 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:06,193 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:06,385 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:06,586 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:06,751 INFO L93 Difference]: Finished difference Result 17411 states and 45980 transitions. [2021-07-09 17:02:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:06,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:06,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:06,778 INFO L225 Difference]: With dead ends: 17411 [2021-07-09 17:02:06,779 INFO L226 Difference]: Without dead ends: 17411 [2021-07-09 17:02:06,779 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1406.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:06,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17411 states. [2021-07-09 17:02:07,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17411 to 10093. [2021-07-09 17:02:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:02:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:02:07,060 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:02:07,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:07,060 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:02:07,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:02:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:07,071 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:07,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:07,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-07-09 17:02:07,071 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:07,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:07,071 INFO L82 PathProgramCache]: Analyzing trace with hash -831522424, now seen corresponding path program 247 times [2021-07-09 17:02:07,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:07,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579040858] [2021-07-09 17:02:07,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:07,399 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 17:02:07,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:07,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579040858] [2021-07-09 17:02:07,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579040858] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:07,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:07,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:07,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486761952] [2021-07-09 17:02:07,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:07,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:07,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:07,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:07,401 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:08,060 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:08,223 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:08,389 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:08,588 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:08,800 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:08,971 INFO L93 Difference]: Finished difference Result 18224 states and 47784 transitions. [2021-07-09 17:02:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:08,977 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:08,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:09,011 INFO L225 Difference]: With dead ends: 18224 [2021-07-09 17:02:09,012 INFO L226 Difference]: Without dead ends: 18224 [2021-07-09 17:02:09,014 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1398.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2021-07-09 17:02:09,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 10077. [2021-07-09 17:02:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 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 17:02:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-09 17:02:09,252 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-09 17:02:09,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:09,252 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-09 17:02:09,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:09,253 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-09 17:02:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:09,265 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:09,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:09,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-07-09 17:02:09,267 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:09,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:09,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1105747222, now seen corresponding path program 248 times [2021-07-09 17:02:09,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:09,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938548551] [2021-07-09 17:02:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:09,580 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 17:02:09,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:09,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938548551] [2021-07-09 17:02:09,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938548551] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:09,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:09,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:09,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521880774] [2021-07-09 17:02:09,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:09,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:09,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:09,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:09,581 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:10,235 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:10,391 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:10,557 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:10,745 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:10,941 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:11,116 INFO L93 Difference]: Finished difference Result 21337 states and 55734 transitions. [2021-07-09 17:02:11,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:11,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:11,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:11,148 INFO L225 Difference]: With dead ends: 21337 [2021-07-09 17:02:11,148 INFO L226 Difference]: Without dead ends: 21337 [2021-07-09 17:02:11,148 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1384.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:11,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21337 states. [2021-07-09 17:02:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21337 to 10093. [2021-07-09 17:02:11,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:02:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:02:11,474 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:02:11,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:11,474 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:02:11,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:11,474 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:02:11,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:11,485 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:11,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:11,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-07-09 17:02:11,486 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:11,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:11,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1354294202, now seen corresponding path program 249 times [2021-07-09 17:02:11,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:11,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314691083] [2021-07-09 17:02:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:11,782 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 17:02:11,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:11,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314691083] [2021-07-09 17:02:11,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314691083] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:11,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:11,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:11,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246260738] [2021-07-09 17:02:11,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:11,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:11,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:11,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:11,783 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:12,418 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:12,575 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:12,734 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:12,907 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:13,108 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:13,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:13,270 INFO L93 Difference]: Finished difference Result 18402 states and 48260 transitions. [2021-07-09 17:02:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:13,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:13,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:13,300 INFO L225 Difference]: With dead ends: 18402 [2021-07-09 17:02:13,300 INFO L226 Difference]: Without dead ends: 18402 [2021-07-09 17:02:13,300 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:13,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18402 states. [2021-07-09 17:02:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18402 to 10061. [2021-07-09 17:02:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 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 17:02:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-07-09 17:02:13,536 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-07-09 17:02:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:13,537 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-07-09 17:02:13,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-07-09 17:02:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:13,550 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:13,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:13,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-07-09 17:02:13,550 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:13,550 INFO L82 PathProgramCache]: Analyzing trace with hash 124168584, now seen corresponding path program 250 times [2021-07-09 17:02:13,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:13,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683654722] [2021-07-09 17:02:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:13,877 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 17:02:13,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:13,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683654722] [2021-07-09 17:02:13,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683654722] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:13,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:13,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:13,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135807928] [2021-07-09 17:02:13,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:13,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:13,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:13,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:13,878 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:14,654 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:14,827 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:15,015 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:15,212 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:15,384 INFO L93 Difference]: Finished difference Result 21847 states and 57126 transitions. [2021-07-09 17:02:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:15,385 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:15,417 INFO L225 Difference]: With dead ends: 21847 [2021-07-09 17:02:15,417 INFO L226 Difference]: Without dead ends: 21847 [2021-07-09 17:02:15,418 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1363.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:15,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21847 states. [2021-07-09 17:02:15,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21847 to 10109. [2021-07-09 17:02:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 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 17:02:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-09 17:02:15,753 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-09 17:02:15,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:15,753 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-09 17:02:15,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-09 17:02:15,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:15,764 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:15,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:15,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-07-09 17:02:15,764 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:15,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:15,765 INFO L82 PathProgramCache]: Analyzing trace with hash -124378396, now seen corresponding path program 251 times [2021-07-09 17:02:15,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:15,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026306966] [2021-07-09 17:02:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:16,087 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 17:02:16,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:16,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026306966] [2021-07-09 17:02:16,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026306966] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:16,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:16,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:16,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696913744] [2021-07-09 17:02:16,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:16,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:16,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:16,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:16,088 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:16,873 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:17,052 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:17,231 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:17,429 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:17,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:17,601 INFO L93 Difference]: Finished difference Result 21687 states and 56724 transitions. [2021-07-09 17:02:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:17,601 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:17,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:17,633 INFO L225 Difference]: With dead ends: 21687 [2021-07-09 17:02:17,633 INFO L226 Difference]: Without dead ends: 21687 [2021-07-09 17:02:17,633 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1345.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21687 states. [2021-07-09 17:02:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21687 to 10093. [2021-07-09 17:02:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:02:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:02:17,856 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:02:17,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:17,856 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:02:17,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:02:17,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:17,867 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:17,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:17,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-07-09 17:02:17,868 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:17,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:17,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1281195700, now seen corresponding path program 252 times [2021-07-09 17:02:17,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:17,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700334837] [2021-07-09 17:02:17,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:18,204 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 17:02:18,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:18,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700334837] [2021-07-09 17:02:18,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700334837] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:18,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:18,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:18,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359033032] [2021-07-09 17:02:18,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:18,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:18,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:18,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:18,205 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:18,842 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:18,988 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:19,140 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:02:19,330 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:19,533 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:19,697 INFO L93 Difference]: Finished difference Result 18838 states and 49464 transitions. [2021-07-09 17:02:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:19,698 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:19,731 INFO L225 Difference]: With dead ends: 18838 [2021-07-09 17:02:19,731 INFO L226 Difference]: Without dead ends: 18838 [2021-07-09 17:02:19,731 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1361.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2021-07-09 17:02:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 10029. [2021-07-09 17:02:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 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 17:02:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-07-09 17:02:19,947 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-07-09 17:02:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:19,947 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-07-09 17:02:19,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-07-09 17:02:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:19,959 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:19,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:19,959 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-07-09 17:02:19,959 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:19,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:19,960 INFO L82 PathProgramCache]: Analyzing trace with hash -382834296, now seen corresponding path program 253 times [2021-07-09 17:02:19,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:19,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475065110] [2021-07-09 17:02:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:20,363 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 17:02:20,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:20,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475065110] [2021-07-09 17:02:20,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475065110] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:20,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:20,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:20,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721871153] [2021-07-09 17:02:20,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:20,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:20,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:20,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:20,364 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:21,006 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:02:21,160 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:21,341 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:21,533 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:21,753 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:21,951 INFO L93 Difference]: Finished difference Result 17502 states and 46059 transitions. [2021-07-09 17:02:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:21,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:21,985 INFO L225 Difference]: With dead ends: 17502 [2021-07-09 17:02:21,985 INFO L226 Difference]: Without dead ends: 17502 [2021-07-09 17:02:21,986 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1414.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17502 states. [2021-07-09 17:02:22,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17502 to 10093. [2021-07-09 17:02:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 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 17:02:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-09 17:02:22,202 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-09 17:02:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:22,202 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-09 17:02:22,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-09 17:02:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:22,214 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:22,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:22,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-07-09 17:02:22,214 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:22,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:22,214 INFO L82 PathProgramCache]: Analyzing trace with hash -631381276, now seen corresponding path program 254 times [2021-07-09 17:02:22,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:22,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338031744] [2021-07-09 17:02:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:22,561 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 17:02:22,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:22,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338031744] [2021-07-09 17:02:22,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338031744] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:22,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:22,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:22,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032604009] [2021-07-09 17:02:22,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:22,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:22,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:22,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:22,562 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:23,644 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:23,780 INFO L93 Difference]: Finished difference Result 17342 states and 45657 transitions. [2021-07-09 17:02:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:23,807 INFO L225 Difference]: With dead ends: 17342 [2021-07-09 17:02:23,807 INFO L226 Difference]: Without dead ends: 17342 [2021-07-09 17:02:23,807 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1141.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2021-07-09 17:02:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 10077. [2021-07-09 17:02:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 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 17:02:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-09 17:02:24,014 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-09 17:02:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:24,014 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-09 17:02:24,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-09 17:02:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:24,026 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:24,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:24,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-07-09 17:02:24,027 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:24,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1788198580, now seen corresponding path program 255 times [2021-07-09 17:02:24,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:24,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053570581] [2021-07-09 17:02:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:24,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:24,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053570581] [2021-07-09 17:02:24,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053570581] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:24,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:24,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:24,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210496513] [2021-07-09 17:02:24,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:24,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:24,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:24,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:24,336 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:25,269 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:25,402 INFO L93 Difference]: Finished difference Result 17630 states and 46485 transitions. [2021-07-09 17:02:25,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:25,402 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:25,430 INFO L225 Difference]: With dead ends: 17630 [2021-07-09 17:02:25,430 INFO L226 Difference]: Without dead ends: 17630 [2021-07-09 17:02:25,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 993.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17630 states. [2021-07-09 17:02:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17630 to 10045. [2021-07-09 17:02:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 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 17:02:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-07-09 17:02:25,638 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-07-09 17:02:25,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:25,638 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-07-09 17:02:25,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-07-09 17:02:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:25,651 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:25,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:25,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-07-09 17:02:25,651 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:25,651 INFO L82 PathProgramCache]: Analyzing trace with hash -80015442, now seen corresponding path program 256 times [2021-07-09 17:02:25,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:25,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721285100] [2021-07-09 17:02:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:25,966 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 17:02:25,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:25,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721285100] [2021-07-09 17:02:25,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721285100] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:25,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:25,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:25,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531811380] [2021-07-09 17:02:25,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:25,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:25,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:25,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:25,967 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:26,577 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:02:26,826 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:02:26,996 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:27,171 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:27,303 INFO L93 Difference]: Finished difference Result 14345 states and 38021 transitions. [2021-07-09 17:02:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:27,328 INFO L225 Difference]: With dead ends: 14345 [2021-07-09 17:02:27,328 INFO L226 Difference]: Without dead ends: 14345 [2021-07-09 17:02:27,328 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1226.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:27,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2021-07-09 17:02:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 9973. [2021-07-09 17:02:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 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 17:02:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-09 17:02:27,509 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-09 17:02:27,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:27,509 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-09 17:02:27,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-09 17:02:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:27,522 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:27,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:27,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-07-09 17:02:27,522 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:27,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1987254184, now seen corresponding path program 257 times [2021-07-09 17:02:27,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:27,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882077599] [2021-07-09 17:02:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:27,822 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 17:02:27,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:27,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882077599] [2021-07-09 17:02:27,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882077599] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:27,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:27,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:27,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775904788] [2021-07-09 17:02:27,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:27,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:27,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:27,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:27,823 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:28,149 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-07-09 17:02:28,590 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:28,748 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:28,904 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:29,080 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:29,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:29,243 INFO L93 Difference]: Finished difference Result 21514 states and 57057 transitions. [2021-07-09 17:02:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:29,277 INFO L225 Difference]: With dead ends: 21514 [2021-07-09 17:02:29,277 INFO L226 Difference]: Without dead ends: 21514 [2021-07-09 17:02:29,277 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1258.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21514 states. [2021-07-09 17:02:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21514 to 10117. [2021-07-09 17:02:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10117 states, 10115 states have (on average 2.6936233316856155) internal successors, (27246), 10116 states have internal predecessors, (27246), 0 states have call successors, (0), 0 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 17:02:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10117 states to 10117 states and 27246 transitions. [2021-07-09 17:02:29,531 INFO L78 Accepts]: Start accepts. Automaton has 10117 states and 27246 transitions. Word has length 114 [2021-07-09 17:02:29,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:29,531 INFO L482 AbstractCegarLoop]: Abstraction has 10117 states and 27246 transitions. [2021-07-09 17:02:29,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 10117 states and 27246 transitions. [2021-07-09 17:02:29,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:29,543 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:29,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:29,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-07-09 17:02:29,543 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:29,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:29,543 INFO L82 PathProgramCache]: Analyzing trace with hash -98124762, now seen corresponding path program 258 times [2021-07-09 17:02:29,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:29,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832551310] [2021-07-09 17:02:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:29,871 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 17:02:29,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:29,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832551310] [2021-07-09 17:02:29,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832551310] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:29,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:29,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:29,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140856736] [2021-07-09 17:02:29,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:29,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:29,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:29,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:29,873 INFO L87 Difference]: Start difference. First operand 10117 states and 27246 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:30,525 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:30,674 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:30,855 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:31,047 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:31,250 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:31,424 INFO L93 Difference]: Finished difference Result 21092 states and 55543 transitions. [2021-07-09 17:02:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:31,425 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:31,454 INFO L225 Difference]: With dead ends: 21092 [2021-07-09 17:02:31,454 INFO L226 Difference]: Without dead ends: 21092 [2021-07-09 17:02:31,454 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1383.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21092 states. [2021-07-09 17:02:31,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21092 to 10101. [2021-07-09 17:02:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 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 17:02:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-09 17:02:31,657 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-09 17:02:31,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:31,657 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-09 17:02:31,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:31,657 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-09 17:02:31,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:31,667 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:31,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:31,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-07-09 17:02:31,668 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:31,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:31,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1737238136, now seen corresponding path program 259 times [2021-07-09 17:02:31,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:31,668 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596921245] [2021-07-09 17:02:31,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:32,002 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 17:02:32,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:32,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596921245] [2021-07-09 17:02:32,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596921245] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:32,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:32,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:32,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378306441] [2021-07-09 17:02:32,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:32,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:32,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:32,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:32,003 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:32,423 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-07-09 17:02:32,675 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:32,824 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:32,989 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:02:33,179 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:33,399 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:33,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:33,552 INFO L93 Difference]: Finished difference Result 18570 states and 49036 transitions. [2021-07-09 17:02:33,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:33,553 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:33,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:33,579 INFO L225 Difference]: With dead ends: 18570 [2021-07-09 17:02:33,579 INFO L226 Difference]: Without dead ends: 18570 [2021-07-09 17:02:33,579 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1433.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18570 states. [2021-07-09 17:02:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18570 to 10069. [2021-07-09 17:02:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10069 states, 10067 states have (on average 2.69275851792987) internal successors, (27108), 10068 states have internal predecessors, (27108), 0 states have call successors, (0), 0 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 17:02:33,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10069 states to 10069 states and 27108 transitions. [2021-07-09 17:02:33,760 INFO L78 Accepts]: Start accepts. Automaton has 10069 states and 27108 transitions. Word has length 114 [2021-07-09 17:02:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:33,761 INFO L482 AbstractCegarLoop]: Abstraction has 10069 states and 27108 transitions. [2021-07-09 17:02:33,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 10069 states and 27108 transitions. [2021-07-09 17:02:33,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:33,771 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:33,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:33,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-07-09 17:02:33,771 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:33,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:33,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1438837462, now seen corresponding path program 260 times [2021-07-09 17:02:33,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:33,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892922669] [2021-07-09 17:02:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:34,084 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 17:02:34,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:34,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892922669] [2021-07-09 17:02:34,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892922669] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:34,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:34,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:34,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380787209] [2021-07-09 17:02:34,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:34,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:34,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:34,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:34,085 INFO L87 Difference]: Start difference. First operand 10069 states and 27108 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:34,744 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:34,906 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:35,073 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:35,252 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:35,467 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:35,652 INFO L93 Difference]: Finished difference Result 22132 states and 58084 transitions. [2021-07-09 17:02:35,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:35,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:35,685 INFO L225 Difference]: With dead ends: 22132 [2021-07-09 17:02:35,685 INFO L226 Difference]: Without dead ends: 22132 [2021-07-09 17:02:35,685 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1389.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:35,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22132 states. [2021-07-09 17:02:35,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22132 to 10101. [2021-07-09 17:02:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 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 17:02:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-09 17:02:35,898 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-09 17:02:35,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:35,899 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-09 17:02:35,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:35,899 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-09 17:02:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:35,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:35,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:35,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-07-09 17:02:35,909 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:35,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:35,910 INFO L82 PathProgramCache]: Analyzing trace with hash 770750888, now seen corresponding path program 261 times [2021-07-09 17:02:35,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:35,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775671772] [2021-07-09 17:02:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:36,240 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 17:02:36,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:36,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775671772] [2021-07-09 17:02:36,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775671772] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:36,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:36,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:36,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537337517] [2021-07-09 17:02:36,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:36,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:36,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:36,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:36,241 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:36,954 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:37,117 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:37,308 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:37,497 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:37,694 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:37,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:37,860 INFO L93 Difference]: Finished difference Result 22945 states and 59888 transitions. [2021-07-09 17:02:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:37,861 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:37,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:37,893 INFO L225 Difference]: With dead ends: 22945 [2021-07-09 17:02:37,893 INFO L226 Difference]: Without dead ends: 22945 [2021-07-09 17:02:37,893 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1496.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:37,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22945 states. [2021-07-09 17:02:38,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22945 to 10085. [2021-07-09 17:02:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 10083 states have (on average 2.6930477040563323) internal successors, (27154), 10084 states have internal predecessors, (27154), 0 states have call successors, (0), 0 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 17:02:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 27154 transitions. [2021-07-09 17:02:38,134 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 27154 transitions. Word has length 114 [2021-07-09 17:02:38,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:38,134 INFO L482 AbstractCegarLoop]: Abstraction has 10085 states and 27154 transitions. [2021-07-09 17:02:38,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 27154 transitions. [2021-07-09 17:02:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:38,145 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:38,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:38,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-07-09 17:02:38,145 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:38,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:38,145 INFO L82 PathProgramCache]: Analyzing trace with hash 496526090, now seen corresponding path program 262 times [2021-07-09 17:02:38,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:38,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935790514] [2021-07-09 17:02:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:38,463 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 17:02:38,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:38,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935790514] [2021-07-09 17:02:38,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935790514] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:38,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:38,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:38,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041719433] [2021-07-09 17:02:38,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:38,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:38,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:38,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:38,464 INFO L87 Difference]: Start difference. First operand 10085 states and 27154 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:39,098 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:39,256 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:39,417 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:39,604 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:39,808 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:39,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:39,969 INFO L93 Difference]: Finished difference Result 22271 states and 58301 transitions. [2021-07-09 17:02:39,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:39,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:39,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:40,001 INFO L225 Difference]: With dead ends: 22271 [2021-07-09 17:02:40,001 INFO L226 Difference]: Without dead ends: 22271 [2021-07-09 17:02:40,002 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1389.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22271 states. [2021-07-09 17:02:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22271 to 10101. [2021-07-09 17:02:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 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 17:02:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-09 17:02:40,243 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-09 17:02:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:40,243 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-09 17:02:40,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:40,243 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-09 17:02:40,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:40,254 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:40,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:40,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-07-09 17:02:40,254 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:40,254 INFO L82 PathProgramCache]: Analyzing trace with hash 247979110, now seen corresponding path program 263 times [2021-07-09 17:02:40,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:40,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921751263] [2021-07-09 17:02:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:40,569 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 17:02:40,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:40,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921751263] [2021-07-09 17:02:40,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921751263] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:40,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:40,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:40,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349706592] [2021-07-09 17:02:40,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:40,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:40,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:40,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:40,570 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:41,203 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:41,427 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:41,589 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:41,762 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:41,957 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:42,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:42,090 INFO L93 Difference]: Finished difference Result 19336 states and 50827 transitions. [2021-07-09 17:02:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:42,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:42,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:42,117 INFO L225 Difference]: With dead ends: 19336 [2021-07-09 17:02:42,118 INFO L226 Difference]: Without dead ends: 19336 [2021-07-09 17:02:42,118 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1427.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19336 states. [2021-07-09 17:02:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19336 to 10037. [2021-07-09 17:02:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 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 17:02:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-09 17:02:42,316 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-09 17:02:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:42,316 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-09 17:02:42,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-09 17:02:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:42,326 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:42,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:42,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-07-09 17:02:42,326 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:42,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1128327560, now seen corresponding path program 264 times [2021-07-09 17:02:42,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:42,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793927347] [2021-07-09 17:02:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:42,653 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 17:02:42,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:42,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793927347] [2021-07-09 17:02:42,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793927347] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:42,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:42,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:42,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992812803] [2021-07-09 17:02:42,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:42,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:42,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:42,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:42,654 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:43,310 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:43,469 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:43,628 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:43,805 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:44,002 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:44,153 INFO L93 Difference]: Finished difference Result 18508 states and 48890 transitions. [2021-07-09 17:02:44,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:44,153 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:44,178 INFO L225 Difference]: With dead ends: 18508 [2021-07-09 17:02:44,178 INFO L226 Difference]: Without dead ends: 18508 [2021-07-09 17:02:44,178 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1386.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:44,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18508 states. [2021-07-09 17:02:44,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18508 to 10101. [2021-07-09 17:02:44,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 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 17:02:44,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-09 17:02:44,365 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-09 17:02:44,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:44,365 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-09 17:02:44,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:44,365 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-09 17:02:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:44,375 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:44,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:44,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-07-09 17:02:44,376 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:44,376 INFO L82 PathProgramCache]: Analyzing trace with hash -957051386, now seen corresponding path program 265 times [2021-07-09 17:02:44,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:44,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180977400] [2021-07-09 17:02:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:44,706 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 17:02:44,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:44,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180977400] [2021-07-09 17:02:44,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180977400] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:44,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:44,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:44,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338942073] [2021-07-09 17:02:44,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:44,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:44,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:44,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:44,708 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:45,362 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:45,521 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:45,682 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:45,931 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:46,127 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:46,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:46,292 INFO L93 Difference]: Finished difference Result 19321 states and 50694 transitions. [2021-07-09 17:02:46,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:46,293 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:46,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:46,320 INFO L225 Difference]: With dead ends: 19321 [2021-07-09 17:02:46,320 INFO L226 Difference]: Without dead ends: 19321 [2021-07-09 17:02:46,320 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1436.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19321 states. [2021-07-09 17:02:46,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19321 to 10085. [2021-07-09 17:02:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 10083 states have (on average 2.6930477040563323) internal successors, (27154), 10084 states have internal predecessors, (27154), 0 states have call successors, (0), 0 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 17:02:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 27154 transitions. [2021-07-09 17:02:46,511 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 27154 transitions. Word has length 114 [2021-07-09 17:02:46,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:46,511 INFO L482 AbstractCegarLoop]: Abstraction has 10085 states and 27154 transitions. [2021-07-09 17:02:46,511 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 27154 transitions. [2021-07-09 17:02:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:46,522 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:46,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:46,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-07-09 17:02:46,522 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:46,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:46,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1231276184, now seen corresponding path program 266 times [2021-07-09 17:02:46,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:46,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815585370] [2021-07-09 17:02:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:46,836 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 17:02:46,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:46,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815585370] [2021-07-09 17:02:46,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815585370] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:46,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:46,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:46,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240286771] [2021-07-09 17:02:46,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:46,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:46,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:46,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:46,837 INFO L87 Difference]: Start difference. First operand 10085 states and 27154 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:47,469 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:47,621 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:47,781 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:47,969 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:48,166 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:48,328 INFO L93 Difference]: Finished difference Result 22434 states and 58644 transitions. [2021-07-09 17:02:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:48,361 INFO L225 Difference]: With dead ends: 22434 [2021-07-09 17:02:48,361 INFO L226 Difference]: Without dead ends: 22434 [2021-07-09 17:02:48,362 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:48,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2021-07-09 17:02:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 10101. [2021-07-09 17:02:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 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 17:02:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-09 17:02:48,583 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-09 17:02:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:48,583 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-09 17:02:48,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-09 17:02:48,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:48,594 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:48,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:48,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-07-09 17:02:48,594 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:48,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1479823164, now seen corresponding path program 267 times [2021-07-09 17:02:48,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:48,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915688899] [2021-07-09 17:02:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:48,914 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 17:02:48,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:48,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915688899] [2021-07-09 17:02:48,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915688899] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:48,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:48,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:48,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073979517] [2021-07-09 17:02:48,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:48,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:48,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:48,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:48,916 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:49,581 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:49,739 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:02:49,902 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:50,083 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:50,349 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:50,521 INFO L93 Difference]: Finished difference Result 19499 states and 51170 transitions. [2021-07-09 17:02:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:50,552 INFO L225 Difference]: With dead ends: 19499 [2021-07-09 17:02:50,552 INFO L226 Difference]: Without dead ends: 19499 [2021-07-09 17:02:50,552 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1444.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:50,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19499 states. [2021-07-09 17:02:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19499 to 10069. [2021-07-09 17:02:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10069 states, 10067 states have (on average 2.69275851792987) internal successors, (27108), 10068 states have internal predecessors, (27108), 0 states have call successors, (0), 0 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 17:02:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10069 states to 10069 states and 27108 transitions. [2021-07-09 17:02:50,749 INFO L78 Accepts]: Start accepts. Automaton has 10069 states and 27108 transitions. Word has length 114 [2021-07-09 17:02:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:50,749 INFO L482 AbstractCegarLoop]: Abstraction has 10069 states and 27108 transitions. [2021-07-09 17:02:50,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10069 states and 27108 transitions. [2021-07-09 17:02:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:50,759 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:50,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:50,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-07-09 17:02:50,760 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:50,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:50,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1360378, now seen corresponding path program 268 times [2021-07-09 17:02:50,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:50,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504884617] [2021-07-09 17:02:50,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:51,076 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 17:02:51,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:51,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504884617] [2021-07-09 17:02:51,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504884617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:51,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:51,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:51,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934230805] [2021-07-09 17:02:51,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:51,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:51,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:51,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:51,078 INFO L87 Difference]: Start difference. First operand 10069 states and 27108 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:51,761 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:51,920 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:52,119 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:52,311 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:02:52,516 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:02:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:52,686 INFO L93 Difference]: Finished difference Result 18631 states and 49061 transitions. [2021-07-09 17:02:52,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:52,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:52,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:52,712 INFO L225 Difference]: With dead ends: 18631 [2021-07-09 17:02:52,712 INFO L226 Difference]: Without dead ends: 18631 [2021-07-09 17:02:52,713 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1430.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:52,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18631 states. [2021-07-09 17:02:52,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18631 to 10117. [2021-07-09 17:02:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10117 states, 10115 states have (on average 2.6936233316856155) internal successors, (27246), 10116 states have internal predecessors, (27246), 0 states have call successors, (0), 0 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 17:02:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10117 states to 10117 states and 27246 transitions. [2021-07-09 17:02:52,914 INFO L78 Accepts]: Start accepts. Automaton has 10117 states and 27246 transitions. Word has length 114 [2021-07-09 17:02:52,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:52,914 INFO L482 AbstractCegarLoop]: Abstraction has 10117 states and 27246 transitions. [2021-07-09 17:02:52,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:52,914 INFO L276 IsEmpty]: Start isEmpty. Operand 10117 states and 27246 transitions. [2021-07-09 17:02:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:52,926 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:52,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:52,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-07-09 17:02:52,926 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:52,926 INFO L82 PathProgramCache]: Analyzing trace with hash -249907358, now seen corresponding path program 269 times [2021-07-09 17:02:52,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:52,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497253854] [2021-07-09 17:02:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:53,275 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 17:02:53,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:53,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497253854] [2021-07-09 17:02:53,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497253854] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:53,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:53,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:53,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329226990] [2021-07-09 17:02:53,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:53,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:53,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:53,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:53,276 INFO L87 Difference]: Start difference. First operand 10117 states and 27246 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:53,921 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:54,068 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:54,240 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:54,421 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:54,626 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:54,781 INFO L93 Difference]: Finished difference Result 18471 states and 48659 transitions. [2021-07-09 17:02:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:54,781 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:54,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:54,912 INFO L225 Difference]: With dead ends: 18471 [2021-07-09 17:02:54,912 INFO L226 Difference]: Without dead ends: 18471 [2021-07-09 17:02:54,912 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1394.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:54,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18471 states. [2021-07-09 17:02:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18471 to 10101. [2021-07-09 17:02:55,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 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 17:02:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-09 17:02:55,075 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-09 17:02:55,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:55,076 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-09 17:02:55,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:55,076 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-09 17:02:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:55,086 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:55,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:55,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-07-09 17:02:55,086 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:55,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:55,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1406724662, now seen corresponding path program 270 times [2021-07-09 17:02:55,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:55,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946312008] [2021-07-09 17:02:55,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:55,416 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 17:02:55,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:55,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946312008] [2021-07-09 17:02:55,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946312008] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:55,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:55,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:55,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184629259] [2021-07-09 17:02:55,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:55,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:55,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:55,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:55,417 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:56,051 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:56,201 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:56,357 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:02:56,566 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:56,767 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:56,912 INFO L93 Difference]: Finished difference Result 15904 states and 42113 transitions. [2021-07-09 17:02:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:56,912 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:56,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:56,936 INFO L225 Difference]: With dead ends: 15904 [2021-07-09 17:02:56,936 INFO L226 Difference]: Without dead ends: 15904 [2021-07-09 17:02:56,937 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1387.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2021-07-09 17:02:57,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 9973. [2021-07-09 17:02:57,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 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 17:02:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-09 17:02:57,101 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-09 17:02:57,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:57,102 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-09 17:02:57,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-09 17:02:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:57,112 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:57,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:57,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-07-09 17:02:57,112 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:57,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:57,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1149233544, now seen corresponding path program 271 times [2021-07-09 17:02:57,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:57,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5248371] [2021-07-09 17:02:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:57,443 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 17:02:57,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:57,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5248371] [2021-07-09 17:02:57,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5248371] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:57,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:57,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:57,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389278083] [2021-07-09 17:02:57,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:57,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:57,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:57,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:57,444 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:58,095 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:02:58,244 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:02:58,435 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:02:58,619 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:02:58,832 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:02:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:59,004 INFO L93 Difference]: Finished difference Result 21836 states and 57895 transitions. [2021-07-09 17:02:59,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:02:59,004 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:02:59,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:59,038 INFO L225 Difference]: With dead ends: 21836 [2021-07-09 17:02:59,039 INFO L226 Difference]: Without dead ends: 21836 [2021-07-09 17:02:59,039 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1399.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:02:59,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21836 states. [2021-07-09 17:02:59,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21836 to 10053. [2021-07-09 17:02:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10053 states, 10051 states have (on average 2.692468411103373) internal successors, (27062), 10052 states have internal predecessors, (27062), 0 states have call successors, (0), 0 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 17:02:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10053 states to 10053 states and 27062 transitions. [2021-07-09 17:02:59,348 INFO L78 Accepts]: Start accepts. Automaton has 10053 states and 27062 transitions. Word has length 114 [2021-07-09 17:02:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:59,348 INFO L482 AbstractCegarLoop]: Abstraction has 10053 states and 27062 transitions. [2021-07-09 17:02:59,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:02:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 10053 states and 27062 transitions. [2021-07-09 17:02:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:02:59,359 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:59,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:59,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-07-09 17:02:59,359 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:59,359 INFO L82 PathProgramCache]: Analyzing trace with hash -936145402, now seen corresponding path program 272 times [2021-07-09 17:02:59,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:59,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204145116] [2021-07-09 17:02:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:59,688 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 17:02:59,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:59,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204145116] [2021-07-09 17:02:59,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204145116] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:59,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:59,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:02:59,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786725740] [2021-07-09 17:02:59,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:02:59,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:59,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:02:59,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:02:59,689 INFO L87 Difference]: Start difference. First operand 10053 states and 27062 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:00,478 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:00,656 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:00,849 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:01,048 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:01,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:01,246 INFO L93 Difference]: Finished difference Result 21414 states and 56381 transitions. [2021-07-09 17:03:01,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:01,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:01,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:01,279 INFO L225 Difference]: With dead ends: 21414 [2021-07-09 17:03:01,280 INFO L226 Difference]: Without dead ends: 21414 [2021-07-09 17:03:01,280 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:01,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21414 states. [2021-07-09 17:03:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21414 to 10037. [2021-07-09 17:03:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 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 17:03:01,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-09 17:03:01,515 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-09 17:03:01,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:01,516 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-09 17:03:01,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-09 17:03:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:01,527 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:01,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:01,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-07-09 17:03:01,527 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:01,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:01,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1719708520, now seen corresponding path program 273 times [2021-07-09 17:03:01,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:01,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451549327] [2021-07-09 17:03:01,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:01,857 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 17:03:01,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:01,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451549327] [2021-07-09 17:03:01,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451549327] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:01,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:01,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:01,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655760457] [2021-07-09 17:03:01,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:01,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:01,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:01,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:01,858 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:02,625 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:02,774 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:03:02,964 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:03,164 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:03,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:03,334 INFO L93 Difference]: Finished difference Result 18892 states and 49874 transitions. [2021-07-09 17:03:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:03,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:03,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:03,364 INFO L225 Difference]: With dead ends: 18892 [2021-07-09 17:03:03,364 INFO L226 Difference]: Without dead ends: 18892 [2021-07-09 17:03:03,364 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1337.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18892 states. [2021-07-09 17:03:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18892 to 10005. [2021-07-09 17:03:03,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 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 17:03:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-07-09 17:03:03,623 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-07-09 17:03:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:03,623 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-07-09 17:03:03,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-07-09 17:03:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:03,635 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:03,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:03,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-07-09 17:03:03,635 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash 2018109194, now seen corresponding path program 274 times [2021-07-09 17:03:03,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:03,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697974260] [2021-07-09 17:03:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:03,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:03,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697974260] [2021-07-09 17:03:03,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697974260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:03,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:03,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:03,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43534364] [2021-07-09 17:03:03,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:03,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:03,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:03,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:03,947 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:04,725 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:04,885 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:05,063 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:05,265 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:05,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:05,434 INFO L93 Difference]: Finished difference Result 18702 states and 49360 transitions. [2021-07-09 17:03:05,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:05,434 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:05,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:05,464 INFO L225 Difference]: With dead ends: 18702 [2021-07-09 17:03:05,464 INFO L226 Difference]: Without dead ends: 18702 [2021-07-09 17:03:05,464 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1345.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:05,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18702 states. [2021-07-09 17:03:05,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18702 to 10037. [2021-07-09 17:03:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 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 17:03:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-09 17:03:05,689 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-09 17:03:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:05,690 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-09 17:03:05,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-09 17:03:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:05,701 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:05,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:05,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-07-09 17:03:05,702 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:05,702 INFO L82 PathProgramCache]: Analyzing trace with hash -67269752, now seen corresponding path program 275 times [2021-07-09 17:03:05,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:05,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066725766] [2021-07-09 17:03:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:06,018 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 17:03:06,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:06,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066725766] [2021-07-09 17:03:06,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066725766] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:06,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:06,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:06,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838593692] [2021-07-09 17:03:06,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:06,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:06,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:06,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:06,019 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:06,864 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:07,007 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:07,146 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:07,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:07,316 INFO L93 Difference]: Finished difference Result 19515 states and 51164 transitions. [2021-07-09 17:03:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:07,316 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:07,346 INFO L225 Difference]: With dead ends: 19515 [2021-07-09 17:03:07,346 INFO L226 Difference]: Without dead ends: 19515 [2021-07-09 17:03:07,347 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1148.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19515 states. [2021-07-09 17:03:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19515 to 10021. [2021-07-09 17:03:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 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 17:03:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-07-09 17:03:07,573 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-07-09 17:03:07,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:07,573 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-07-09 17:03:07,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:07,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-07-09 17:03:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:07,653 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:07,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:07,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-07-09 17:03:07,654 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:07,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:07,654 INFO L82 PathProgramCache]: Analyzing trace with hash -341494550, now seen corresponding path program 276 times [2021-07-09 17:03:07,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:07,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301470078] [2021-07-09 17:03:07,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:07,905 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 17:03:07,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:07,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301470078] [2021-07-09 17:03:07,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301470078] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:07,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:07,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:07,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109985267] [2021-07-09 17:03:07,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:07,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:07,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:07,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:07,906 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:08,731 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:08,874 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:09,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:09,026 INFO L93 Difference]: Finished difference Result 18841 states and 49577 transitions. [2021-07-09 17:03:09,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:09,027 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:09,057 INFO L225 Difference]: With dead ends: 18841 [2021-07-09 17:03:09,057 INFO L226 Difference]: Without dead ends: 18841 [2021-07-09 17:03:09,057 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 955.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18841 states. [2021-07-09 17:03:09,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18841 to 10037. [2021-07-09 17:03:09,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 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 17:03:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-09 17:03:09,286 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-09 17:03:09,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:09,286 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-09 17:03:09,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-09 17:03:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:09,301 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:09,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:09,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-07-09 17:03:09,301 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:09,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:09,302 INFO L82 PathProgramCache]: Analyzing trace with hash -590041530, now seen corresponding path program 277 times [2021-07-09 17:03:09,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:09,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373844797] [2021-07-09 17:03:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:09,547 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 17:03:09,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:09,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373844797] [2021-07-09 17:03:09,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373844797] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:09,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:09,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:09,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010383534] [2021-07-09 17:03:09,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:09,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:09,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:09,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:09,549 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:10,184 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:10,324 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:10,476 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:10,646 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:10,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:10,793 INFO L93 Difference]: Finished difference Result 16188 states and 42817 transitions. [2021-07-09 17:03:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:10,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:10,820 INFO L225 Difference]: With dead ends: 16188 [2021-07-09 17:03:10,820 INFO L226 Difference]: Without dead ends: 16188 [2021-07-09 17:03:10,820 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1098.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:10,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16188 states. [2021-07-09 17:03:10,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16188 to 9973. [2021-07-09 17:03:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 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 17:03:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-09 17:03:11,017 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-09 17:03:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:11,017 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-09 17:03:11,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-09 17:03:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:11,029 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:11,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:11,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-07-09 17:03:11,030 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:11,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1054555306, now seen corresponding path program 278 times [2021-07-09 17:03:11,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:11,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163172722] [2021-07-09 17:03:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:11,411 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 17:03:11,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:11,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163172722] [2021-07-09 17:03:11,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163172722] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:11,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:11,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:11,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416749813] [2021-07-09 17:03:11,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:11,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:11,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:11,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:11,412 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:12,271 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:12,435 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:12,615 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:12,773 INFO L93 Difference]: Finished difference Result 16404 states and 43617 transitions. [2021-07-09 17:03:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:12,773 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:12,796 INFO L225 Difference]: With dead ends: 16404 [2021-07-09 17:03:12,796 INFO L226 Difference]: Without dead ends: 16404 [2021-07-09 17:03:12,796 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1281.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16404 states. [2021-07-09 17:03:12,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16404 to 10021. [2021-07-09 17:03:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 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 17:03:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-07-09 17:03:12,970 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-07-09 17:03:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:12,970 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-07-09 17:03:12,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-07-09 17:03:12,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:12,980 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:12,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:12,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-07-09 17:03:12,980 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:12,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:12,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1030823640, now seen corresponding path program 279 times [2021-07-09 17:03:12,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:12,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333211772] [2021-07-09 17:03:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:13,336 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 17:03:13,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:13,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333211772] [2021-07-09 17:03:13,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333211772] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:13,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:13,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:13,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823671136] [2021-07-09 17:03:13,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:13,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:13,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:13,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:13,337 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:13,991 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:03:14,134 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:14,311 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:14,503 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:14,700 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:14,843 INFO L93 Difference]: Finished difference Result 15982 states and 42103 transitions. [2021-07-09 17:03:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:14,864 INFO L225 Difference]: With dead ends: 15982 [2021-07-09 17:03:14,865 INFO L226 Difference]: Without dead ends: 15982 [2021-07-09 17:03:14,865 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1420.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:14,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15982 states. [2021-07-09 17:03:15,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15982 to 10005. [2021-07-09 17:03:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 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 17:03:15,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-07-09 17:03:15,031 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-07-09 17:03:15,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:15,031 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-07-09 17:03:15,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:15,031 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-07-09 17:03:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:15,042 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:15,042 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:15,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-07-09 17:03:15,042 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:15,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:15,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1625030282, now seen corresponding path program 280 times [2021-07-09 17:03:15,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:15,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994089100] [2021-07-09 17:03:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:15,388 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 17:03:15,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:15,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994089100] [2021-07-09 17:03:15,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994089100] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:15,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:15,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:15,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850214508] [2021-07-09 17:03:15,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:15,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:15,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:15,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:15,389 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:16,099 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:03:16,244 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:16,398 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:03:16,597 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:16,803 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:16,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:16,946 INFO L93 Difference]: Finished difference Result 15964 states and 42157 transitions. [2021-07-09 17:03:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:16,947 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:16,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:16,968 INFO L225 Difference]: With dead ends: 15964 [2021-07-09 17:03:16,968 INFO L226 Difference]: Without dead ends: 15964 [2021-07-09 17:03:16,968 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:16,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15964 states. [2021-07-09 17:03:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15964 to 9973. [2021-07-09 17:03:17,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 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 17:03:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-09 17:03:17,129 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-09 17:03:17,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:17,129 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-09 17:03:17,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-09 17:03:17,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:17,139 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:17,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:17,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-07-09 17:03:17,139 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:17,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1246212968, now seen corresponding path program 281 times [2021-07-09 17:03:17,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:17,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554898465] [2021-07-09 17:03:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:17,484 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 17:03:17,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:17,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554898465] [2021-07-09 17:03:17,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554898465] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:17,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:17,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:17,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552839315] [2021-07-09 17:03:17,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:17,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:17,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:17,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:17,485 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:18,152 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:03:18,289 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:03:18,438 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:03:18,636 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:18,841 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:18,989 INFO L93 Difference]: Finished difference Result 13038 states and 34586 transitions. [2021-07-09 17:03:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:18,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:18,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:19,008 INFO L225 Difference]: With dead ends: 13038 [2021-07-09 17:03:19,008 INFO L226 Difference]: Without dead ends: 13038 [2021-07-09 17:03:19,008 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1379.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13038 states. [2021-07-09 17:03:19,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13038 to 9821. [2021-07-09 17:03:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9819 states have (on average 2.68785008656686) internal successors, (26392), 9820 states have internal predecessors, (26392), 0 states have call successors, (0), 0 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 17:03:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 26392 transitions. [2021-07-09 17:03:19,155 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 26392 transitions. Word has length 114 [2021-07-09 17:03:19,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:19,155 INFO L482 AbstractCegarLoop]: Abstraction has 9821 states and 26392 transitions. [2021-07-09 17:03:19,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 26392 transitions. [2021-07-09 17:03:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:19,165 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:19,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:19,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-07-09 17:03:19,166 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:19,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:19,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1010653818, now seen corresponding path program 282 times [2021-07-09 17:03:19,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:19,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928320203] [2021-07-09 17:03:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:19,498 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 17:03:19,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:19,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928320203] [2021-07-09 17:03:19,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928320203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:19,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:19,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:19,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354901867] [2021-07-09 17:03:19,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:19,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:19,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:19,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:19,500 INFO L87 Difference]: Start difference. First operand 9821 states and 26392 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:20,116 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:20,331 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:20,545 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:20,745 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:20,963 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:21,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:21,142 INFO L93 Difference]: Finished difference Result 21012 states and 55493 transitions. [2021-07-09 17:03:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:21,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:21,171 INFO L225 Difference]: With dead ends: 21012 [2021-07-09 17:03:21,171 INFO L226 Difference]: Without dead ends: 21012 [2021-07-09 17:03:21,172 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1464.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:21,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21012 states. [2021-07-09 17:03:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21012 to 9997. [2021-07-09 17:03:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 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 17:03:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-07-09 17:03:21,386 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-07-09 17:03:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:21,386 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-07-09 17:03:21,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-07-09 17:03:21,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:21,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:21,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:21,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-07-09 17:03:21,397 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:21,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:21,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1198934532, now seen corresponding path program 283 times [2021-07-09 17:03:21,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:21,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640614023] [2021-07-09 17:03:21,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:21,734 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 17:03:21,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:21,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640614023] [2021-07-09 17:03:21,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640614023] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:21,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:21,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:21,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804282238] [2021-07-09 17:03:21,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:21,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:21,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:21,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:21,735 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:22,438 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:22,586 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:22,760 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:22,954 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:23,155 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:23,320 INFO L93 Difference]: Finished difference Result 20590 states and 53979 transitions. [2021-07-09 17:03:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:23,355 INFO L225 Difference]: With dead ends: 20590 [2021-07-09 17:03:23,355 INFO L226 Difference]: Without dead ends: 20590 [2021-07-09 17:03:23,356 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1443.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20590 states. [2021-07-09 17:03:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20590 to 9981. [2021-07-09 17:03:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 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 17:03:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-09 17:03:23,564 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-09 17:03:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:23,564 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-09 17:03:23,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-09 17:03:23,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:23,574 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:23,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:23,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-07-09 17:03:23,574 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:23,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:23,574 INFO L82 PathProgramCache]: Analyzing trace with hash -440178842, now seen corresponding path program 284 times [2021-07-09 17:03:23,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:23,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124585868] [2021-07-09 17:03:23,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:23,917 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 17:03:23,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:23,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124585868] [2021-07-09 17:03:23,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124585868] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:23,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:23,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:23,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603639281] [2021-07-09 17:03:23,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:23,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:23,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:23,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:23,918 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:24,729 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:24,940 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:03:25,139 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:25,364 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:25,521 INFO L93 Difference]: Finished difference Result 18068 states and 47472 transitions. [2021-07-09 17:03:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:25,522 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:25,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:25,545 INFO L225 Difference]: With dead ends: 18068 [2021-07-09 17:03:25,545 INFO L226 Difference]: Without dead ends: 18068 [2021-07-09 17:03:25,546 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1450.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:25,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18068 states. [2021-07-09 17:03:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18068 to 9949. [2021-07-09 17:03:25,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 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 17:03:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-07-09 17:03:25,719 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-07-09 17:03:25,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:25,719 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-07-09 17:03:25,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-07-09 17:03:25,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:25,730 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:25,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:25,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-07-09 17:03:25,730 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:25,730 INFO L82 PathProgramCache]: Analyzing trace with hash -141778168, now seen corresponding path program 285 times [2021-07-09 17:03:25,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:25,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286899062] [2021-07-09 17:03:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:26,048 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 17:03:26,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:26,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286899062] [2021-07-09 17:03:26,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286899062] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:26,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:26,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:26,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975616496] [2021-07-09 17:03:26,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:26,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:26,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:26,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:26,049 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:26,704 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:26,860 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:27,020 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:27,194 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:27,398 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:27,576 INFO L93 Difference]: Finished difference Result 21630 states and 56520 transitions. [2021-07-09 17:03:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:27,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:27,611 INFO L225 Difference]: With dead ends: 21630 [2021-07-09 17:03:27,611 INFO L226 Difference]: Without dead ends: 21630 [2021-07-09 17:03:27,611 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1374.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2021-07-09 17:03:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 9981. [2021-07-09 17:03:27,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 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 17:03:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-09 17:03:27,876 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-09 17:03:27,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:27,877 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-09 17:03:27,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:27,877 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-09 17:03:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:27,889 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:27,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:27,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-07-09 17:03:27,889 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:27,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:27,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2067810182, now seen corresponding path program 286 times [2021-07-09 17:03:27,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:27,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856539579] [2021-07-09 17:03:27,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:28,206 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 17:03:28,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:28,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856539579] [2021-07-09 17:03:28,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856539579] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:28,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:28,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:28,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660003917] [2021-07-09 17:03:28,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:28,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:28,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:28,207 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:28,855 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:29,016 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:29,178 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:29,431 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:29,649 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:29,845 INFO L93 Difference]: Finished difference Result 22443 states and 58324 transitions. [2021-07-09 17:03:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:29,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:29,881 INFO L225 Difference]: With dead ends: 22443 [2021-07-09 17:03:29,882 INFO L226 Difference]: Without dead ends: 22443 [2021-07-09 17:03:29,882 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1435.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22443 states. [2021-07-09 17:03:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22443 to 9965. [2021-07-09 17:03:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 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 17:03:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-07-09 17:03:30,140 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-07-09 17:03:30,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:30,140 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-07-09 17:03:30,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:30,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-07-09 17:03:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:30,151 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:30,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:30,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-07-09 17:03:30,151 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:30,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:30,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1793585384, now seen corresponding path program 287 times [2021-07-09 17:03:30,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:30,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575925245] [2021-07-09 17:03:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:30,454 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 17:03:30,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:30,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575925245] [2021-07-09 17:03:30,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575925245] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:30,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:30,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:30,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170604085] [2021-07-09 17:03:30,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:30,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:30,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:30,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:30,455 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:31,236 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:31,394 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:31,577 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:31,770 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:31,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:31,938 INFO L93 Difference]: Finished difference Result 21769 states and 56737 transitions. [2021-07-09 17:03:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:31,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:31,974 INFO L225 Difference]: With dead ends: 21769 [2021-07-09 17:03:31,975 INFO L226 Difference]: Without dead ends: 21769 [2021-07-09 17:03:31,975 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21769 states. [2021-07-09 17:03:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21769 to 9981. [2021-07-09 17:03:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 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 17:03:32,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-09 17:03:32,225 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-09 17:03:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:32,225 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-09 17:03:32,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:32,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-09 17:03:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:32,238 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:32,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:32,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-07-09 17:03:32,238 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:32,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1545038404, now seen corresponding path program 288 times [2021-07-09 17:03:32,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:32,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992231677] [2021-07-09 17:03:32,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:32,530 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 17:03:32,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:32,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992231677] [2021-07-09 17:03:32,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992231677] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:32,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:32,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:32,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015971938] [2021-07-09 17:03:32,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:32,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:32,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:32,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:32,531 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:33,254 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:33,410 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:33,620 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:33,794 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:33,942 INFO L93 Difference]: Finished difference Result 18834 states and 49263 transitions. [2021-07-09 17:03:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:33,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:33,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:33,968 INFO L225 Difference]: With dead ends: 18834 [2021-07-09 17:03:33,968 INFO L226 Difference]: Without dead ends: 18834 [2021-07-09 17:03:33,968 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1255.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:34,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18834 states. [2021-07-09 17:03:34,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18834 to 9917. [2021-07-09 17:03:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 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 17:03:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-07-09 17:03:34,161 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-07-09 17:03:34,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:34,162 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-07-09 17:03:34,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-07-09 17:03:34,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:34,172 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:34,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:34,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-07-09 17:03:34,172 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:34,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:34,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1869580442, now seen corresponding path program 289 times [2021-07-09 17:03:34,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:34,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133249529] [2021-07-09 17:03:34,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:34,490 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 17:03:34,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:34,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133249529] [2021-07-09 17:03:34,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133249529] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:34,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:34,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:34,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462126155] [2021-07-09 17:03:34,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:34,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:34,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:34,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:34,491 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:35,134 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:35,291 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:35,477 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:35,683 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:35,885 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:36,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:36,055 INFO L93 Difference]: Finished difference Result 22188 states and 58050 transitions. [2021-07-09 17:03:36,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:36,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:36,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:36,095 INFO L225 Difference]: With dead ends: 22188 [2021-07-09 17:03:36,095 INFO L226 Difference]: Without dead ends: 22188 [2021-07-09 17:03:36,095 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1409.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2021-07-09 17:03:36,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 9981. [2021-07-09 17:03:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 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 17:03:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-09 17:03:36,315 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-09 17:03:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:36,315 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-09 17:03:36,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-09 17:03:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:36,326 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:36,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:36,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-07-09 17:03:36,326 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:36,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:36,326 INFO L82 PathProgramCache]: Analyzing trace with hash 340007908, now seen corresponding path program 290 times [2021-07-09 17:03:36,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:36,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094854582] [2021-07-09 17:03:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:36,649 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 17:03:36,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:36,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094854582] [2021-07-09 17:03:36,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094854582] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:36,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:36,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:36,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113481991] [2021-07-09 17:03:36,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:36,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:36,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:36,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:36,650 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:37,330 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:37,489 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:37,652 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:37,845 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:38,108 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:38,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:38,274 INFO L93 Difference]: Finished difference Result 23001 states and 59854 transitions. [2021-07-09 17:03:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:38,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:38,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:38,305 INFO L225 Difference]: With dead ends: 23001 [2021-07-09 17:03:38,305 INFO L226 Difference]: Without dead ends: 23001 [2021-07-09 17:03:38,305 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1481.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23001 states. [2021-07-09 17:03:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23001 to 9965. [2021-07-09 17:03:38,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 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 17:03:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-07-09 17:03:38,519 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-07-09 17:03:38,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:38,519 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-07-09 17:03:38,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-07-09 17:03:38,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:38,529 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:38,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:38,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-07-09 17:03:38,529 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:38,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:38,529 INFO L82 PathProgramCache]: Analyzing trace with hash 65783110, now seen corresponding path program 291 times [2021-07-09 17:03:38,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:38,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873868977] [2021-07-09 17:03:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:38,858 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 17:03:38,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:38,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873868977] [2021-07-09 17:03:38,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873868977] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:38,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:38,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:38,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109894389] [2021-07-09 17:03:38,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:38,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:38,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:38,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:38,859 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:39,678 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:39,853 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:40,052 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:40,227 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:40,427 INFO L93 Difference]: Finished difference Result 26114 states and 67804 transitions. [2021-07-09 17:03:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:40,471 INFO L225 Difference]: With dead ends: 26114 [2021-07-09 17:03:40,471 INFO L226 Difference]: Without dead ends: 26114 [2021-07-09 17:03:40,471 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:40,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26114 states. [2021-07-09 17:03:40,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26114 to 9981. [2021-07-09 17:03:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 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 17:03:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-09 17:03:40,772 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-09 17:03:40,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:40,772 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-09 17:03:40,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-09 17:03:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:40,785 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:40,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:40,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-07-09 17:03:40,785 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:40,785 INFO L82 PathProgramCache]: Analyzing trace with hash -182763870, now seen corresponding path program 292 times [2021-07-09 17:03:40,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:40,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413137800] [2021-07-09 17:03:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:41,073 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 17:03:41,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:41,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413137800] [2021-07-09 17:03:41,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413137800] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:41,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:41,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:41,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974311565] [2021-07-09 17:03:41,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:41,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:41,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:41,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:41,074 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:41,686 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:41,844 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:42,008 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:42,188 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:42,458 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:42,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:42,626 INFO L93 Difference]: Finished difference Result 23179 states and 60330 transitions. [2021-07-09 17:03:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:42,626 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:42,657 INFO L225 Difference]: With dead ends: 23179 [2021-07-09 17:03:42,657 INFO L226 Difference]: Without dead ends: 23179 [2021-07-09 17:03:42,658 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1363.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23179 states. [2021-07-09 17:03:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23179 to 9949. [2021-07-09 17:03:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 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 17:03:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-07-09 17:03:42,881 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-07-09 17:03:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:42,881 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-07-09 17:03:42,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-07-09 17:03:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:42,892 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:42,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:42,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-07-09 17:03:42,892 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:42,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:42,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1295698916, now seen corresponding path program 293 times [2021-07-09 17:03:42,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:42,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61181260] [2021-07-09 17:03:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:43,219 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 17:03:43,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:43,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61181260] [2021-07-09 17:03:43,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61181260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:43,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:43,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:43,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122772487] [2021-07-09 17:03:43,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:43,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:43,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:43,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:43,220 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:43,888 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:44,033 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:44,213 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:44,418 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:44,624 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:44,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:44,811 INFO L93 Difference]: Finished difference Result 22311 states and 58221 transitions. [2021-07-09 17:03:44,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:44,811 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:44,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:44,840 INFO L225 Difference]: With dead ends: 22311 [2021-07-09 17:03:44,841 INFO L226 Difference]: Without dead ends: 22311 [2021-07-09 17:03:44,841 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1402.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:44,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22311 states. [2021-07-09 17:03:45,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22311 to 9997. [2021-07-09 17:03:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 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 17:03:45,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-07-09 17:03:45,052 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-07-09 17:03:45,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:45,053 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-07-09 17:03:45,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:45,053 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-07-09 17:03:45,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:45,063 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:45,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:45,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-07-09 17:03:45,063 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:45,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1047151936, now seen corresponding path program 294 times [2021-07-09 17:03:45,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:45,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415455946] [2021-07-09 17:03:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:45,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:45,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415455946] [2021-07-09 17:03:45,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415455946] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:45,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:45,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:45,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467467658] [2021-07-09 17:03:45,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:45,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:45,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:45,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:45,388 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:46,049 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:46,197 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:46,376 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:46,559 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:46,821 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:46,976 INFO L93 Difference]: Finished difference Result 22151 states and 57819 transitions. [2021-07-09 17:03:46,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:46,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:46,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:47,006 INFO L225 Difference]: With dead ends: 22151 [2021-07-09 17:03:47,006 INFO L226 Difference]: Without dead ends: 22151 [2021-07-09 17:03:47,006 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1458.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22151 states. [2021-07-09 17:03:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22151 to 9981. [2021-07-09 17:03:47,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 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 17:03:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-09 17:03:47,220 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-09 17:03:47,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:47,221 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-09 17:03:47,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:47,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-09 17:03:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:47,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:47,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:47,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-07-09 17:03:47,232 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash -109665368, now seen corresponding path program 295 times [2021-07-09 17:03:47,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:47,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350386111] [2021-07-09 17:03:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:47,551 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 17:03:47,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:47,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350386111] [2021-07-09 17:03:47,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350386111] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:47,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:47,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:47,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464637624] [2021-07-09 17:03:47,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:47,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:47,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:47,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:47,552 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:48,197 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:48,345 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:48,499 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:03:48,693 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:48,901 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:49,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:49,048 INFO L93 Difference]: Finished difference Result 19302 states and 50559 transitions. [2021-07-09 17:03:49,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:49,048 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:49,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:49,074 INFO L225 Difference]: With dead ends: 19302 [2021-07-09 17:03:49,074 INFO L226 Difference]: Without dead ends: 19302 [2021-07-09 17:03:49,075 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19302 states. [2021-07-09 17:03:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19302 to 9853. [2021-07-09 17:03:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9853 states, 9851 states have (on average 2.688458024566034) internal successors, (26484), 9852 states have internal predecessors, (26484), 0 states have call successors, (0), 0 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 17:03:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9853 states to 9853 states and 26484 transitions. [2021-07-09 17:03:49,264 INFO L78 Accepts]: Start accepts. Automaton has 9853 states and 26484 transitions. Word has length 114 [2021-07-09 17:03:49,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:49,264 INFO L482 AbstractCegarLoop]: Abstraction has 9853 states and 26484 transitions. [2021-07-09 17:03:49,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 9853 states and 26484 transitions. [2021-07-09 17:03:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:49,273 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:49,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:49,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-07-09 17:03:49,274 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:49,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:49,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1545760922, now seen corresponding path program 296 times [2021-07-09 17:03:49,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:49,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36217077] [2021-07-09 17:03:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:49,592 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 17:03:49,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:49,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36217077] [2021-07-09 17:03:49,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36217077] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:49,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:49,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:49,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720023155] [2021-07-09 17:03:49,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:49,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:49,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:49,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:49,593 INFO L87 Difference]: Start difference. First operand 9853 states and 26484 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:50,249 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:50,426 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:50,604 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:50,787 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:50,989 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:51,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:51,234 INFO L93 Difference]: Finished difference Result 17286 states and 45418 transitions. [2021-07-09 17:03:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:51,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:51,257 INFO L225 Difference]: With dead ends: 17286 [2021-07-09 17:03:51,258 INFO L226 Difference]: Without dead ends: 17286 [2021-07-09 17:03:51,258 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1395.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:51,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17286 states. [2021-07-09 17:03:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17286 to 9933. [2021-07-09 17:03:51,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 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 17:03:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-09 17:03:51,429 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-09 17:03:51,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:51,429 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-09 17:03:51,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:51,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-09 17:03:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:51,439 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:51,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:51,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-07-09 17:03:51,440 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:51,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:51,440 INFO L82 PathProgramCache]: Analyzing trace with hash 663827428, now seen corresponding path program 297 times [2021-07-09 17:03:51,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:51,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590024334] [2021-07-09 17:03:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:51,759 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 17:03:51,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:51,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590024334] [2021-07-09 17:03:51,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590024334] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:51,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:51,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:51,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688840034] [2021-07-09 17:03:51,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:51,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:51,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:51,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:51,761 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:52,442 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:52,605 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:52,769 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:52,977 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:53,180 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:53,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:53,351 INFO L93 Difference]: Finished difference Result 18099 states and 47222 transitions. [2021-07-09 17:03:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:53,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:53,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:53,384 INFO L225 Difference]: With dead ends: 18099 [2021-07-09 17:03:53,384 INFO L226 Difference]: Without dead ends: 18099 [2021-07-09 17:03:53,385 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1407.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:53,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18099 states. [2021-07-09 17:03:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18099 to 9917. [2021-07-09 17:03:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 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 17:03:53,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-07-09 17:03:53,582 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-07-09 17:03:53,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:53,583 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-07-09 17:03:53,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:53,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-07-09 17:03:53,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:53,593 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:53,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:53,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-07-09 17:03:53,593 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:53,593 INFO L82 PathProgramCache]: Analyzing trace with hash 389602630, now seen corresponding path program 298 times [2021-07-09 17:03:53,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:53,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515247257] [2021-07-09 17:03:53,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:53,935 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 17:03:53,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:53,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515247257] [2021-07-09 17:03:53,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515247257] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:53,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:53,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:53,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161285264] [2021-07-09 17:03:53,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:53,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:53,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:53,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:53,936 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:54,568 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:54,726 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:54,890 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:55,079 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:55,277 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:55,439 INFO L93 Difference]: Finished difference Result 21212 states and 55172 transitions. [2021-07-09 17:03:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:55,468 INFO L225 Difference]: With dead ends: 21212 [2021-07-09 17:03:55,468 INFO L226 Difference]: Without dead ends: 21212 [2021-07-09 17:03:55,468 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1401.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21212 states. [2021-07-09 17:03:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21212 to 9933. [2021-07-09 17:03:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 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 17:03:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-09 17:03:55,764 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-09 17:03:55,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:55,765 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-09 17:03:55,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-09 17:03:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:55,775 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:55,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:55,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-07-09 17:03:55,775 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:55,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:55,775 INFO L82 PathProgramCache]: Analyzing trace with hash 141055650, now seen corresponding path program 299 times [2021-07-09 17:03:55,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:55,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567921736] [2021-07-09 17:03:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:56,089 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 17:03:56,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:56,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567921736] [2021-07-09 17:03:56,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567921736] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:56,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:56,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:56,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506522254] [2021-07-09 17:03:56,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:56,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:56,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:56,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:56,091 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:56,747 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:56,900 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:03:57,064 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:57,239 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:03:57,442 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:03:57,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:57,587 INFO L93 Difference]: Finished difference Result 18277 states and 47698 transitions. [2021-07-09 17:03:57,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:57,587 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:57,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:57,612 INFO L225 Difference]: With dead ends: 18277 [2021-07-09 17:03:57,612 INFO L226 Difference]: Without dead ends: 18277 [2021-07-09 17:03:57,612 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1379.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:57,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18277 states. [2021-07-09 17:03:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18277 to 9901. [2021-07-09 17:03:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9899 states have (on average 2.689362561874937) internal successors, (26622), 9900 states have internal predecessors, (26622), 0 states have call successors, (0), 0 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 17:03:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 26622 transitions. [2021-07-09 17:03:57,791 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 26622 transitions. Word has length 114 [2021-07-09 17:03:57,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:57,792 INFO L482 AbstractCegarLoop]: Abstraction has 9901 states and 26622 transitions. [2021-07-09 17:03:57,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 26622 transitions. [2021-07-09 17:03:57,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:57,802 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:57,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:57,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-07-09 17:03:57,802 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:57,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:57,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1619518436, now seen corresponding path program 300 times [2021-07-09 17:03:57,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:57,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707451174] [2021-07-09 17:03:57,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:58,128 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 17:03:58,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:58,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707451174] [2021-07-09 17:03:58,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707451174] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:58,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:58,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:03:58,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541742024] [2021-07-09 17:03:58,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:03:58,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:58,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:03:58,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:03:58,129 INFO L87 Difference]: Start difference. First operand 9901 states and 26622 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:58,777 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:03:58,923 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:03:59,102 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:03:59,290 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:03:59,490 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:03:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:59,655 INFO L93 Difference]: Finished difference Result 21722 states and 56564 transitions. [2021-07-09 17:03:59,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:03:59,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:03:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:59,685 INFO L225 Difference]: With dead ends: 21722 [2021-07-09 17:03:59,685 INFO L226 Difference]: Without dead ends: 21722 [2021-07-09 17:03:59,685 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1402.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:03:59,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21722 states. [2021-07-09 17:03:59,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21722 to 9949. [2021-07-09 17:03:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 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 17:03:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-07-09 17:03:59,982 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-07-09 17:03:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:59,982 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-07-09 17:03:59,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:03:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-07-09 17:03:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:03:59,992 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:59,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:59,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-07-09 17:03:59,993 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:59,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:59,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1370971456, now seen corresponding path program 301 times [2021-07-09 17:03:59,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:59,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050721965] [2021-07-09 17:03:59,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:00,315 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 17:04:00,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:00,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050721965] [2021-07-09 17:04:00,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050721965] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:00,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:00,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:00,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936236098] [2021-07-09 17:04:00,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:00,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:00,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:00,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:00,317 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:00,971 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:01,130 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:01,310 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:01,494 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:01,700 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:01,867 INFO L93 Difference]: Finished difference Result 21562 states and 56162 transitions. [2021-07-09 17:04:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:01,896 INFO L225 Difference]: With dead ends: 21562 [2021-07-09 17:04:01,896 INFO L226 Difference]: Without dead ends: 21562 [2021-07-09 17:04:01,896 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1387.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21562 states. [2021-07-09 17:04:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21562 to 9933. [2021-07-09 17:04:02,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 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 17:04:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-09 17:04:02,099 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-09 17:04:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:02,099 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-09 17:04:02,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:02,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-09 17:04:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:02,110 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:02,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:02,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-07-09 17:04:02,110 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:02,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:02,110 INFO L82 PathProgramCache]: Analyzing trace with hash 214154152, now seen corresponding path program 302 times [2021-07-09 17:04:02,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:02,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218160605] [2021-07-09 17:04:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:02,445 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 17:04:02,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:02,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218160605] [2021-07-09 17:04:02,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218160605] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:02,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:02,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:02,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878422195] [2021-07-09 17:04:02,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:02,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:02,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:02,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:02,446 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:03,094 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:03,243 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:03,404 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:04:03,615 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:03,816 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:03,961 INFO L93 Difference]: Finished difference Result 18713 states and 48902 transitions. [2021-07-09 17:04:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:03,961 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:03,986 INFO L225 Difference]: With dead ends: 18713 [2021-07-09 17:04:03,986 INFO L226 Difference]: Without dead ends: 18713 [2021-07-09 17:04:03,987 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1398.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:04,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18713 states. [2021-07-09 17:04:04,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18713 to 9869. [2021-07-09 17:04:04,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9869 states, 9867 states have (on average 2.6887605148474716) internal successors, (26530), 9868 states have internal predecessors, (26530), 0 states have call successors, (0), 0 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 17:04:04,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9869 states to 9869 states and 26530 transitions. [2021-07-09 17:04:04,277 INFO L78 Accepts]: Start accepts. Automaton has 9869 states and 26530 transitions. Word has length 114 [2021-07-09 17:04:04,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:04,277 INFO L482 AbstractCegarLoop]: Abstraction has 9869 states and 26530 transitions. [2021-07-09 17:04:04,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9869 states and 26530 transitions. [2021-07-09 17:04:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:04,286 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:04,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:04,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-07-09 17:04:04,287 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:04,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:04,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1112515556, now seen corresponding path program 303 times [2021-07-09 17:04:04,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:04,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283786810] [2021-07-09 17:04:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:04,640 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 17:04:04,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:04,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283786810] [2021-07-09 17:04:04,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283786810] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:04,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:04,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:04,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695256362] [2021-07-09 17:04:04,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:04,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:04,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:04,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:04,641 INFO L87 Difference]: Start difference. First operand 9869 states and 26530 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:05,287 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:04:05,442 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:05,628 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:05,824 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:06,027 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:06,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:06,197 INFO L93 Difference]: Finished difference Result 17377 states and 45497 transitions. [2021-07-09 17:04:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:06,197 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:06,221 INFO L225 Difference]: With dead ends: 17377 [2021-07-09 17:04:06,222 INFO L226 Difference]: Without dead ends: 17377 [2021-07-09 17:04:06,222 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1417.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2021-07-09 17:04:06,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 9933. [2021-07-09 17:04:06,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 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 17:04:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-09 17:04:06,403 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-09 17:04:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:06,403 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-09 17:04:06,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:06,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-09 17:04:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:06,414 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:06,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:06,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-07-09 17:04:06,415 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:06,415 INFO L82 PathProgramCache]: Analyzing trace with hash 863968576, now seen corresponding path program 304 times [2021-07-09 17:04:06,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:06,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045956636] [2021-07-09 17:04:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:06,764 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 17:04:06,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:06,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045956636] [2021-07-09 17:04:06,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045956636] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:06,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:06,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:06,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854018259] [2021-07-09 17:04:06,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:06,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:06,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:06,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:06,765 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:07,457 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:04:07,603 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:07,781 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:07,965 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:08,174 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:08,328 INFO L93 Difference]: Finished difference Result 17217 states and 45095 transitions. [2021-07-09 17:04:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:08,329 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:08,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:08,352 INFO L225 Difference]: With dead ends: 17217 [2021-07-09 17:04:08,352 INFO L226 Difference]: Without dead ends: 17217 [2021-07-09 17:04:08,352 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1423.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:08,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17217 states. [2021-07-09 17:04:08,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17217 to 9917. [2021-07-09 17:04:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 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 17:04:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-07-09 17:04:08,517 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-07-09 17:04:08,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:08,517 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-07-09 17:04:08,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-07-09 17:04:08,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:08,527 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:08,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:08,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-07-09 17:04:08,527 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:08,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:08,527 INFO L82 PathProgramCache]: Analyzing trace with hash -292848728, now seen corresponding path program 305 times [2021-07-09 17:04:08,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:08,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819508961] [2021-07-09 17:04:08,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:08,973 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 17:04:08,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:08,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819508961] [2021-07-09 17:04:08,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819508961] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:08,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:08,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:08,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130724574] [2021-07-09 17:04:08,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:08,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:08,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:08,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:08,974 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:09,610 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:04:09,764 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:09,915 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:04:10,110 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:10,316 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:10,460 INFO L93 Difference]: Finished difference Result 17505 states and 45923 transitions. [2021-07-09 17:04:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:10,461 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:10,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:10,484 INFO L225 Difference]: With dead ends: 17505 [2021-07-09 17:04:10,484 INFO L226 Difference]: Without dead ends: 17505 [2021-07-09 17:04:10,485 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1393.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:10,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17505 states. [2021-07-09 17:04:10,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17505 to 9885. [2021-07-09 17:04:10,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9885 states, 9883 states have (on average 2.6890620257006983) internal successors, (26576), 9884 states have internal predecessors, (26576), 0 states have call successors, (0), 0 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 17:04:10,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 26576 transitions. [2021-07-09 17:04:10,651 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 26576 transitions. Word has length 114 [2021-07-09 17:04:10,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:10,651 INFO L482 AbstractCegarLoop]: Abstraction has 9885 states and 26576 transitions. [2021-07-09 17:04:10,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 26576 transitions. [2021-07-09 17:04:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:10,662 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:10,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:10,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-07-09 17:04:10,662 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:10,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1415334410, now seen corresponding path program 306 times [2021-07-09 17:04:10,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:10,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125873997] [2021-07-09 17:04:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:11,008 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 17:04:11,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:11,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125873997] [2021-07-09 17:04:11,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125873997] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:11,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:11,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:11,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873612345] [2021-07-09 17:04:11,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:11,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:11,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:11,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:11,009 INFO L87 Difference]: Start difference. First operand 9885 states and 26576 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:11,684 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:04:11,824 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:04:11,972 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:04:12,169 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:12,379 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:12,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:12,519 INFO L93 Difference]: Finished difference Result 14220 states and 37459 transitions. [2021-07-09 17:04:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:12,541 INFO L225 Difference]: With dead ends: 14220 [2021-07-09 17:04:12,541 INFO L226 Difference]: Without dead ends: 14220 [2021-07-09 17:04:12,541 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1393.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14220 states. [2021-07-09 17:04:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14220 to 9805. [2021-07-09 17:04:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9803 states have (on average 2.6875446291951444) internal successors, (26346), 9804 states have internal predecessors, (26346), 0 states have call successors, (0), 0 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 17:04:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 26346 transitions. [2021-07-09 17:04:12,699 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 26346 transitions. Word has length 114 [2021-07-09 17:04:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:12,699 INFO L482 AbstractCegarLoop]: Abstraction has 9805 states and 26346 transitions. [2021-07-09 17:04:12,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 26346 transitions. [2021-07-09 17:04:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:12,709 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:12,709 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:12,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-07-09 17:04:12,709 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:12,709 INFO L82 PathProgramCache]: Analyzing trace with hash -352295476, now seen corresponding path program 307 times [2021-07-09 17:04:12,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:12,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333521410] [2021-07-09 17:04:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:13,041 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 17:04:13,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:13,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333521410] [2021-07-09 17:04:13,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333521410] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:13,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:13,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:13,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580052994] [2021-07-09 17:04:13,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:13,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:13,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:13,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:13,042 INFO L87 Difference]: Start difference. First operand 9805 states and 26346 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:13,750 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:13,895 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:14,067 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:14,241 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:14,443 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:14,579 INFO L93 Difference]: Finished difference Result 14911 states and 39526 transitions. [2021-07-09 17:04:14,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:14,600 INFO L225 Difference]: With dead ends: 14911 [2021-07-09 17:04:14,600 INFO L226 Difference]: Without dead ends: 14911 [2021-07-09 17:04:14,600 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1394.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14911 states. [2021-07-09 17:04:14,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14911 to 9821. [2021-07-09 17:04:14,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9819 states have (on average 2.68785008656686) internal successors, (26392), 9820 states have internal predecessors, (26392), 0 states have call successors, (0), 0 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 17:04:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 26392 transitions. [2021-07-09 17:04:14,757 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 26392 transitions. Word has length 114 [2021-07-09 17:04:14,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:14,757 INFO L482 AbstractCegarLoop]: Abstraction has 9821 states and 26392 transitions. [2021-07-09 17:04:14,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:14,758 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 26392 transitions. [2021-07-09 17:04:14,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:14,767 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:14,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:14,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-07-09 17:04:14,767 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:14,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1857292874, now seen corresponding path program 308 times [2021-07-09 17:04:14,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:14,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892537517] [2021-07-09 17:04:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:15,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:15,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892537517] [2021-07-09 17:04:15,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892537517] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:15,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:15,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:15,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477013288] [2021-07-09 17:04:15,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:15,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:15,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:15,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:15,099 INFO L87 Difference]: Start difference. First operand 9821 states and 26392 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:15,748 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:15,897 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:16,073 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:16,252 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:16,424 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:16,574 INFO L93 Difference]: Finished difference Result 14489 states and 38012 transitions. [2021-07-09 17:04:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:16,574 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:16,605 INFO L225 Difference]: With dead ends: 14489 [2021-07-09 17:04:16,606 INFO L226 Difference]: Without dead ends: 14489 [2021-07-09 17:04:16,606 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14489 states. [2021-07-09 17:04:16,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14489 to 9805. [2021-07-09 17:04:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9803 states have (on average 2.6875446291951444) internal successors, (26346), 9804 states have internal predecessors, (26346), 0 states have call successors, (0), 0 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 17:04:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 26346 transitions. [2021-07-09 17:04:16,790 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 26346 transitions. Word has length 114 [2021-07-09 17:04:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:16,790 INFO L482 AbstractCegarLoop]: Abstraction has 9805 states and 26346 transitions. [2021-07-09 17:04:16,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 26346 transitions. [2021-07-09 17:04:16,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:16,802 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:16,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:16,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-07-09 17:04:16,802 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:16,802 INFO L82 PathProgramCache]: Analyzing trace with hash 218179500, now seen corresponding path program 309 times [2021-07-09 17:04:16,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:16,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420694439] [2021-07-09 17:04:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:17,123 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 17:04:17,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:17,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420694439] [2021-07-09 17:04:17,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420694439] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:17,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:17,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:17,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020305304] [2021-07-09 17:04:17,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:17,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:17,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:17,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:17,124 INFO L87 Difference]: Start difference. First operand 9805 states and 26346 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:17,824 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:17,973 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:18,127 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:04:18,318 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:18,523 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:18,660 INFO L93 Difference]: Finished difference Result 11967 states and 31505 transitions. [2021-07-09 17:04:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:18,676 INFO L225 Difference]: With dead ends: 11967 [2021-07-09 17:04:18,676 INFO L226 Difference]: Without dead ends: 11967 [2021-07-09 17:04:18,676 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1410.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11967 states. [2021-07-09 17:04:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11967 to 9597. [2021-07-09 17:04:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 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 17:04:18,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-07-09 17:04:18,819 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-07-09 17:04:18,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:18,819 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-07-09 17:04:18,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:18,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-07-09 17:04:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:18,829 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:18,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:18,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-07-09 17:04:18,829 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:18,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:18,829 INFO L82 PathProgramCache]: Analyzing trace with hash 516580174, now seen corresponding path program 310 times [2021-07-09 17:04:18,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:18,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474498212] [2021-07-09 17:04:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:19,130 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 17:04:19,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:19,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474498212] [2021-07-09 17:04:19,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474498212] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:19,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:19,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:19,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436128841] [2021-07-09 17:04:19,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:19,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:19,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:19,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:19,131 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:20,109 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:20,321 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:20,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:20,507 INFO L93 Difference]: Finished difference Result 15529 states and 40553 transitions. [2021-07-09 17:04:20,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:20,507 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:20,533 INFO L225 Difference]: With dead ends: 15529 [2021-07-09 17:04:20,533 INFO L226 Difference]: Without dead ends: 15529 [2021-07-09 17:04:20,533 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1209.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2021-07-09 17:04:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 9629. [2021-07-09 17:04:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 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 17:04:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-09 17:04:20,713 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-09 17:04:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:20,714 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-09 17:04:20,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-09 17:04:20,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:20,723 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:20,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:20,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-07-09 17:04:20,724 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:20,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:20,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1568798772, now seen corresponding path program 311 times [2021-07-09 17:04:20,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:20,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171581019] [2021-07-09 17:04:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:21,043 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 17:04:21,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:21,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171581019] [2021-07-09 17:04:21,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171581019] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:21,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:21,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:21,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844827536] [2021-07-09 17:04:21,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:21,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:21,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:21,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:21,044 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:21,676 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:21,845 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:22,017 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:22,230 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:22,506 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:22,662 INFO L93 Difference]: Finished difference Result 16342 states and 42357 transitions. [2021-07-09 17:04:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:22,663 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:22,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:22,685 INFO L225 Difference]: With dead ends: 16342 [2021-07-09 17:04:22,685 INFO L226 Difference]: Without dead ends: 16342 [2021-07-09 17:04:22,685 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1504.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2021-07-09 17:04:22,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 9613. [2021-07-09 17:04:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 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 17:04:22,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-07-09 17:04:22,855 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-07-09 17:04:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:22,855 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-07-09 17:04:22,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-07-09 17:04:22,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:22,865 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:22,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:22,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-07-09 17:04:22,866 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:22,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:22,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1843023570, now seen corresponding path program 312 times [2021-07-09 17:04:22,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:22,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52476539] [2021-07-09 17:04:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:23,194 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 17:04:23,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:23,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52476539] [2021-07-09 17:04:23,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52476539] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:23,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:23,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:23,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847754602] [2021-07-09 17:04:23,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:23,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:23,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:23,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:23,195 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:23,907 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:24,045 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:24,234 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:24,421 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:24,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:24,560 INFO L93 Difference]: Finished difference Result 15668 states and 40770 transitions. [2021-07-09 17:04:24,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:24,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:24,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:24,586 INFO L225 Difference]: With dead ends: 15668 [2021-07-09 17:04:24,586 INFO L226 Difference]: Without dead ends: 15668 [2021-07-09 17:04:24,586 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1288.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:24,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2021-07-09 17:04:24,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 9629. [2021-07-09 17:04:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 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 17:04:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-09 17:04:24,785 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-09 17:04:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:24,785 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-09 17:04:24,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-09 17:04:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:24,797 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:24,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:24,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-07-09 17:04:24,797 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:24,797 INFO L82 PathProgramCache]: Analyzing trace with hash -2091570550, now seen corresponding path program 313 times [2021-07-09 17:04:24,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:24,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588203863] [2021-07-09 17:04:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:25,104 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 17:04:25,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:25,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588203863] [2021-07-09 17:04:25,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588203863] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:25,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:25,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:25,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037710013] [2021-07-09 17:04:25,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:25,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:25,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:25,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:25,105 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:25,880 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:26,043 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:26,227 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:26,439 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:26,557 INFO L93 Difference]: Finished difference Result 12733 states and 33296 transitions. [2021-07-09 17:04:26,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:26,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:26,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:26,573 INFO L225 Difference]: With dead ends: 12733 [2021-07-09 17:04:26,573 INFO L226 Difference]: Without dead ends: 12733 [2021-07-09 17:04:26,574 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12733 states. [2021-07-09 17:04:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12733 to 9565. [2021-07-09 17:04:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 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 17:04:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-07-09 17:04:26,784 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-07-09 17:04:26,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:26,784 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-07-09 17:04:26,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-07-09 17:04:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:26,794 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:26,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:26,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-07-09 17:04:26,794 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:26,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:26,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1211222100, now seen corresponding path program 314 times [2021-07-09 17:04:26,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:26,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217644894] [2021-07-09 17:04:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:27,106 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 17:04:27,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:27,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217644894] [2021-07-09 17:04:27,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217644894] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:27,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:27,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:27,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971949251] [2021-07-09 17:04:27,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:27,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:27,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:27,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:27,107 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:27,742 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:27,896 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:28,058 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:28,235 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:28,443 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:28,593 INFO L93 Difference]: Finished difference Result 16087 states and 42083 transitions. [2021-07-09 17:04:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:28,615 INFO L225 Difference]: With dead ends: 16087 [2021-07-09 17:04:28,616 INFO L226 Difference]: Without dead ends: 16087 [2021-07-09 17:04:28,616 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1372.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16087 states. [2021-07-09 17:04:28,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16087 to 9629. [2021-07-09 17:04:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 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 17:04:28,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-09 17:04:28,794 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-09 17:04:28,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:28,794 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-09 17:04:28,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-09 17:04:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:28,804 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:28,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:28,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-07-09 17:04:28,804 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:28,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:28,804 INFO L82 PathProgramCache]: Analyzing trace with hash 998366250, now seen corresponding path program 315 times [2021-07-09 17:04:28,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:28,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526464934] [2021-07-09 17:04:28,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:29,118 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 17:04:29,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:29,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526464934] [2021-07-09 17:04:29,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526464934] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:29,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:29,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:29,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514466533] [2021-07-09 17:04:29,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:29,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:29,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:29,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:29,119 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:29,778 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:29,944 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:30,106 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:30,300 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:30,498 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:30,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:30,666 INFO L93 Difference]: Finished difference Result 16900 states and 43887 transitions. [2021-07-09 17:04:30,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:30,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:30,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:30,688 INFO L225 Difference]: With dead ends: 16900 [2021-07-09 17:04:30,688 INFO L226 Difference]: Without dead ends: 16900 [2021-07-09 17:04:30,688 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1378.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:30,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16900 states. [2021-07-09 17:04:30,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16900 to 9613. [2021-07-09 17:04:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 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 17:04:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-07-09 17:04:30,857 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-07-09 17:04:30,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:30,857 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-07-09 17:04:30,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:30,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-07-09 17:04:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:30,867 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:30,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:30,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-07-09 17:04:30,867 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:30,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:30,867 INFO L82 PathProgramCache]: Analyzing trace with hash 724141452, now seen corresponding path program 316 times [2021-07-09 17:04:30,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:30,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470598940] [2021-07-09 17:04:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:31,287 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 17:04:31,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:31,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470598940] [2021-07-09 17:04:31,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470598940] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:31,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:31,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:31,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202124979] [2021-07-09 17:04:31,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:31,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:31,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:31,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:31,288 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:32,089 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:32,252 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:32,443 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:32,644 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:32,823 INFO L93 Difference]: Finished difference Result 20013 states and 51837 transitions. [2021-07-09 17:04:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:32,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:32,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:32,852 INFO L225 Difference]: With dead ends: 20013 [2021-07-09 17:04:32,852 INFO L226 Difference]: Without dead ends: 20013 [2021-07-09 17:04:32,853 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20013 states. [2021-07-09 17:04:33,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20013 to 9629. [2021-07-09 17:04:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 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 17:04:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-09 17:04:33,040 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-09 17:04:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:33,041 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-09 17:04:33,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-09 17:04:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:33,051 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:33,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:33,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-07-09 17:04:33,051 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:33,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:33,051 INFO L82 PathProgramCache]: Analyzing trace with hash 475594472, now seen corresponding path program 317 times [2021-07-09 17:04:33,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:33,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411637993] [2021-07-09 17:04:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:33,329 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 17:04:33,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:33,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411637993] [2021-07-09 17:04:33,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411637993] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:33,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:33,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:33,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321630127] [2021-07-09 17:04:33,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:33,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:33,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:33,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:33,330 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:34,038 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:34,211 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:34,408 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:34,627 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:34,780 INFO L93 Difference]: Finished difference Result 17078 states and 44363 transitions. [2021-07-09 17:04:34,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:34,780 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:34,802 INFO L225 Difference]: With dead ends: 17078 [2021-07-09 17:04:34,802 INFO L226 Difference]: Without dead ends: 17078 [2021-07-09 17:04:34,802 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1289.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17078 states. [2021-07-09 17:04:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17078 to 9597. [2021-07-09 17:04:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 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 17:04:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-07-09 17:04:34,981 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-07-09 17:04:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:34,981 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-07-09 17:04:34,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-07-09 17:04:34,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:34,992 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:34,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:34,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-07-09 17:04:34,992 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:34,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1954057258, now seen corresponding path program 318 times [2021-07-09 17:04:34,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:34,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317469878] [2021-07-09 17:04:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:35,225 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-07-09 17:04:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:35,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:35,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317469878] [2021-07-09 17:04:35,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317469878] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:35,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:35,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:35,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394319938] [2021-07-09 17:04:35,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:35,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:35,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:35,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:35,424 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:36,068 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:36,215 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:36,390 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:36,578 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:36,778 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:36,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:36,939 INFO L93 Difference]: Finished difference Result 16210 states and 42254 transitions. [2021-07-09 17:04:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:36,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:36,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:36,967 INFO L225 Difference]: With dead ends: 16210 [2021-07-09 17:04:36,967 INFO L226 Difference]: Without dead ends: 16210 [2021-07-09 17:04:36,967 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1501.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:36,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16210 states. [2021-07-09 17:04:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16210 to 9645. [2021-07-09 17:04:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 9643 states have (on average 2.683812091672716) internal successors, (25880), 9644 states have internal predecessors, (25880), 0 states have call successors, (0), 0 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 17:04:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 25880 transitions. [2021-07-09 17:04:37,154 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 25880 transitions. Word has length 114 [2021-07-09 17:04:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:37,154 INFO L482 AbstractCegarLoop]: Abstraction has 9645 states and 25880 transitions. [2021-07-09 17:04:37,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 25880 transitions. [2021-07-09 17:04:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:37,164 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:37,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:37,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-07-09 17:04:37,165 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:37,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1705510278, now seen corresponding path program 319 times [2021-07-09 17:04:37,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:37,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771160300] [2021-07-09 17:04:37,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:37,488 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 17:04:37,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:37,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771160300] [2021-07-09 17:04:37,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771160300] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:37,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:37,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:37,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178907037] [2021-07-09 17:04:37,489 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:37,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:37,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:37,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:37,489 INFO L87 Difference]: Start difference. First operand 9645 states and 25880 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:38,135 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:38,279 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:38,454 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:38,629 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:38,835 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:38,970 INFO L93 Difference]: Finished difference Result 16050 states and 41852 transitions. [2021-07-09 17:04:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:38,970 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:38,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:38,993 INFO L225 Difference]: With dead ends: 16050 [2021-07-09 17:04:38,993 INFO L226 Difference]: Without dead ends: 16050 [2021-07-09 17:04:38,994 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1383.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16050 states. [2021-07-09 17:04:39,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16050 to 9629. [2021-07-09 17:04:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 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 17:04:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-09 17:04:39,162 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-09 17:04:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:39,162 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-09 17:04:39,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-09 17:04:39,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:39,172 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:39,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:39,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-07-09 17:04:39,172 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:39,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:39,172 INFO L82 PathProgramCache]: Analyzing trace with hash 548692974, now seen corresponding path program 320 times [2021-07-09 17:04:39,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:39,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037838155] [2021-07-09 17:04:39,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:39,501 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 17:04:39,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:39,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037838155] [2021-07-09 17:04:39,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037838155] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:39,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:39,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:39,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410795918] [2021-07-09 17:04:39,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:39,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:39,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:39,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:39,502 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:39,868 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-07-09 17:04:40,206 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:40,352 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:40,505 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:04:40,694 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:40,897 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:41,019 INFO L93 Difference]: Finished difference Result 13201 states and 34592 transitions. [2021-07-09 17:04:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:41,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:41,039 INFO L225 Difference]: With dead ends: 13201 [2021-07-09 17:04:41,040 INFO L226 Difference]: Without dead ends: 13201 [2021-07-09 17:04:41,040 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1433.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13201 states. [2021-07-09 17:04:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13201 to 9501. [2021-07-09 17:04:41,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9501 states, 9499 states have (on average 2.680913780397937) internal successors, (25466), 9500 states have internal predecessors, (25466), 0 states have call successors, (0), 0 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 17:04:41,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9501 states to 9501 states and 25466 transitions. [2021-07-09 17:04:41,187 INFO L78 Accepts]: Start accepts. Automaton has 9501 states and 25466 transitions. Word has length 114 [2021-07-09 17:04:41,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:41,187 INFO L482 AbstractCegarLoop]: Abstraction has 9501 states and 25466 transitions. [2021-07-09 17:04:41,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9501 states and 25466 transitions. [2021-07-09 17:04:41,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:41,197 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:41,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:41,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-07-09 17:04:41,197 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:41,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:41,197 INFO L82 PathProgramCache]: Analyzing trace with hash -887402580, now seen corresponding path program 321 times [2021-07-09 17:04:41,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:41,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131312184] [2021-07-09 17:04:41,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:41,520 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 17:04:41,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:41,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131312184] [2021-07-09 17:04:41,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131312184] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:41,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:41,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:41,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895999760] [2021-07-09 17:04:41,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:41,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:41,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:41,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:41,522 INFO L87 Difference]: Start difference. First operand 9501 states and 25466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:42,173 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:42,338 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:42,504 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:42,687 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:42,894 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:43,054 INFO L93 Difference]: Finished difference Result 16645 states and 43613 transitions. [2021-07-09 17:04:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:43,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:43,077 INFO L225 Difference]: With dead ends: 16645 [2021-07-09 17:04:43,077 INFO L226 Difference]: Without dead ends: 16645 [2021-07-09 17:04:43,077 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1385.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16645 states. [2021-07-09 17:04:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16645 to 9581. [2021-07-09 17:04:43,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 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 17:04:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-07-09 17:04:43,248 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-07-09 17:04:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:43,248 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-07-09 17:04:43,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-07-09 17:04:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:43,258 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:43,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:43,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-07-09 17:04:43,258 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:43,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1322185770, now seen corresponding path program 322 times [2021-07-09 17:04:43,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:43,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291558381] [2021-07-09 17:04:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:43,594 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 17:04:43,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:43,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291558381] [2021-07-09 17:04:43,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291558381] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:43,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:43,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:43,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635214143] [2021-07-09 17:04:43,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:43,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:43,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:43,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:43,595 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:44,260 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:44,428 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:44,645 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:44,839 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:45,039 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:45,201 INFO L93 Difference]: Finished difference Result 17458 states and 45417 transitions. [2021-07-09 17:04:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:45,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:45,223 INFO L225 Difference]: With dead ends: 17458 [2021-07-09 17:04:45,224 INFO L226 Difference]: Without dead ends: 17458 [2021-07-09 17:04:45,224 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1472.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17458 states. [2021-07-09 17:04:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17458 to 9565. [2021-07-09 17:04:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 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 17:04:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-07-09 17:04:45,395 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-07-09 17:04:45,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:45,395 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-07-09 17:04:45,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-07-09 17:04:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:45,405 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:45,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:45,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-07-09 17:04:45,405 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:45,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:45,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1047960972, now seen corresponding path program 323 times [2021-07-09 17:04:45,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:45,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683445423] [2021-07-09 17:04:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:45,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:45,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683445423] [2021-07-09 17:04:45,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683445423] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:45,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:45,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:45,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338579417] [2021-07-09 17:04:45,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:45,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:45,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:45,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:45,723 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:46,345 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:46,500 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:46,664 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:46,850 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:47,045 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:47,203 INFO L93 Difference]: Finished difference Result 20571 states and 53367 transitions. [2021-07-09 17:04:47,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:47,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:47,232 INFO L225 Difference]: With dead ends: 20571 [2021-07-09 17:04:47,232 INFO L226 Difference]: Without dead ends: 20571 [2021-07-09 17:04:47,233 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20571 states. [2021-07-09 17:04:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20571 to 9581. [2021-07-09 17:04:47,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 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 17:04:47,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-07-09 17:04:47,434 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-07-09 17:04:47,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:47,434 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-07-09 17:04:47,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-07-09 17:04:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:47,444 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:47,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:47,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-07-09 17:04:47,444 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:47,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:47,445 INFO L82 PathProgramCache]: Analyzing trace with hash 799413992, now seen corresponding path program 324 times [2021-07-09 17:04:47,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:47,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535828135] [2021-07-09 17:04:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:47,753 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 17:04:47,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:47,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535828135] [2021-07-09 17:04:47,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535828135] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:47,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:47,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:47,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399242271] [2021-07-09 17:04:47,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:47,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:47,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:47,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:47,754 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:48,384 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:48,540 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:04:48,701 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:48,930 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:49,130 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:49,270 INFO L93 Difference]: Finished difference Result 17636 states and 45893 transitions. [2021-07-09 17:04:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:49,293 INFO L225 Difference]: With dead ends: 17636 [2021-07-09 17:04:49,293 INFO L226 Difference]: Without dead ends: 17636 [2021-07-09 17:04:49,293 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1411.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:49,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17636 states. [2021-07-09 17:04:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17636 to 9549. [2021-07-09 17:04:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9547 states have (on average 2.6818895988268565) internal successors, (25604), 9548 states have internal predecessors, (25604), 0 states have call successors, (0), 0 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 17:04:49,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 25604 transitions. [2021-07-09 17:04:49,474 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 25604 transitions. Word has length 114 [2021-07-09 17:04:49,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:49,474 INFO L482 AbstractCegarLoop]: Abstraction has 9549 states and 25604 transitions. [2021-07-09 17:04:49,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:49,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 25604 transitions. [2021-07-09 17:04:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:49,484 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:49,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:49,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-07-09 17:04:49,484 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:49,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:49,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2017090518, now seen corresponding path program 325 times [2021-07-09 17:04:49,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:49,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138163104] [2021-07-09 17:04:49,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:49,817 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 17:04:49,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:49,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138163104] [2021-07-09 17:04:49,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138163104] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:49,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:49,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:49,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025424995] [2021-07-09 17:04:49,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:49,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:49,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:49,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:49,818 INFO L87 Difference]: Start difference. First operand 9549 states and 25604 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:50,469 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:50,623 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:50,807 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:51,001 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:51,207 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:51,396 INFO L93 Difference]: Finished difference Result 21081 states and 54759 transitions. [2021-07-09 17:04:51,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:51,424 INFO L225 Difference]: With dead ends: 21081 [2021-07-09 17:04:51,424 INFO L226 Difference]: Without dead ends: 21081 [2021-07-09 17:04:51,424 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1398.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21081 states. [2021-07-09 17:04:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21081 to 9597. [2021-07-09 17:04:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 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 17:04:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-07-09 17:04:51,618 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-07-09 17:04:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:51,618 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-07-09 17:04:51,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-07-09 17:04:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:51,628 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:51,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:51,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-07-09 17:04:51,628 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:51,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2029329798, now seen corresponding path program 326 times [2021-07-09 17:04:51,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:51,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200722808] [2021-07-09 17:04:51,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:51,951 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 17:04:51,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:51,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200722808] [2021-07-09 17:04:51,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200722808] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:51,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:51,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:51,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470676133] [2021-07-09 17:04:51,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:51,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:51,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:51,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:51,952 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:52,659 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:52,837 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:53,039 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:53,254 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:53,480 INFO L93 Difference]: Finished difference Result 20921 states and 54357 transitions. [2021-07-09 17:04:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:53,481 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:53,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:53,517 INFO L225 Difference]: With dead ends: 20921 [2021-07-09 17:04:53,517 INFO L226 Difference]: Without dead ends: 20921 [2021-07-09 17:04:53,517 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:53,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20921 states. [2021-07-09 17:04:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20921 to 9581. [2021-07-09 17:04:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 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 17:04:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-07-09 17:04:53,739 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-07-09 17:04:53,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:53,739 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-07-09 17:04:53,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:53,739 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-07-09 17:04:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:53,750 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:53,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:53,750 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-07-09 17:04:53,750 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:53,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:53,750 INFO L82 PathProgramCache]: Analyzing trace with hash 872512494, now seen corresponding path program 327 times [2021-07-09 17:04:53,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:53,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334951822] [2021-07-09 17:04:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:54,082 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 17:04:54,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:54,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334951822] [2021-07-09 17:04:54,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334951822] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:54,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:54,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:54,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808625630] [2021-07-09 17:04:54,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:54,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:54,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:54,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:54,083 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:54,723 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:04:54,876 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:55,030 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:04:55,225 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:55,429 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:55,575 INFO L93 Difference]: Finished difference Result 18072 states and 47097 transitions. [2021-07-09 17:04:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:55,575 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:55,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:55,599 INFO L225 Difference]: With dead ends: 18072 [2021-07-09 17:04:55,600 INFO L226 Difference]: Without dead ends: 18072 [2021-07-09 17:04:55,600 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1383.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2021-07-09 17:04:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 9517. [2021-07-09 17:04:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9517 states, 9515 states have (on average 2.681240147136101) internal successors, (25512), 9516 states have internal predecessors, (25512), 0 states have call successors, (0), 0 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 17:04:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9517 states to 9517 states and 25512 transitions. [2021-07-09 17:04:55,770 INFO L78 Accepts]: Start accepts. Automaton has 9517 states and 25512 transitions. Word has length 114 [2021-07-09 17:04:55,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:55,771 INFO L482 AbstractCegarLoop]: Abstraction has 9517 states and 25512 transitions. [2021-07-09 17:04:55,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 9517 states and 25512 transitions. [2021-07-09 17:04:55,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:55,781 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:55,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:55,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-07-09 17:04:55,781 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:55,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:55,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1770873898, now seen corresponding path program 328 times [2021-07-09 17:04:55,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:55,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073061932] [2021-07-09 17:04:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:56,133 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 17:04:56,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:56,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073061932] [2021-07-09 17:04:56,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073061932] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:56,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:56,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:56,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339332212] [2021-07-09 17:04:56,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:56,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:56,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:56,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:56,134 INFO L87 Difference]: Start difference. First operand 9517 states and 25512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:56,870 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:57,026 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:57,195 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:04:57,370 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:04:57,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:57,530 INFO L93 Difference]: Finished difference Result 16736 states and 43692 transitions. [2021-07-09 17:04:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:57,530 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:57,556 INFO L225 Difference]: With dead ends: 16736 [2021-07-09 17:04:57,556 INFO L226 Difference]: Without dead ends: 16736 [2021-07-09 17:04:57,557 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1284.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-07-09 17:04:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 9581. [2021-07-09 17:04:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 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 17:04:57,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-07-09 17:04:57,761 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-07-09 17:04:57,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:57,761 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-07-09 17:04:57,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:57,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-07-09 17:04:57,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:57,770 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:57,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:57,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-07-09 17:04:57,771 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:57,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:57,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1522326918, now seen corresponding path program 329 times [2021-07-09 17:04:57,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:57,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841784936] [2021-07-09 17:04:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:58,105 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 17:04:58,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:58,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841784936] [2021-07-09 17:04:58,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841784936] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:58,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:58,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:04:58,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428773001] [2021-07-09 17:04:58,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:04:58,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:58,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:04:58,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:04:58,106 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:58,742 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:04:58,887 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:04:59,060 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:04:59,240 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:04:59,441 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:04:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:59,582 INFO L93 Difference]: Finished difference Result 16576 states and 43290 transitions. [2021-07-09 17:04:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:04:59,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:04:59,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:59,604 INFO L225 Difference]: With dead ends: 16576 [2021-07-09 17:04:59,604 INFO L226 Difference]: Without dead ends: 16576 [2021-07-09 17:04:59,605 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1386.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:04:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16576 states. [2021-07-09 17:04:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16576 to 9565. [2021-07-09 17:04:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 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 17:04:59,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-07-09 17:04:59,764 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-07-09 17:04:59,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:59,764 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-07-09 17:04:59,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:04:59,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-07-09 17:04:59,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:04:59,774 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:59,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:59,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-07-09 17:04:59,774 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:59,774 INFO L82 PathProgramCache]: Analyzing trace with hash 365509614, now seen corresponding path program 330 times [2021-07-09 17:04:59,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:59,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467499065] [2021-07-09 17:04:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:00,116 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 17:05:00,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:00,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467499065] [2021-07-09 17:05:00,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467499065] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:00,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:00,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:00,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250344432] [2021-07-09 17:05:00,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:00,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:00,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:00,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:00,117 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:00,810 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:00,966 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:01,129 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:01,335 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:01,565 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:01,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:01,741 INFO L93 Difference]: Finished difference Result 16864 states and 44118 transitions. [2021-07-09 17:05:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:01,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:01,769 INFO L225 Difference]: With dead ends: 16864 [2021-07-09 17:05:01,770 INFO L226 Difference]: Without dead ends: 16864 [2021-07-09 17:05:01,770 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1470.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:01,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2021-07-09 17:05:01,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 9533. [2021-07-09 17:05:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9533 states, 9531 states have (on average 2.6815654181093276) internal successors, (25558), 9532 states have internal predecessors, (25558), 0 states have call successors, (0), 0 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 17:05:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9533 states to 9533 states and 25558 transitions. [2021-07-09 17:05:01,975 INFO L78 Accepts]: Start accepts. Automaton has 9533 states and 25558 transitions. Word has length 114 [2021-07-09 17:05:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:01,975 INFO L482 AbstractCegarLoop]: Abstraction has 9533 states and 25558 transitions. [2021-07-09 17:05:01,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 9533 states and 25558 transitions. [2021-07-09 17:05:02,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:02,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:02,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:02,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-07-09 17:05:02,091 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:02,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:02,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2073692752, now seen corresponding path program 331 times [2021-07-09 17:05:02,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:02,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590186070] [2021-07-09 17:05:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:02,462 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 17:05:02,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:02,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590186070] [2021-07-09 17:05:02,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590186070] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:02,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:02,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:02,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748202300] [2021-07-09 17:05:02,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:02,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:02,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:02,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:02,463 INFO L87 Difference]: Start difference. First operand 9533 states and 25558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:03,125 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:03,271 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:05:03,433 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:03,657 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:03,861 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:04,014 INFO L93 Difference]: Finished difference Result 13579 states and 35654 transitions. [2021-07-09 17:05:04,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:04,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:04,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:04,033 INFO L225 Difference]: With dead ends: 13579 [2021-07-09 17:05:04,033 INFO L226 Difference]: Without dead ends: 13579 [2021-07-09 17:05:04,034 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1455.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13579 states. [2021-07-09 17:05:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13579 to 9469. [2021-07-09 17:05:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 9467 states have (on average 2.6802577374036125) internal successors, (25374), 9468 states have internal predecessors, (25374), 0 states have call successors, (0), 0 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 17:05:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 25374 transitions. [2021-07-09 17:05:04,191 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 25374 transitions. Word has length 114 [2021-07-09 17:05:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:04,192 INFO L482 AbstractCegarLoop]: Abstraction has 9469 states and 25374 transitions. [2021-07-09 17:05:04,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 25374 transitions. [2021-07-09 17:05:04,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:04,202 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:04,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:04,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-07-09 17:05:04,202 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:04,202 INFO L82 PathProgramCache]: Analyzing trace with hash 85078862, now seen corresponding path program 332 times [2021-07-09 17:05:04,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:04,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255837829] [2021-07-09 17:05:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:04,538 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 17:05:04,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:04,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255837829] [2021-07-09 17:05:04,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255837829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:04,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:04,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:04,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323129002] [2021-07-09 17:05:04,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:04,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:04,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:04,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:04,539 INFO L87 Difference]: Start difference. First operand 9469 states and 25374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:05,231 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:05,406 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:05:05,576 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:05,768 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:05,982 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:06,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:06,139 INFO L93 Difference]: Finished difference Result 11153 states and 29359 transitions. [2021-07-09 17:05:06,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:06,139 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:06,154 INFO L225 Difference]: With dead ends: 11153 [2021-07-09 17:05:06,155 INFO L226 Difference]: Without dead ends: 11153 [2021-07-09 17:05:06,155 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1456.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11153 states. [2021-07-09 17:05:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11153 to 9381. [2021-07-09 17:05:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 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 17:05:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-07-09 17:05:06,299 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-07-09 17:05:06,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:06,299 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-07-09 17:05:06,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-07-09 17:05:06,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:06,310 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:06,310 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:06,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-07-09 17:05:06,311 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:06,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:06,311 INFO L82 PathProgramCache]: Analyzing trace with hash -2000300084, now seen corresponding path program 333 times [2021-07-09 17:05:06,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:06,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001369749] [2021-07-09 17:05:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:05:06,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:06,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001369749] [2021-07-09 17:05:06,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001369749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:06,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:06,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:06,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813873516] [2021-07-09 17:05:06,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:06,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:06,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:06,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:06,639 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:06,937 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-07-09 17:05:07,371 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:07,530 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:05:07,700 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:07,902 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:05:08,119 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:05:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:08,254 INFO L93 Difference]: Finished difference Result 11966 states and 31163 transitions. [2021-07-09 17:05:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:08,254 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:08,272 INFO L225 Difference]: With dead ends: 11966 [2021-07-09 17:05:08,272 INFO L226 Difference]: Without dead ends: 11966 [2021-07-09 17:05:08,272 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1528.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11966 states. [2021-07-09 17:05:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11966 to 9365. [2021-07-09 17:05:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9365 states, 9363 states have (on average 2.677774217665278) internal successors, (25072), 9364 states have internal predecessors, (25072), 0 states have call successors, (0), 0 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 17:05:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 25072 transitions. [2021-07-09 17:05:08,438 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 25072 transitions. Word has length 114 [2021-07-09 17:05:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:08,438 INFO L482 AbstractCegarLoop]: Abstraction has 9365 states and 25072 transitions. [2021-07-09 17:05:08,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 25072 transitions. [2021-07-09 17:05:08,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:08,449 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:08,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:08,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-07-09 17:05:08,449 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:08,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:08,450 INFO L82 PathProgramCache]: Analyzing trace with hash 2020442414, now seen corresponding path program 334 times [2021-07-09 17:05:08,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:08,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600688289] [2021-07-09 17:05:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:08,791 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 17:05:08,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:08,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600688289] [2021-07-09 17:05:08,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600688289] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:08,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:08,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:08,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874815321] [2021-07-09 17:05:08,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:08,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:08,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:08,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:08,792 INFO L87 Difference]: Start difference. First operand 9365 states and 25072 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:09,458 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:09,623 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:05:09,797 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:09,997 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:05:10,207 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:05:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:10,372 INFO L93 Difference]: Finished difference Result 15079 states and 39113 transitions. [2021-07-09 17:05:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:10,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:10,397 INFO L225 Difference]: With dead ends: 15079 [2021-07-09 17:05:10,397 INFO L226 Difference]: Without dead ends: 15079 [2021-07-09 17:05:10,398 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1450.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15079 states. [2021-07-09 17:05:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15079 to 9381. [2021-07-09 17:05:10,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 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 17:05:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-07-09 17:05:10,595 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-07-09 17:05:10,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:10,595 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-07-09 17:05:10,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-07-09 17:05:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:10,606 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:10,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:10,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-07-09 17:05:10,606 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:10,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:10,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1771895434, now seen corresponding path program 335 times [2021-07-09 17:05:10,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:10,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344367744] [2021-07-09 17:05:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:05:10,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:10,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344367744] [2021-07-09 17:05:10,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344367744] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:10,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:10,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:10,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258182512] [2021-07-09 17:05:10,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:10,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:10,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:10,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:10,947 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:11,614 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:11,780 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-09 17:05:11,983 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:12,145 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:12,349 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:12,489 INFO L93 Difference]: Finished difference Result 12144 states and 31639 transitions. [2021-07-09 17:05:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:12,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:12,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:12,509 INFO L225 Difference]: With dead ends: 12144 [2021-07-09 17:05:12,509 INFO L226 Difference]: Without dead ends: 12144 [2021-07-09 17:05:12,510 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1437.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12144 states. [2021-07-09 17:05:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12144 to 9349. [2021-07-09 17:05:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9349 states, 9347 states have (on average 2.6774366106772227) internal successors, (25026), 9348 states have internal predecessors, (25026), 0 states have call successors, (0), 0 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 17:05:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 25026 transitions. [2021-07-09 17:05:12,687 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 25026 transitions. Word has length 114 [2021-07-09 17:05:12,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:12,688 INFO L482 AbstractCegarLoop]: Abstraction has 9349 states and 25026 transitions. [2021-07-09 17:05:12,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:12,688 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 25026 transitions. [2021-07-09 17:05:12,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:12,699 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:12,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:12,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-07-09 17:05:12,699 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:12,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:12,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1044609076, now seen corresponding path program 336 times [2021-07-09 17:05:12,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:12,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192787351] [2021-07-09 17:05:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:05:13,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:13,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192787351] [2021-07-09 17:05:13,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192787351] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:13,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:13,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:13,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895061700] [2021-07-09 17:05:13,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:13,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:13,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:13,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:13,048 INFO L87 Difference]: Start difference. First operand 9349 states and 25026 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:13,730 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:13,888 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:14,079 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:14,281 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:05:14,491 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:05:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:14,650 INFO L93 Difference]: Finished difference Result 15589 states and 40505 transitions. [2021-07-09 17:05:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:14,677 INFO L225 Difference]: With dead ends: 15589 [2021-07-09 17:05:14,678 INFO L226 Difference]: Without dead ends: 15589 [2021-07-09 17:05:14,678 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1502.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15589 states. [2021-07-09 17:05:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15589 to 9397. [2021-07-09 17:05:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9397 states, 9395 states have (on average 2.6784459819052686) internal successors, (25164), 9396 states have internal predecessors, (25164), 0 states have call successors, (0), 0 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 17:05:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9397 states to 9397 states and 25164 transitions. [2021-07-09 17:05:14,887 INFO L78 Accepts]: Start accepts. Automaton has 9397 states and 25164 transitions. Word has length 114 [2021-07-09 17:05:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:14,887 INFO L482 AbstractCegarLoop]: Abstraction has 9397 states and 25164 transitions. [2021-07-09 17:05:14,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9397 states and 25164 transitions. [2021-07-09 17:05:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:14,899 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:14,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:14,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-07-09 17:05:14,899 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:14,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:14,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1293156056, now seen corresponding path program 337 times [2021-07-09 17:05:14,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:14,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831541132] [2021-07-09 17:05:14,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:15,255 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 17:05:15,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:15,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831541132] [2021-07-09 17:05:15,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831541132] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:15,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:15,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:15,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617642882] [2021-07-09 17:05:15,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:15,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:15,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:15,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:15,256 INFO L87 Difference]: Start difference. First operand 9397 states and 25164 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:15,935 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:16,091 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:16,274 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:16,459 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:16,674 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:16,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:16,888 INFO L93 Difference]: Finished difference Result 15429 states and 40103 transitions. [2021-07-09 17:05:16,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:16,889 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:16,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:16,910 INFO L225 Difference]: With dead ends: 15429 [2021-07-09 17:05:16,910 INFO L226 Difference]: Without dead ends: 15429 [2021-07-09 17:05:16,911 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1476.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15429 states. [2021-07-09 17:05:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15429 to 9381. [2021-07-09 17:05:17,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 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 17:05:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-07-09 17:05:17,093 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-07-09 17:05:17,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:17,093 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-07-09 17:05:17,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-07-09 17:05:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:17,105 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:17,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:17,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-07-09 17:05:17,105 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:17,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1844993936, now seen corresponding path program 338 times [2021-07-09 17:05:17,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:17,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492840109] [2021-07-09 17:05:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:17,439 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 17:05:17,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:17,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492840109] [2021-07-09 17:05:17,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492840109] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:17,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:17,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:17,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453209291] [2021-07-09 17:05:17,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:17,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:17,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:17,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:17,440 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:18,072 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-09 17:05:18,219 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:18,371 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:18,569 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:18,783 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:18,922 INFO L93 Difference]: Finished difference Result 12580 states and 32843 transitions. [2021-07-09 17:05:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:18,923 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:18,942 INFO L225 Difference]: With dead ends: 12580 [2021-07-09 17:05:18,942 INFO L226 Difference]: Without dead ends: 12580 [2021-07-09 17:05:18,942 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1395.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:18,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12580 states. [2021-07-09 17:05:19,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12580 to 9317. [2021-07-09 17:05:19,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9317 states, 9315 states have (on average 2.6767579173376275) internal successors, (24934), 9316 states have internal predecessors, (24934), 0 states have call successors, (0), 0 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 17:05:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 24934 transitions. [2021-07-09 17:05:19,116 INFO L78 Accepts]: Start accepts. Automaton has 9317 states and 24934 transitions. Word has length 114 [2021-07-09 17:05:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:19,116 INFO L482 AbstractCegarLoop]: Abstraction has 9317 states and 24934 transitions. [2021-07-09 17:05:19,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:19,117 INFO L276 IsEmpty]: Start isEmpty. Operand 9317 states and 24934 transitions. [2021-07-09 17:05:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:19,128 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:19,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:19,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-07-09 17:05:19,128 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:19,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:19,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1551611956, now seen corresponding path program 339 times [2021-07-09 17:05:19,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:19,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879454833] [2021-07-09 17:05:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:19,471 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 17:05:19,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:19,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879454833] [2021-07-09 17:05:19,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879454833] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:19,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:19,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:19,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171178498] [2021-07-09 17:05:19,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:19,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:19,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:19,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:19,472 INFO L87 Difference]: Start difference. First operand 9317 states and 24934 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:20,116 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:20,256 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:20,456 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:20,691 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:05:20,916 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:05:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:21,106 INFO L93 Difference]: Finished difference Result 16099 states and 41897 transitions. [2021-07-09 17:05:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:21,106 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:21,133 INFO L225 Difference]: With dead ends: 16099 [2021-07-09 17:05:21,133 INFO L226 Difference]: Without dead ends: 16099 [2021-07-09 17:05:21,133 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1463.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16099 states. [2021-07-09 17:05:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16099 to 9381. [2021-07-09 17:05:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 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 17:05:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-07-09 17:05:21,438 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-07-09 17:05:21,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:21,438 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-07-09 17:05:21,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-07-09 17:05:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:21,450 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:21,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:21,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-07-09 17:05:21,450 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:21,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1800158936, now seen corresponding path program 340 times [2021-07-09 17:05:21,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:21,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167688383] [2021-07-09 17:05:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:05:21,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:21,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167688383] [2021-07-09 17:05:21,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167688383] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:21,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:21,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:21,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838602500] [2021-07-09 17:05:21,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:21,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:21,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:21,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:21,827 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:22,641 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:22,820 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:23,012 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:23,237 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:23,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:23,442 INFO L93 Difference]: Finished difference Result 15939 states and 41495 transitions. [2021-07-09 17:05:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:23,442 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:23,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:23,476 INFO L225 Difference]: With dead ends: 15939 [2021-07-09 17:05:23,476 INFO L226 Difference]: Without dead ends: 15939 [2021-07-09 17:05:23,477 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1468.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15939 states. [2021-07-09 17:05:23,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15939 to 9365. [2021-07-09 17:05:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9365 states, 9363 states have (on average 2.677774217665278) internal successors, (25072), 9364 states have internal predecessors, (25072), 0 states have call successors, (0), 0 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 17:05:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 25072 transitions. [2021-07-09 17:05:23,738 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 25072 transitions. Word has length 114 [2021-07-09 17:05:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:23,739 INFO L482 AbstractCegarLoop]: Abstraction has 9365 states and 25072 transitions. [2021-07-09 17:05:23,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 25072 transitions. [2021-07-09 17:05:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:23,750 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:23,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:23,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-07-09 17:05:23,751 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:23,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1337991056, now seen corresponding path program 341 times [2021-07-09 17:05:23,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:23,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380268710] [2021-07-09 17:05:23,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:24,119 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 17:05:24,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:24,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380268710] [2021-07-09 17:05:24,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380268710] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:24,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:24,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:24,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804505727] [2021-07-09 17:05:24,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:24,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:24,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:24,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:24,120 INFO L87 Difference]: Start difference. First operand 9365 states and 25072 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:24,796 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:24,945 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:25,122 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:25,331 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:25,543 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:25,711 INFO L93 Difference]: Finished difference Result 16227 states and 42323 transitions. [2021-07-09 17:05:25,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:25,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:25,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:25,738 INFO L225 Difference]: With dead ends: 16227 [2021-07-09 17:05:25,738 INFO L226 Difference]: Without dead ends: 16227 [2021-07-09 17:05:25,738 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1454.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16227 states. [2021-07-09 17:05:25,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16227 to 9333. [2021-07-09 17:05:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9333 states, 9331 states have (on average 2.677097845890044) internal successors, (24980), 9332 states have internal predecessors, (24980), 0 states have call successors, (0), 0 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 17:05:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9333 states to 9333 states and 24980 transitions. [2021-07-09 17:05:25,934 INFO L78 Accepts]: Start accepts. Automaton has 9333 states and 24980 transitions. Word has length 114 [2021-07-09 17:05:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:25,934 INFO L482 AbstractCegarLoop]: Abstraction has 9333 states and 24980 transitions. [2021-07-09 17:05:25,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 9333 states and 24980 transitions. [2021-07-09 17:05:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:25,945 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:25,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:25,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-07-09 17:05:25,945 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:25,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:25,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1248793102, now seen corresponding path program 342 times [2021-07-09 17:05:25,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:25,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636905963] [2021-07-09 17:05:25,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:26,479 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 17:05:26,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:26,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636905963] [2021-07-09 17:05:26,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636905963] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:26,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:26,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:26,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742348177] [2021-07-09 17:05:26,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:26,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:26,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:26,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:26,481 INFO L87 Difference]: Start difference. First operand 9333 states and 24980 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:27,121 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:27,257 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:05:27,415 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:27,599 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:27,750 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:27,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:27,877 INFO L93 Difference]: Finished difference Result 12942 states and 33859 transitions. [2021-07-09 17:05:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:27,877 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:27,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:27,898 INFO L225 Difference]: With dead ends: 12942 [2021-07-09 17:05:27,898 INFO L226 Difference]: Without dead ends: 12942 [2021-07-09 17:05:27,898 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1427.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12942 states. [2021-07-09 17:05:28,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12942 to 9301. [2021-07-09 17:05:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9301 states, 9299 states have (on average 2.6764168190127973) internal successors, (24888), 9300 states have internal predecessors, (24888), 0 states have call successors, (0), 0 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 17:05:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9301 states to 9301 states and 24888 transitions. [2021-07-09 17:05:28,072 INFO L78 Accepts]: Start accepts. Automaton has 9301 states and 24888 transitions. Word has length 114 [2021-07-09 17:05:28,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:28,072 INFO L482 AbstractCegarLoop]: Abstraction has 9301 states and 24888 transitions. [2021-07-09 17:05:28,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 9301 states and 24888 transitions. [2021-07-09 17:05:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:28,084 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:28,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:28,084 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-07-09 17:05:28,084 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:28,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:28,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1805648174, now seen corresponding path program 343 times [2021-07-09 17:05:28,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:28,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599294024] [2021-07-09 17:05:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:28,388 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 17:05:28,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:28,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599294024] [2021-07-09 17:05:28,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599294024] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:28,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:28,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:28,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551817066] [2021-07-09 17:05:28,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:28,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:28,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:28,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:28,390 INFO L87 Difference]: Start difference. First operand 9301 states and 24888 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:29,114 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:29,280 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-09 17:05:29,477 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-09 17:05:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:29,622 INFO L93 Difference]: Finished difference Result 11228 states and 29392 transitions. [2021-07-09 17:05:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:29,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:29,640 INFO L225 Difference]: With dead ends: 11228 [2021-07-09 17:05:29,640 INFO L226 Difference]: Without dead ends: 11228 [2021-07-09 17:05:29,640 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1121.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11228 states. [2021-07-09 17:05:29,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11228 to 9197. [2021-07-09 17:05:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9197 states, 9195 states have (on average 2.6738444806960304) internal successors, (24586), 9196 states have internal predecessors, (24586), 0 states have call successors, (0), 0 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 17:05:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9197 states to 9197 states and 24586 transitions. [2021-07-09 17:05:29,811 INFO L78 Accepts]: Start accepts. Automaton has 9197 states and 24586 transitions. Word has length 114 [2021-07-09 17:05:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:29,811 INFO L482 AbstractCegarLoop]: Abstraction has 9197 states and 24586 transitions. [2021-07-09 17:05:29,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9197 states and 24586 transitions. [2021-07-09 17:05:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:29,822 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:29,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:29,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-07-09 17:05:29,823 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:29,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:29,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1557101194, now seen corresponding path program 344 times [2021-07-09 17:05:29,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:29,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958006661] [2021-07-09 17:05:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:30,252 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 17:05:30,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:30,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958006661] [2021-07-09 17:05:30,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958006661] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:30,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:30,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:30,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242859915] [2021-07-09 17:05:30,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:30,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:30,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:30,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:30,253 INFO L87 Difference]: Start difference. First operand 9197 states and 24586 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:30,730 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-07-09 17:05:30,969 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:31,118 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:31,297 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-09 17:05:31,487 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:31,702 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:31,829 INFO L93 Difference]: Finished difference Result 11068 states and 28990 transitions. [2021-07-09 17:05:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:31,830 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:31,845 INFO L225 Difference]: With dead ends: 11068 [2021-07-09 17:05:31,846 INFO L226 Difference]: Without dead ends: 11068 [2021-07-09 17:05:31,846 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1509.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2021-07-09 17:05:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 9181. [2021-07-09 17:05:31,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9181 states, 9179 states have (on average 2.673493844645386) internal successors, (24540), 9180 states have internal predecessors, (24540), 0 states have call successors, (0), 0 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 17:05:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9181 states to 9181 states and 24540 transitions. [2021-07-09 17:05:31,989 INFO L78 Accepts]: Start accepts. Automaton has 9181 states and 24540 transitions. Word has length 114 [2021-07-09 17:05:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:31,989 INFO L482 AbstractCegarLoop]: Abstraction has 9181 states and 24540 transitions. [2021-07-09 17:05:31,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9181 states and 24540 transitions. [2021-07-09 17:05:32,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:32,000 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:32,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:32,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-07-09 17:05:32,001 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:32,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:32,001 INFO L82 PathProgramCache]: Analyzing trace with hash 400283890, now seen corresponding path program 345 times [2021-07-09 17:05:32,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:32,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631488797] [2021-07-09 17:05:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:32,365 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 17:05:32,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:32,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631488797] [2021-07-09 17:05:32,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631488797] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:32,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:32,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:32,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401911986] [2021-07-09 17:05:32,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:32,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:32,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:32,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:32,366 INFO L87 Difference]: Start difference. First operand 9181 states and 24540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:33,001 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:33,147 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-09 17:05:33,296 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:33,495 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:33,727 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:33,857 INFO L93 Difference]: Finished difference Result 11356 states and 29818 transitions. [2021-07-09 17:05:33,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:33,857 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:33,874 INFO L225 Difference]: With dead ends: 11356 [2021-07-09 17:05:33,874 INFO L226 Difference]: Without dead ends: 11356 [2021-07-09 17:05:33,875 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1441.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:33,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11356 states. [2021-07-09 17:05:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11356 to 9149. [2021-07-09 17:05:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9149 states, 9147 states have (on average 2.672788892533071) internal successors, (24448), 9148 states have internal predecessors, (24448), 0 states have call successors, (0), 0 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 17:05:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9149 states to 9149 states and 24448 transitions. [2021-07-09 17:05:34,025 INFO L78 Accepts]: Start accepts. Automaton has 9149 states and 24448 transitions. Word has length 114 [2021-07-09 17:05:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:34,025 INFO L482 AbstractCegarLoop]: Abstraction has 9149 states and 24448 transitions. [2021-07-09 17:05:34,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 9149 states and 24448 transitions. [2021-07-09 17:05:34,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:34,036 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:34,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:34,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-07-09 17:05:34,036 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:34,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:34,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2108467028, now seen corresponding path program 346 times [2021-07-09 17:05:34,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:34,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301704565] [2021-07-09 17:05:34,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:34,425 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 17:05:34,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:34,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301704565] [2021-07-09 17:05:34,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301704565] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:34,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:34,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:34,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518112039] [2021-07-09 17:05:34,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:34,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:34,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:34,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:34,427 INFO L87 Difference]: Start difference. First operand 9149 states and 24448 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:35,074 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-09 17:05:35,216 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:05:35,371 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:35,588 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:35,858 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:35,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:35,984 INFO L93 Difference]: Finished difference Result 11644 states and 30646 transitions. [2021-07-09 17:05:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:35,984 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:35,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:36,000 INFO L225 Difference]: With dead ends: 11644 [2021-07-09 17:05:36,001 INFO L226 Difference]: Without dead ends: 11644 [2021-07-09 17:05:36,001 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1459.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11644 states. [2021-07-09 17:05:36,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11644 to 9133. [2021-07-09 17:05:36,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9133 states, 9131 states have (on average 2.672434563574636) internal successors, (24402), 9132 states have internal predecessors, (24402), 0 states have call successors, (0), 0 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 17:05:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9133 states to 9133 states and 24402 transitions. [2021-07-09 17:05:36,145 INFO L78 Accepts]: Start accepts. Automaton has 9133 states and 24402 transitions. Word has length 114 [2021-07-09 17:05:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:36,145 INFO L482 AbstractCegarLoop]: Abstraction has 9133 states and 24402 transitions. [2021-07-09 17:05:36,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 9133 states and 24402 transitions. [2021-07-09 17:05:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:36,155 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:36,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:36,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-07-09 17:05:36,156 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:36,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:36,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1089684934, now seen corresponding path program 347 times [2021-07-09 17:05:36,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:36,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033634628] [2021-07-09 17:05:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:36,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:05:36,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:36,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033634628] [2021-07-09 17:05:36,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033634628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:36,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:36,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 17:05:36,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924874015] [2021-07-09 17:05:36,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 17:05:36,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:36,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 17:05:36,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:05:36,541 INFO L87 Difference]: Start difference. First operand 9133 states and 24402 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:37,350 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-09 17:05:37,510 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-09 17:05:37,711 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-09 17:05:37,914 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-09 17:05:38,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:38,042 INFO L93 Difference]: Finished difference Result 7997 states and 21166 transitions. [2021-07-09 17:05:38,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:05:38,043 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:38,054 INFO L225 Difference]: With dead ends: 7997 [2021-07-09 17:05:38,054 INFO L226 Difference]: Without dead ends: 7997 [2021-07-09 17:05:38,055 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1457.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-09 17:05:38,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7997 states. [2021-07-09 17:05:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7997 to 7517. [2021-07-09 17:05:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7517 states, 7515 states have (on average 2.645642049234864) internal successors, (19882), 7516 states have internal predecessors, (19882), 0 states have call successors, (0), 0 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 17:05:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 19882 transitions. [2021-07-09 17:05:38,155 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 19882 transitions. Word has length 114 [2021-07-09 17:05:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:38,155 INFO L482 AbstractCegarLoop]: Abstraction has 7517 states and 19882 transitions. [2021-07-09 17:05:38,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 19882 transitions. [2021-07-09 17:05:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:38,164 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:38,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:38,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-07-09 17:05:38,165 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:38,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1847389874, now seen corresponding path program 5 times [2021-07-09 17:05:38,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:38,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222285233] [2021-07-09 17:05:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:38,777 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 17:05:38,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:38,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222285233] [2021-07-09 17:05:38,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222285233] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:38,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:38,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-09 17:05:38,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93273737] [2021-07-09 17:05:38,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-09 17:05:38,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:38,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-09 17:05:38,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2021-07-09 17:05:38,779 INFO L87 Difference]: Start difference. First operand 7517 states and 19882 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:46,041 INFO L93 Difference]: Finished difference Result 10026 states and 26582 transitions. [2021-07-09 17:05:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-07-09 17:05:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:46,057 INFO L225 Difference]: With dead ends: 10026 [2021-07-09 17:05:46,057 INFO L226 Difference]: Without dead ends: 10026 [2021-07-09 17:05:46,058 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3005 ImplicationChecksByTransitivity, 5423.6ms TimeCoverageRelationStatistics Valid=2899, Invalid=9757, Unknown=0, NotChecked=0, Total=12656 [2021-07-09 17:05:46,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10026 states. [2021-07-09 17:05:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10026 to 5906. [2021-07-09 17:05:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 2.6573509485094853) internal successors, (15689), 5905 states have internal predecessors, (15689), 0 states have call successors, (0), 0 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 17:05:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 15689 transitions. [2021-07-09 17:05:46,188 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 15689 transitions. Word has length 114 [2021-07-09 17:05:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:46,188 INFO L482 AbstractCegarLoop]: Abstraction has 5906 states and 15689 transitions. [2021-07-09 17:05:46,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 15689 transitions. [2021-07-09 17:05:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-09 17:05:46,196 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:46,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:46,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-07-09 17:05:46,196 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:46,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1457458746, now seen corresponding path program 348 times [2021-07-09 17:05:46,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:46,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686402403] [2021-07-09 17:05:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:46,506 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 17:05:46,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:46,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686402403] [2021-07-09 17:05:46,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686402403] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:46,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:46,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 17:05:46,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683771220] [2021-07-09 17:05:46,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 17:05:46,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:46,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 17:05:46,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-07-09 17:05:46,507 INFO L87 Difference]: Start difference. First operand 5906 states and 15689 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:47,538 INFO L93 Difference]: Finished difference Result 6154 states and 16202 transitions. [2021-07-09 17:05:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 17:05:47,538 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-07-09 17:05:47,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:47,546 INFO L225 Difference]: With dead ends: 6154 [2021-07-09 17:05:47,546 INFO L226 Difference]: Without dead ends: 6154 [2021-07-09 17:05:47,546 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 883.0ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 17:05:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2021-07-09 17:05:47,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 5675. [2021-07-09 17:05:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5675 states, 5674 states have (on average 2.6765949947127248) internal successors, (15187), 5674 states have internal predecessors, (15187), 0 states have call successors, (0), 0 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 17:05:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5675 states to 5675 states and 15187 transitions. [2021-07-09 17:05:47,613 INFO L78 Accepts]: Start accepts. Automaton has 5675 states and 15187 transitions. Word has length 114 [2021-07-09 17:05:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:47,613 INFO L482 AbstractCegarLoop]: Abstraction has 5675 states and 15187 transitions. [2021-07-09 17:05:47,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 17:05:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5675 states and 15187 transitions. [2021-07-09 17:05:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:05:47,618 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:47,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:47,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-07-09 17:05:47,619 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:47,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:47,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1505770567, now seen corresponding path program 1 times [2021-07-09 17:05:47,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:47,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119396989] [2021-07-09 17:05:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:49,046 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 17:05:49,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:49,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119396989] [2021-07-09 17:05:49,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119396989] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:49,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:49,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:05:49,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948834337] [2021-07-09 17:05:49,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:05:49,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:49,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:05:49,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:05:49,047 INFO L87 Difference]: Start difference. First operand 5675 states and 15187 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:05:49,939 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-07-09 17:05:50,113 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-07-09 17:05:50,316 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-07-09 17:05:50,779 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-07-09 17:05:51,031 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-07-09 17:05:51,334 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-07-09 17:05:51,713 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 87 [2021-07-09 17:05:52,165 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-07-09 17:05:52,793 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-07-09 17:05:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:54,618 INFO L93 Difference]: Finished difference Result 7687 states and 20275 transitions. [2021-07-09 17:05:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:05:54,618 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:05:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:54,628 INFO L225 Difference]: With dead ends: 7687 [2021-07-09 17:05:54,628 INFO L226 Difference]: Without dead ends: 7211 [2021-07-09 17:05:54,629 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 5062.7ms TimeCoverageRelationStatistics Valid=754, Invalid=3668, Unknown=0, NotChecked=0, Total=4422 [2021-07-09 17:05:54,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7211 states. [2021-07-09 17:05:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7211 to 6683. [2021-07-09 17:05:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 6682 states have (on average 2.6750972762645913) internal successors, (17875), 6682 states have internal predecessors, (17875), 0 states have call successors, (0), 0 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 17:05:54,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 17875 transitions. [2021-07-09 17:05:54,722 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 17875 transitions. Word has length 120 [2021-07-09 17:05:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:54,722 INFO L482 AbstractCegarLoop]: Abstraction has 6683 states and 17875 transitions. [2021-07-09 17:05:54,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:05:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 17875 transitions. [2021-07-09 17:05:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:05:54,731 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:54,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:05:54,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-07-09 17:05:54,731 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:54,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1636637231, now seen corresponding path program 2 times [2021-07-09 17:05:54,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:54,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640798095] [2021-07-09 17:05:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:56,185 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 17:05:56,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:56,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640798095] [2021-07-09 17:05:56,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640798095] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:56,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:56,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:05:56,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725919096] [2021-07-09 17:05:56,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:05:56,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:56,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:05:56,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:05:56,186 INFO L87 Difference]: Start difference. First operand 6683 states and 17875 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:05:57,132 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-07-09 17:05:57,318 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-07-09 17:05:57,552 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-07-09 17:05:57,996 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-07-09 17:05:58,230 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-07-09 17:05:58,474 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-07-09 17:05:58,820 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 87 [2021-07-09 17:05:59,182 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-07-09 17:05:59,683 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-07-09 17:06:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:01,500 INFO L93 Difference]: Finished difference Result 7344 states and 19352 transitions. [2021-07-09 17:06:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 17:06:01,500 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:01,511 INFO L225 Difference]: With dead ends: 7344 [2021-07-09 17:06:01,511 INFO L226 Difference]: Without dead ends: 7139 [2021-07-09 17:06:01,511 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 5009.1ms TimeCoverageRelationStatistics Valid=758, Invalid=3798, Unknown=0, NotChecked=0, Total=4556 [2021-07-09 17:06:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7139 states. [2021-07-09 17:06:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7139 to 6611. [2021-07-09 17:06:01,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6610 states have (on average 2.6751891074130105) internal successors, (17683), 6610 states have internal predecessors, (17683), 0 states have call successors, (0), 0 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 17:06:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 17683 transitions. [2021-07-09 17:06:01,591 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 17683 transitions. Word has length 120 [2021-07-09 17:06:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:01,591 INFO L482 AbstractCegarLoop]: Abstraction has 6611 states and 17683 transitions. [2021-07-09 17:06:01,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 17683 transitions. [2021-07-09 17:06:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:01,598 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:01,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:01,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-07-09 17:06:01,598 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:01,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:01,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1572328353, now seen corresponding path program 3 times [2021-07-09 17:06:01,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:01,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912742083] [2021-07-09 17:06:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:02,899 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 17:06:02,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:02,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912742083] [2021-07-09 17:06:02,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912742083] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:02,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:02,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:02,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314744105] [2021-07-09 17:06:02,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:02,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:02,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:02,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:02,901 INFO L87 Difference]: Start difference. First operand 6611 states and 17683 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:03,962 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-07-09 17:06:04,153 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-07-09 17:06:04,575 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-07-09 17:06:04,848 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-07-09 17:06:05,168 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-07-09 17:06:05,589 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 87 [2021-07-09 17:06:06,020 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-07-09 17:06:06,614 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-07-09 17:06:08,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:08,349 INFO L93 Difference]: Finished difference Result 7251 states and 19128 transitions. [2021-07-09 17:06:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:06:08,349 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:08,358 INFO L225 Difference]: With dead ends: 7251 [2021-07-09 17:06:08,359 INFO L226 Difference]: Without dead ends: 6706 [2021-07-09 17:06:08,359 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 4998.3ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-07-09 17:06:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2021-07-09 17:06:08,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6275. [2021-07-09 17:06:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 2.688396557220274) internal successors, (16867), 6274 states have internal predecessors, (16867), 0 states have call successors, (0), 0 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 17:06:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 16867 transitions. [2021-07-09 17:06:08,434 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 16867 transitions. Word has length 120 [2021-07-09 17:06:08,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:08,434 INFO L482 AbstractCegarLoop]: Abstraction has 6275 states and 16867 transitions. [2021-07-09 17:06:08,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:08,435 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 16867 transitions. [2021-07-09 17:06:08,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:08,442 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:08,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:08,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-07-09 17:06:08,442 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:08,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:08,442 INFO L82 PathProgramCache]: Analyzing trace with hash -664437637, now seen corresponding path program 4 times [2021-07-09 17:06:08,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:08,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372506834] [2021-07-09 17:06:08,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:09,506 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 17:06:09,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:09,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372506834] [2021-07-09 17:06:09,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372506834] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:09,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:09,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:09,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30751561] [2021-07-09 17:06:09,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:09,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:09,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:09,507 INFO L87 Difference]: Start difference. First operand 6275 states and 16867 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:10,561 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 17:06:10,746 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-07-09 17:06:11,161 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-07-09 17:06:11,395 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-07-09 17:06:11,654 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-07-09 17:06:11,998 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-07-09 17:06:12,367 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-07-09 17:06:12,895 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-07-09 17:06:13,456 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-07-09 17:06:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:14,747 INFO L93 Difference]: Finished difference Result 6850 states and 18162 transitions. [2021-07-09 17:06:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:06:14,747 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:14,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:14,758 INFO L225 Difference]: With dead ends: 6850 [2021-07-09 17:06:14,758 INFO L226 Difference]: Without dead ends: 6613 [2021-07-09 17:06:14,759 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 4605.1ms TimeCoverageRelationStatistics Valid=743, Invalid=3547, Unknown=0, NotChecked=0, Total=4290 [2021-07-09 17:06:14,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2021-07-09 17:06:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 6251. [2021-07-09 17:06:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 6250 states have (on average 2.69104) internal successors, (16819), 6250 states have internal predecessors, (16819), 0 states have call successors, (0), 0 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 17:06:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 16819 transitions. [2021-07-09 17:06:14,879 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 16819 transitions. Word has length 120 [2021-07-09 17:06:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:14,879 INFO L482 AbstractCegarLoop]: Abstraction has 6251 states and 16819 transitions. [2021-07-09 17:06:14,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 16819 transitions. [2021-07-09 17:06:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:14,886 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:14,886 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:14,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-07-09 17:06:14,886 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash -666710905, now seen corresponding path program 5 times [2021-07-09 17:06:14,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:14,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574380549] [2021-07-09 17:06:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:15,843 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 17:06:15,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:15,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574380549] [2021-07-09 17:06:15,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574380549] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:15,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:15,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:15,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461514973] [2021-07-09 17:06:15,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:15,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:15,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:15,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:15,844 INFO L87 Difference]: Start difference. First operand 6251 states and 16819 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:16,898 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 17:06:17,080 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-07-09 17:06:17,483 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-07-09 17:06:17,705 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-07-09 17:06:17,958 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-07-09 17:06:18,297 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-07-09 17:06:18,658 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-07-09 17:06:19,336 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 91 [2021-07-09 17:06:19,698 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2021-07-09 17:06:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:20,989 INFO L93 Difference]: Finished difference Result 6847 states and 18152 transitions. [2021-07-09 17:06:20,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:06:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:20,998 INFO L225 Difference]: With dead ends: 6847 [2021-07-09 17:06:20,998 INFO L226 Difference]: Without dead ends: 6552 [2021-07-09 17:06:20,998 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 4372.3ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-07-09 17:06:21,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2021-07-09 17:06:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 6182. [2021-07-09 17:06:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6181 states have (on average 2.686943860216793) internal successors, (16608), 6181 states have internal predecessors, (16608), 0 states have call successors, (0), 0 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 17:06:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 16608 transitions. [2021-07-09 17:06:21,075 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 16608 transitions. Word has length 120 [2021-07-09 17:06:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:21,075 INFO L482 AbstractCegarLoop]: Abstraction has 6182 states and 16608 transitions. [2021-07-09 17:06:21,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 16608 transitions. [2021-07-09 17:06:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:21,084 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:21,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:21,084 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-07-09 17:06:21,084 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:21,084 INFO L82 PathProgramCache]: Analyzing trace with hash -146836581, now seen corresponding path program 6 times [2021-07-09 17:06:21,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:21,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948446378] [2021-07-09 17:06:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:22,501 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 17:06:22,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:22,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948446378] [2021-07-09 17:06:22,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948446378] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:22,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:22,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:22,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265249422] [2021-07-09 17:06:22,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:22,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:22,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:22,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:22,502 INFO L87 Difference]: Start difference. First operand 6182 states and 16608 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:23,438 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-07-09 17:06:23,632 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-07-09 17:06:23,885 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-07-09 17:06:24,358 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-07-09 17:06:24,649 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-07-09 17:06:24,992 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-07-09 17:06:25,410 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-07-09 17:06:25,961 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-07-09 17:06:26,432 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-07-09 17:06:26,717 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-07-09 17:06:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:28,439 INFO L93 Difference]: Finished difference Result 7656 states and 20164 transitions. [2021-07-09 17:06:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 17:06:28,439 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:28,450 INFO L225 Difference]: With dead ends: 7656 [2021-07-09 17:06:28,451 INFO L226 Difference]: Without dead ends: 7180 [2021-07-09 17:06:28,451 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 5704.9ms TimeCoverageRelationStatistics Valid=792, Invalid=3900, Unknown=0, NotChecked=0, Total=4692 [2021-07-09 17:06:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7180 states. [2021-07-09 17:06:28,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7180 to 6638. [2021-07-09 17:06:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 2.6686756064486965) internal successors, (17712), 6637 states have internal predecessors, (17712), 0 states have call successors, (0), 0 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 17:06:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 17712 transitions. [2021-07-09 17:06:28,534 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 17712 transitions. Word has length 120 [2021-07-09 17:06:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:28,535 INFO L482 AbstractCegarLoop]: Abstraction has 6638 states and 17712 transitions. [2021-07-09 17:06:28,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 17712 transitions. [2021-07-09 17:06:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:28,542 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:28,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:28,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-07-09 17:06:28,542 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:28,542 INFO L82 PathProgramCache]: Analyzing trace with hash -277703245, now seen corresponding path program 7 times [2021-07-09 17:06:28,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:28,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508197718] [2021-07-09 17:06:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:29,693 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 17:06:29,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:29,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508197718] [2021-07-09 17:06:29,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508197718] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:29,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:29,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:29,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017529965] [2021-07-09 17:06:29,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:29,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:29,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:29,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:29,694 INFO L87 Difference]: Start difference. First operand 6638 states and 17712 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:30,749 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-09 17:06:30,938 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-07-09 17:06:31,362 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-07-09 17:06:31,587 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-07-09 17:06:31,882 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-07-09 17:06:32,227 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-07-09 17:06:32,723 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-07-09 17:06:33,064 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-07-09 17:06:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:35,182 INFO L93 Difference]: Finished difference Result 7313 states and 19241 transitions. [2021-07-09 17:06:35,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-09 17:06:35,182 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:35,194 INFO L225 Difference]: With dead ends: 7313 [2021-07-09 17:06:35,194 INFO L226 Difference]: Without dead ends: 7108 [2021-07-09 17:06:35,194 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 4925.1ms TimeCoverageRelationStatistics Valid=796, Invalid=4034, Unknown=0, NotChecked=0, Total=4830 [2021-07-09 17:06:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7108 states. [2021-07-09 17:06:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7108 to 6566. [2021-07-09 17:06:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6566 states, 6565 states have (on average 2.6686976389946686) internal successors, (17520), 6565 states have internal predecessors, (17520), 0 states have call successors, (0), 0 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 17:06:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 17520 transitions. [2021-07-09 17:06:35,280 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 17520 transitions. Word has length 120 [2021-07-09 17:06:35,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:35,280 INFO L482 AbstractCegarLoop]: Abstraction has 6566 states and 17520 transitions. [2021-07-09 17:06:35,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 17520 transitions. [2021-07-09 17:06:35,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:35,287 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:35,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:35,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-07-09 17:06:35,287 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:35,288 INFO L82 PathProgramCache]: Analyzing trace with hash -213394367, now seen corresponding path program 8 times [2021-07-09 17:06:35,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:35,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382643924] [2021-07-09 17:06:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:36,410 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 17:06:36,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:36,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382643924] [2021-07-09 17:06:36,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382643924] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:36,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:36,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:36,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813871775] [2021-07-09 17:06:36,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:36,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:36,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:36,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:36,412 INFO L87 Difference]: Start difference. First operand 6566 states and 17520 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:37,546 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-09 17:06:37,733 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-07-09 17:06:38,167 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-07-09 17:06:38,392 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-07-09 17:06:38,646 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-07-09 17:06:39,001 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-07-09 17:06:39,511 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-07-09 17:06:39,865 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-07-09 17:06:40,767 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-07-09 17:06:41,104 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-07-09 17:06:41,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:41,914 INFO L93 Difference]: Finished difference Result 7220 states and 19017 transitions. [2021-07-09 17:06:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 17:06:41,914 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:41,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:41,924 INFO L225 Difference]: With dead ends: 7220 [2021-07-09 17:06:41,924 INFO L226 Difference]: Without dead ends: 6675 [2021-07-09 17:06:41,924 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 4813.7ms TimeCoverageRelationStatistics Valid=761, Invalid=3795, Unknown=0, NotChecked=0, Total=4556 [2021-07-09 17:06:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2021-07-09 17:06:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6230. [2021-07-09 17:06:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6230 states, 6229 states have (on average 2.6816503451597367) internal successors, (16704), 6229 states have internal predecessors, (16704), 0 states have call successors, (0), 0 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 17:06:41,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6230 states to 6230 states and 16704 transitions. [2021-07-09 17:06:41,997 INFO L78 Accepts]: Start accepts. Automaton has 6230 states and 16704 transitions. Word has length 120 [2021-07-09 17:06:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:41,997 INFO L482 AbstractCegarLoop]: Abstraction has 6230 states and 16704 transitions. [2021-07-09 17:06:41,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6230 states and 16704 transitions. [2021-07-09 17:06:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:42,004 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:42,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:42,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-07-09 17:06:42,004 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:42,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:42,004 INFO L82 PathProgramCache]: Analyzing trace with hash 694496349, now seen corresponding path program 9 times [2021-07-09 17:06:42,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:42,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497558650] [2021-07-09 17:06:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:43,175 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 17:06:43,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:43,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497558650] [2021-07-09 17:06:43,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497558650] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:43,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:43,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:43,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739624559] [2021-07-09 17:06:43,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:43,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:43,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:43,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:43,176 INFO L87 Difference]: Start difference. First operand 6230 states and 16704 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:44,260 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 17:06:44,449 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-07-09 17:06:44,868 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-07-09 17:06:45,093 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-07-09 17:06:45,348 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-07-09 17:06:45,694 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-07-09 17:06:46,211 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-07-09 17:06:46,554 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-07-09 17:06:47,319 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-07-09 17:06:47,481 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2021-07-09 17:06:48,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:48,739 INFO L93 Difference]: Finished difference Result 6819 states and 18051 transitions. [2021-07-09 17:06:48,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 17:06:48,739 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:48,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:48,748 INFO L225 Difference]: With dead ends: 6819 [2021-07-09 17:06:48,748 INFO L226 Difference]: Without dead ends: 6582 [2021-07-09 17:06:48,749 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 4976.2ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-07-09 17:06:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2021-07-09 17:06:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6206. [2021-07-09 17:06:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6205 states have (on average 2.684286865431104) internal successors, (16656), 6205 states have internal predecessors, (16656), 0 states have call successors, (0), 0 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 17:06:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 16656 transitions. [2021-07-09 17:06:48,825 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 16656 transitions. Word has length 120 [2021-07-09 17:06:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:48,825 INFO L482 AbstractCegarLoop]: Abstraction has 6206 states and 16656 transitions. [2021-07-09 17:06:48,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 16656 transitions. [2021-07-09 17:06:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:48,832 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:48,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:48,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-07-09 17:06:48,832 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:48,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1789607441, now seen corresponding path program 10 times [2021-07-09 17:06:48,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:48,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466252238] [2021-07-09 17:06:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:50,381 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 17:06:50,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:50,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466252238] [2021-07-09 17:06:50,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466252238] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:50,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:50,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:50,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265039938] [2021-07-09 17:06:50,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:50,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:50,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:50,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:50,382 INFO L87 Difference]: Start difference. First operand 6206 states and 16656 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:51,410 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-07-09 17:06:51,751 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-07-09 17:06:51,970 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-07-09 17:06:52,211 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-07-09 17:06:52,499 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-07-09 17:06:52,892 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-07-09 17:06:53,659 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-07-09 17:06:53,843 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-07-09 17:06:54,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:54,927 INFO L93 Difference]: Finished difference Result 7782 states and 20492 transitions. [2021-07-09 17:06:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 17:06:54,928 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-07-09 17:06:54,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:54,938 INFO L225 Difference]: With dead ends: 7782 [2021-07-09 17:06:54,938 INFO L226 Difference]: Without dead ends: 7306 [2021-07-09 17:06:54,938 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4584.3ms TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2021-07-09 17:06:54,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7306 states. [2021-07-09 17:06:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7306 to 6734. [2021-07-09 17:06:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6734 states, 6733 states have (on average 2.669835140353483) internal successors, (17976), 6733 states have internal predecessors, (17976), 0 states have call successors, (0), 0 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 17:06:55,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6734 states to 6734 states and 17976 transitions. [2021-07-09 17:06:55,025 INFO L78 Accepts]: Start accepts. Automaton has 6734 states and 17976 transitions. Word has length 120 [2021-07-09 17:06:55,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:55,025 INFO L482 AbstractCegarLoop]: Abstraction has 6734 states and 17976 transitions. [2021-07-09 17:06:55,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6734 states and 17976 transitions. [2021-07-09 17:06:55,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-07-09 17:06:55,032 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:55,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:55,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-07-09 17:06:55,032 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:55,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:55,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1658740777, now seen corresponding path program 11 times [2021-07-09 17:06:55,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:55,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680293607] [2021-07-09 17:06:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:56,368 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 17:06:56,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:56,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680293607] [2021-07-09 17:06:56,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680293607] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:56,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:56,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-07-09 17:06:56,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806081330] [2021-07-09 17:06:56,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:06:56,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:56,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:06:56,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:06:56,370 INFO L87 Difference]: Start difference. First operand 6734 states and 17976 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:06:57,312 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-07-09 17:06:57,514 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-07-09 17:06:57,746 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-07-09 17:06:58,221 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-07-09 17:06:58,514 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-07-09 17:06:58,846 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-07-09 17:06:59,296 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-07-09 17:06:59,848 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 Received shutdown request... [2021-07-09 17:07:00,271 WARN L222 SmtUtils]: Removed 9 from assertion stack [2021-07-09 17:07:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 17:07:00,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-07-09 17:07:00,271 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:07:00,273 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 17:07:00,275 WARN L196 ceAbstractionStarter]: Timeout [2021-07-09 17:07:00,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 05:07:00 BasicIcfg [2021-07-09 17:07:00,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 17:07:00,275 INFO L168 Benchmark]: Toolchain (without parser) took 845762.71 ms. Allocated memory was 208.7 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 169.2 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 391.5 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:00,275 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 208.7 MB. Free memory is still 189.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 17:07:00,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.17 ms. Allocated memory is still 208.7 MB. Free memory was 169.0 MB in the beginning and 145.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:00,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.99 ms. Allocated memory is still 208.7 MB. Free memory was 145.9 MB in the beginning and 142.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:00,276 INFO L168 Benchmark]: Boogie Preprocessor took 61.99 ms. Allocated memory is still 208.7 MB. Free memory was 142.8 MB in the beginning and 140.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:00,276 INFO L168 Benchmark]: RCFGBuilder took 497.58 ms. Allocated memory is still 208.7 MB. Free memory was 140.1 MB in the beginning and 91.9 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:00,276 INFO L168 Benchmark]: TraceAbstraction took 844325.39 ms. Allocated memory was 208.7 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 91.4 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 313.6 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:00,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 208.7 MB. Free memory is still 189.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 802.17 ms. Allocated memory is still 208.7 MB. Free memory was 169.0 MB in the beginning and 145.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 69.99 ms. Allocated memory is still 208.7 MB. Free memory was 145.9 MB in the beginning and 142.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.99 ms. Allocated memory is still 208.7 MB. Free memory was 142.8 MB in the beginning and 140.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 497.58 ms. Allocated memory is still 208.7 MB. Free memory was 140.1 MB in the beginning and 91.9 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 844325.39 ms. Allocated memory was 208.7 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 91.4 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 313.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6734states) and FLOYD_HOARE automaton (currently 23 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 73 for 83ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6734states) and FLOYD_HOARE automaton (currently 23 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 73 for 83ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6734states) and FLOYD_HOARE automaton (currently 23 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 73 for 83ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6734states) and FLOYD_HOARE automaton (currently 23 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 73 for 83ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6734states) and FLOYD_HOARE automaton (currently 23 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 73 for 83ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6734states) and FLOYD_HOARE automaton (currently 23 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 73 for 83ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 178 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 844243.0ms, OverallIterations: 369, TraceHistogramMax: 1, EmptinessCheckTime: 4300.8ms, AutomataDifference: 621506.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 223.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 140404 SDtfs, 441117 SDslu, 800699 SDs, 0 SdLazy, 224914 SolverSat, 4034 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118027.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13832 GetRequests, 1452 SyntacticMatches, 728 SemanticMatches, 11651 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35874 ImplicationChecksByTransitivity, 546554.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10765occurred in iteration=55, InterpolantAutomatonStates: 6710, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 77231.6ms AutomataMinimizationTime, 368 MinimizatonAttempts, 3551663 StatesRemovedByMinimization, 367 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 569.6ms SsaConstructionTime, 4610.5ms SatisfiabilityAnalysisTime, 132961.8ms InterpolantComputationTime, 41846 NumberOfCodeBlocks, 41846 NumberOfCodeBlocksAsserted, 369 NumberOfCheckSat, 41477 ConstructedInterpolants, 0 QuantifiedInterpolants, 288903 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 369 InterpolantComputations, 369 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown